Journal of Tropical Biodiversity and Biotechnology
Bantimurung Bulusaraung National Park is an area that has the largest karst ecosystem in Indonesi... more Bantimurung Bulusaraung National Park is an area that has the largest karst ecosystem in Indonesia. Karst is prone to damage and difficult to reuse, so it requires conservation efforts. One of the plant species that can maintain this sustainability is Ficus which acts as key species in karst ecosystems. However, at this time the species is experiencing disturbances, one of which is due to the experience of invasive plants that can threaten the existence of Ficus because the weeds can colonize habitats and are dominant which can change species diversity. This study aimed to analyze the diversity and distribution of Ficus, compare species composition, and analyze environmental factors that affect Ficus spp. in Pattunuang Resort and Bantimurung Resort. Vegetation analysis method with nesting plots placed by purposive sampling and supported with environmental and soil data measurements to determine the factors that indicate the habitat preference of Ficus. We found 18 plant species of F...
Taman Buah Mekarsari mengembangkan beberapa kultivar nangka, antara lain kultivar Telanjang, Mini... more Taman Buah Mekarsari mengembangkan beberapa kultivar nangka, antara lain kultivar Telanjang, Mini, Bubur, dan Dulang. Keempat kultivar tersebut dibedakan berdasarkan keunikan buahnya. Keragaman kultivar nangka sangat banyak, namun studi mengenai anatomi daun kultivar nangka yang berbeda belum pernah dilakukan. Penelitian ini bertujuan mempelajari karakter anatomi daun beberapa kultivar nangka koleksi Taman Buah Mekarsari, Bogor. Sampel diambil dari tiga pohon untuk tiap kultivar dengan tiga ulangan cabang untuk tiap pohon. Sediaan sayatan paradermal dan transversal dibuat dari daun keempat dari ujung cabang. Hasil pengamatan sayatan paradermal daun menunjukkan sel epidermis berbentuk tidak beraturan dengan dinding sel antiklinal rata hingga berlekuk. Stomata hanya terdapat pada sisi abaksial daun dengan tipe anomositik. Pada kultivar nangka dijumpai dua jenis trikoma, yaitu trikoma kelenjar dan trikoma non kelenjar. Tidak terdapat perbedaan karakter anatomi daun pada semua daun kult...
Sweet star fruit (Averrhoa carambola L., belimbing manis) is one of Indonesia’s most popular frui... more Sweet star fruit (Averrhoa carambola L., belimbing manis) is one of Indonesia’s most popular fruit plants. Anatomically, the characters of the local sweet star fruit of Mekar Sari Fruit Garden are not widely known, so this study aims to observe the anatomical structure of the leaves. The materials used were star fruit leaves of varieties Demak Jingga, Demak Kapur, Demak Kunir, Welahan, and Wulan. The leaves of star fruit varieties were made microscopic preparations in paradermal incisions using the whole mount method and transverse incisions using the paraffin method. The observation result of the paradermal incision of sweet star fruit leaves showed that the type of epidermal cell wall is straight and shallow grooved. The leaf stomata of five sweet star fruit varieties were paracytic. The calculation of the index value, size and density of stomata varied between varieties. The highest stomata density and index were found in the Welahan variety. The results of the transverse incisio...
Paku merupakan tumbuhan vaskular penghasil spora yang terdiri atas akar, rimpang dan ental. Bagi... more Paku merupakan tumbuhan vaskular penghasil spora yang terdiri atas akar, rimpang dan ental. Bagian rimpang, stipe dan bagian muda dari helaian daun seringkali ditutupi oleh indumentum (sisik/rambut). Penelitian ini bertujuan untuk mengkarakterisasi mikromorfologi dari 18 jenis paku terpilih yang dijumpai di kawasan kebun teh Kampung Citalahab. Pengambilan sampel dilakukan dengan metode jelajah bebas. Karakter mikromorfologi diamati dan didokumentasikan menggunakan mikroskop. Hasil pengamatan disajikan dalam bentuk gambar dan dianalisis secara deskriptif. Hasil karakterisasi mikromorfologi menunjukkan variasi pada warna sisik dan bentuk sisik. Karakter mikromorfologi yang diamati dapat memperkaya bukti taksonomi setiap jenis paku.
Ibna Hayati, Alex Hartana, Nina Ratna Djuita & Nunik Sri Ariyanti. 2022. Morphological Variation ... more Ibna Hayati, Alex Hartana, Nina Ratna Djuita & Nunik Sri Ariyanti. 2022. Morphological Variation of Kedondong (Spondias dulcis Parkinson) in Central Part of Sumatra. Floribunda 6(8): 315–323 — Kedondong (Spondias dulcis Parkinson), is widely cultivated in the tropics and reported possibly native plant from Malesia and Pacific. Since a long time several regions in Indonesia has been known as producing area. Around 60s, Sumatra has reputable kedondong from sabang which has sweet flavour and large size. However information on the morphological variation of kedondong germplasm is still limited. The objective of this study was to describe and grouped morphological variation of kedondong germplasm in central part of Sumatra. The specimens were explored and collected from Riau, West Sumatra, and Jambi. Fifty morphological characters were observed and scored for grouping analysis using UPGMA methods. Some characteristics of kedondong from central part of Sumatra are very varied. The kedon...
Epiphytic ferns can be found in host trees from the Angiosperm and Gymnosperm groups. Epiphytic f... more Epiphytic ferns can be found in host trees from the Angiosperm and Gymnosperm groups. Epiphytic ferns in Angiosperm plants host have been widely studied, but there is little known for Gymnosperm plants host. The aim of this study was to identify the species of epiphytic ferns in the Gymnosperm plants host at Cibodas Botanical Garden and to analyze the diversity of epiphytic ferns based on microclimate conditions and the surface texture of Gymnosperms plants host. Epiphytic ferns diversity data was obtained using purposive random sampling method. Factors that influence the occupancy of ferns are analyzed using Principal Component Analysis. Epiphytic ferns in Gymnosperm host at Cibodas Botanical Garden were identified as 18 species including 7 family. The most dominant species of epiphytic fern is Davallia denticulata (59.45%). Diversity of epiphytic fern on Gymnosperm at Cibodas Botanical Garden is moderate (H’ = 1.81).
Qothrunnada Sungkar, Tatik Chikmawati & Nina Ratna Djuita. 2017. Leaf Anatomy of Rambutan (Nephel... more Qothrunnada Sungkar, Tatik Chikmawati & Nina Ratna Djuita. 2017. Leaf Anatomy of Rambutan (Nephelium lappaceum L.) and Its Relatives. Floribunda 5(6): 192–199. — Rambutan belongs to the Sapindaceae family that has closely related to longan and lychee. The observation on leaf anatomy of rambutan, longan, and lychee was conducted to provide information about leaf anatomy of Sapindaceae’s members. The anatomical features of leaf paradermal and transversal sections were examinated on four varieties of rambutan namely binjai, rapiah, sikoneng, and aceh lengkeng; and two closely related families, longan and lychee. All rambutan cultivars and lychee had the same stomata type: cyclocytic, while stomata in longan was surrounded by six subsidiary cells. Epidermal cells of rambutan and lychee leaves have polygonal shape with flat side, whereas epidermal cell of longan has polygonal shapes with notched. Based on transversal sections, rambutan, longan, and lychee have bifacial type, but they a...
Cytological observations have been carried out by several researchers in South China, Japan, Ceyl... more Cytological observations have been carried out by several researchers in South China, Japan, Ceylon, Hongkong, Himalaya and Java. The results from various regions showed that P. multifida had a fairly high genetic variation, namely diploid, triploid and tetraploid types. Therefore cytological and reproductive study on P. multifida from its geographical distribution areas need to be done. The objectives of this research were to observe the somatic chromosome number and reproductive type of P. multifida, and to recognize the relationship between morphological variation and its ploidy level as well as stomatal index. Plants were collected from several localities in Bogor. Ploidy level was determined by observing somatic chromosome number by using squash methods. Reproductive type was determined by counting spore number in each sporangium. Morphological characters examined were the stipe, lamina, pinnae, veins, and indusium. Observations of stomata and epidermis of leaves were done by m...
Normal 0 false false false IN JA X-NONE Evolution in Sapindaceae have been running for a long tim... more Normal 0 false false false IN JA X-NONE Evolution in Sapindaceae have been running for a long time, as evidenced by the fossil of Sapindopsis encountered in the mid Cretaceous. Based on its characteristics, the genus is thought to live in stressful environments. Sapindaceae has the habitus of shrubs, trees, climbers, and the vine. Speciation in Sapindaceae can be found in genus Acor, while members of Sapindaceae which had hybridization can be found in genus Aesculus /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:none; font-size:12.0pt; font-family:"Times New Roman","serif"; mso-ansi-language:EN-US; mso-fareast-language:EN-US; mso-bidi-language:EN-US;} Evolution in Sapindaceae have been runnin...
Christyne SPLS Napitu, Tatik Chikmawati & Nina Ratna Djuita. 2016. Genetic Diversity of Wild Ramb... more Christyne SPLS Napitu, Tatik Chikmawati & Nina Ratna Djuita. 2016. Genetic Diversity of Wild Rambutans (Nephelium spp.) in Sanggau Regency, West Kalimantan Based on SSR and ISSR Markers. Floribunda 5(4): 115–125. — This study aimed to determine the genetic diversity of wild rambutans from Sanggau Regency (West Kalimantan) based on SSR and ISSR markers. Plant materials were collected from five subdistricts: Bonti, Jangkang, Parindu, Mukok and Kapuas, in Sanggau Regency. There were four species of wild rambutans with five vatieties, namely N. cuspidatum var. cuspidatum, N. cuspidatum var. eriopetalum, N. cuspidatum var. robustum, N. lappaceum var. lappaceum, N. lappaceum var. xanthioides, N. rubescens and N. uncinatum found in the research site. The highest genetic diversity from the samples based on SSR markers was found in Jangkang (He=0.27) and the highest genetic diversity based on ISSR was found in Bonti (He=0.18). Cluster analysis using Unweighted Pair Group Method with Arithmet...
Nina Ratna Djuita & Muhammad Jusuf. 2006. The use of Multivariate Analysis in Numerical Taxonomy ... more Nina Ratna Djuita & Muhammad Jusuf. 2006. The use of Multivariate Analysis in Numerical Taxonomy : Case of Two, Soybean Cultivars and Their Generation (F2). Floribunda 3(1): 10-18. --- Multivariate analysis was applied to the morphological data of Slamet and Nokon Sawon cultivars and their generation (F2). This research was intended to compare multivariate analysis namely principal component analysis and disciminant analysis to two cultivars above and their generation. The first analysis resulted 2 and 7 principal components of covariance and correlation matrix for original data while data transformed revealed 5 and 8 principal components of covariance and correlation matrix respectively. Based on discriminant analysis, Nokon and Sawon’s cultivar can be successfully classified as a single group different from the rest.
Nina Ratna Djuita, Alex Hartana, Tatik Chikmawati & Dorly. 2016. Distribution of pulasan [Nepheli... more Nina Ratna Djuita, Alex Hartana, Tatik Chikmawati & Dorly. 2016. Distribution of pulasan [Nephelium ramboutan-ake (Labill.) Leenh] in Java and Relationship of Their Morphology. Floribunda 5(4): 129–138. — Distribution of pulasan in Java is not known yet. The purposes of this study were to provide information about the locations of pulasan trees in Java, and to analyze relationship of this species based on morphological characters. Pulasan exploration was carried out in four provinces in Java encompassed West Java, Central Java, East Java, and Yogyakarta Special Region. Morphological characteristics of pulasan were observed, then the relationships were analyze using NTSys pc 2.02 program. Result showed that most of pulasan located in West Java, especially in the area of Bogor. Based on the dendrogram, it was known that the use of ve-getative dan generative characters could distinguish males and hermaphrodite pulasan trees, while the use of vegetative characters only, could not dif...
Recent more intensive explorations and collections of hornworts in Mt. Slamet indicated that six ... more Recent more intensive explorations and collections of hornworts in Mt. Slamet indicated that six species can be recognized, namely Anthoceros punctatus, Folioceros fuciformis, Phaeoceros carolinianus, P. exiguus, Dendroceros difficilis, and Megaceros flagellaris. Since originally only one species D. difficilis was recorded from this area, this means that five species represent new records for the area, whereas P. exiguus is not only a new record for Java, but it is also a new record for Malesia.
Pulasan is an androdioecious plant that has both male and hermaphrodite flowers on separate plant... more Pulasan is an androdioecious plant that has both male and hermaphrodite flowers on separate plants. The objectives of this study were to obtain data about the anatomical structure of pulasan flower and to investigate whether the pistil and the stamens of pulasan flower reach maturity at different times. The anatomical observation was done on compound flowers taken from three male trees and three hermaphrodite trees. Two compound flowers that still in buds, about to bloom and fully bloom were picked from each tree. Flowers were observed in a cross and longitudinal section. The results showed that the sepals of pulasan flower comprised of the uniseriate epidermis and multilayered polyhedral parenchymal cells. Stamen development started from the anther followed by the formation of the filament. The pollen of hermaphrodite pulasan flowers reached maturation earlier than the pistil. The pistil development started from the expansion of meristem cells in the center of the flower and ends ...
Journal of Tropical Biodiversity and Biotechnology
Bantimurung Bulusaraung National Park is an area that has the largest karst ecosystem in Indonesi... more Bantimurung Bulusaraung National Park is an area that has the largest karst ecosystem in Indonesia. Karst is prone to damage and difficult to reuse, so it requires conservation efforts. One of the plant species that can maintain this sustainability is Ficus which acts as key species in karst ecosystems. However, at this time the species is experiencing disturbances, one of which is due to the experience of invasive plants that can threaten the existence of Ficus because the weeds can colonize habitats and are dominant which can change species diversity. This study aimed to analyze the diversity and distribution of Ficus, compare species composition, and analyze environmental factors that affect Ficus spp. in Pattunuang Resort and Bantimurung Resort. Vegetation analysis method with nesting plots placed by purposive sampling and supported with environmental and soil data measurements to determine the factors that indicate the habitat preference of Ficus. We found 18 plant species of F...
Taman Buah Mekarsari mengembangkan beberapa kultivar nangka, antara lain kultivar Telanjang, Mini... more Taman Buah Mekarsari mengembangkan beberapa kultivar nangka, antara lain kultivar Telanjang, Mini, Bubur, dan Dulang. Keempat kultivar tersebut dibedakan berdasarkan keunikan buahnya. Keragaman kultivar nangka sangat banyak, namun studi mengenai anatomi daun kultivar nangka yang berbeda belum pernah dilakukan. Penelitian ini bertujuan mempelajari karakter anatomi daun beberapa kultivar nangka koleksi Taman Buah Mekarsari, Bogor. Sampel diambil dari tiga pohon untuk tiap kultivar dengan tiga ulangan cabang untuk tiap pohon. Sediaan sayatan paradermal dan transversal dibuat dari daun keempat dari ujung cabang. Hasil pengamatan sayatan paradermal daun menunjukkan sel epidermis berbentuk tidak beraturan dengan dinding sel antiklinal rata hingga berlekuk. Stomata hanya terdapat pada sisi abaksial daun dengan tipe anomositik. Pada kultivar nangka dijumpai dua jenis trikoma, yaitu trikoma kelenjar dan trikoma non kelenjar. Tidak terdapat perbedaan karakter anatomi daun pada semua daun kult...
Sweet star fruit (Averrhoa carambola L., belimbing manis) is one of Indonesia’s most popular frui... more Sweet star fruit (Averrhoa carambola L., belimbing manis) is one of Indonesia’s most popular fruit plants. Anatomically, the characters of the local sweet star fruit of Mekar Sari Fruit Garden are not widely known, so this study aims to observe the anatomical structure of the leaves. The materials used were star fruit leaves of varieties Demak Jingga, Demak Kapur, Demak Kunir, Welahan, and Wulan. The leaves of star fruit varieties were made microscopic preparations in paradermal incisions using the whole mount method and transverse incisions using the paraffin method. The observation result of the paradermal incision of sweet star fruit leaves showed that the type of epidermal cell wall is straight and shallow grooved. The leaf stomata of five sweet star fruit varieties were paracytic. The calculation of the index value, size and density of stomata varied between varieties. The highest stomata density and index were found in the Welahan variety. The results of the transverse incisio...
Paku merupakan tumbuhan vaskular penghasil spora yang terdiri atas akar, rimpang dan ental. Bagi... more Paku merupakan tumbuhan vaskular penghasil spora yang terdiri atas akar, rimpang dan ental. Bagian rimpang, stipe dan bagian muda dari helaian daun seringkali ditutupi oleh indumentum (sisik/rambut). Penelitian ini bertujuan untuk mengkarakterisasi mikromorfologi dari 18 jenis paku terpilih yang dijumpai di kawasan kebun teh Kampung Citalahab. Pengambilan sampel dilakukan dengan metode jelajah bebas. Karakter mikromorfologi diamati dan didokumentasikan menggunakan mikroskop. Hasil pengamatan disajikan dalam bentuk gambar dan dianalisis secara deskriptif. Hasil karakterisasi mikromorfologi menunjukkan variasi pada warna sisik dan bentuk sisik. Karakter mikromorfologi yang diamati dapat memperkaya bukti taksonomi setiap jenis paku.
Ibna Hayati, Alex Hartana, Nina Ratna Djuita & Nunik Sri Ariyanti. 2022. Morphological Variation ... more Ibna Hayati, Alex Hartana, Nina Ratna Djuita & Nunik Sri Ariyanti. 2022. Morphological Variation of Kedondong (Spondias dulcis Parkinson) in Central Part of Sumatra. Floribunda 6(8): 315–323 — Kedondong (Spondias dulcis Parkinson), is widely cultivated in the tropics and reported possibly native plant from Malesia and Pacific. Since a long time several regions in Indonesia has been known as producing area. Around 60s, Sumatra has reputable kedondong from sabang which has sweet flavour and large size. However information on the morphological variation of kedondong germplasm is still limited. The objective of this study was to describe and grouped morphological variation of kedondong germplasm in central part of Sumatra. The specimens were explored and collected from Riau, West Sumatra, and Jambi. Fifty morphological characters were observed and scored for grouping analysis using UPGMA methods. Some characteristics of kedondong from central part of Sumatra are very varied. The kedon...
Epiphytic ferns can be found in host trees from the Angiosperm and Gymnosperm groups. Epiphytic f... more Epiphytic ferns can be found in host trees from the Angiosperm and Gymnosperm groups. Epiphytic ferns in Angiosperm plants host have been widely studied, but there is little known for Gymnosperm plants host. The aim of this study was to identify the species of epiphytic ferns in the Gymnosperm plants host at Cibodas Botanical Garden and to analyze the diversity of epiphytic ferns based on microclimate conditions and the surface texture of Gymnosperms plants host. Epiphytic ferns diversity data was obtained using purposive random sampling method. Factors that influence the occupancy of ferns are analyzed using Principal Component Analysis. Epiphytic ferns in Gymnosperm host at Cibodas Botanical Garden were identified as 18 species including 7 family. The most dominant species of epiphytic fern is Davallia denticulata (59.45%). Diversity of epiphytic fern on Gymnosperm at Cibodas Botanical Garden is moderate (H’ = 1.81).
Qothrunnada Sungkar, Tatik Chikmawati & Nina Ratna Djuita. 2017. Leaf Anatomy of Rambutan (Nephel... more Qothrunnada Sungkar, Tatik Chikmawati & Nina Ratna Djuita. 2017. Leaf Anatomy of Rambutan (Nephelium lappaceum L.) and Its Relatives. Floribunda 5(6): 192–199. — Rambutan belongs to the Sapindaceae family that has closely related to longan and lychee. The observation on leaf anatomy of rambutan, longan, and lychee was conducted to provide information about leaf anatomy of Sapindaceae’s members. The anatomical features of leaf paradermal and transversal sections were examinated on four varieties of rambutan namely binjai, rapiah, sikoneng, and aceh lengkeng; and two closely related families, longan and lychee. All rambutan cultivars and lychee had the same stomata type: cyclocytic, while stomata in longan was surrounded by six subsidiary cells. Epidermal cells of rambutan and lychee leaves have polygonal shape with flat side, whereas epidermal cell of longan has polygonal shapes with notched. Based on transversal sections, rambutan, longan, and lychee have bifacial type, but they a...
Cytological observations have been carried out by several researchers in South China, Japan, Ceyl... more Cytological observations have been carried out by several researchers in South China, Japan, Ceylon, Hongkong, Himalaya and Java. The results from various regions showed that P. multifida had a fairly high genetic variation, namely diploid, triploid and tetraploid types. Therefore cytological and reproductive study on P. multifida from its geographical distribution areas need to be done. The objectives of this research were to observe the somatic chromosome number and reproductive type of P. multifida, and to recognize the relationship between morphological variation and its ploidy level as well as stomatal index. Plants were collected from several localities in Bogor. Ploidy level was determined by observing somatic chromosome number by using squash methods. Reproductive type was determined by counting spore number in each sporangium. Morphological characters examined were the stipe, lamina, pinnae, veins, and indusium. Observations of stomata and epidermis of leaves were done by m...
Normal 0 false false false IN JA X-NONE Evolution in Sapindaceae have been running for a long tim... more Normal 0 false false false IN JA X-NONE Evolution in Sapindaceae have been running for a long time, as evidenced by the fossil of Sapindopsis encountered in the mid Cretaceous. Based on its characteristics, the genus is thought to live in stressful environments. Sapindaceae has the habitus of shrubs, trees, climbers, and the vine. Speciation in Sapindaceae can be found in genus Acor, while members of Sapindaceae which had hybridization can be found in genus Aesculus /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:none; font-size:12.0pt; font-family:"Times New Roman","serif"; mso-ansi-language:EN-US; mso-fareast-language:EN-US; mso-bidi-language:EN-US;} Evolution in Sapindaceae have been runnin...
Christyne SPLS Napitu, Tatik Chikmawati & Nina Ratna Djuita. 2016. Genetic Diversity of Wild Ramb... more Christyne SPLS Napitu, Tatik Chikmawati & Nina Ratna Djuita. 2016. Genetic Diversity of Wild Rambutans (Nephelium spp.) in Sanggau Regency, West Kalimantan Based on SSR and ISSR Markers. Floribunda 5(4): 115–125. — This study aimed to determine the genetic diversity of wild rambutans from Sanggau Regency (West Kalimantan) based on SSR and ISSR markers. Plant materials were collected from five subdistricts: Bonti, Jangkang, Parindu, Mukok and Kapuas, in Sanggau Regency. There were four species of wild rambutans with five vatieties, namely N. cuspidatum var. cuspidatum, N. cuspidatum var. eriopetalum, N. cuspidatum var. robustum, N. lappaceum var. lappaceum, N. lappaceum var. xanthioides, N. rubescens and N. uncinatum found in the research site. The highest genetic diversity from the samples based on SSR markers was found in Jangkang (He=0.27) and the highest genetic diversity based on ISSR was found in Bonti (He=0.18). Cluster analysis using Unweighted Pair Group Method with Arithmet...
Nina Ratna Djuita & Muhammad Jusuf. 2006. The use of Multivariate Analysis in Numerical Taxonomy ... more Nina Ratna Djuita & Muhammad Jusuf. 2006. The use of Multivariate Analysis in Numerical Taxonomy : Case of Two, Soybean Cultivars and Their Generation (F2). Floribunda 3(1): 10-18. --- Multivariate analysis was applied to the morphological data of Slamet and Nokon Sawon cultivars and their generation (F2). This research was intended to compare multivariate analysis namely principal component analysis and disciminant analysis to two cultivars above and their generation. The first analysis resulted 2 and 7 principal components of covariance and correlation matrix for original data while data transformed revealed 5 and 8 principal components of covariance and correlation matrix respectively. Based on discriminant analysis, Nokon and Sawon’s cultivar can be successfully classified as a single group different from the rest.
Nina Ratna Djuita, Alex Hartana, Tatik Chikmawati & Dorly. 2016. Distribution of pulasan [Nepheli... more Nina Ratna Djuita, Alex Hartana, Tatik Chikmawati & Dorly. 2016. Distribution of pulasan [Nephelium ramboutan-ake (Labill.) Leenh] in Java and Relationship of Their Morphology. Floribunda 5(4): 129–138. — Distribution of pulasan in Java is not known yet. The purposes of this study were to provide information about the locations of pulasan trees in Java, and to analyze relationship of this species based on morphological characters. Pulasan exploration was carried out in four provinces in Java encompassed West Java, Central Java, East Java, and Yogyakarta Special Region. Morphological characteristics of pulasan were observed, then the relationships were analyze using NTSys pc 2.02 program. Result showed that most of pulasan located in West Java, especially in the area of Bogor. Based on the dendrogram, it was known that the use of ve-getative dan generative characters could distinguish males and hermaphrodite pulasan trees, while the use of vegetative characters only, could not dif...
Recent more intensive explorations and collections of hornworts in Mt. Slamet indicated that six ... more Recent more intensive explorations and collections of hornworts in Mt. Slamet indicated that six species can be recognized, namely Anthoceros punctatus, Folioceros fuciformis, Phaeoceros carolinianus, P. exiguus, Dendroceros difficilis, and Megaceros flagellaris. Since originally only one species D. difficilis was recorded from this area, this means that five species represent new records for the area, whereas P. exiguus is not only a new record for Java, but it is also a new record for Malesia.
Pulasan is an androdioecious plant that has both male and hermaphrodite flowers on separate plant... more Pulasan is an androdioecious plant that has both male and hermaphrodite flowers on separate plants. The objectives of this study were to obtain data about the anatomical structure of pulasan flower and to investigate whether the pistil and the stamens of pulasan flower reach maturity at different times. The anatomical observation was done on compound flowers taken from three male trees and three hermaphrodite trees. Two compound flowers that still in buds, about to bloom and fully bloom were picked from each tree. Flowers were observed in a cross and longitudinal section. The results showed that the sepals of pulasan flower comprised of the uniseriate epidermis and multilayered polyhedral parenchymal cells. Stamen development started from the anther followed by the formation of the filament. The pollen of hermaphrodite pulasan flowers reached maturation earlier than the pistil. The pistil development started from the expansion of meristem cells in the center of the flower and ends ...
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Papers by Nina Ratna Djuita Djuita