Spruceanthus planifolius, a rare species previously known only from Japan and Korea, is reported ... more Spruceanthus planifolius, a rare species previously known only from Japan and Korea, is reported here for the first time from China. This species is characterized by the large leaf lobules ca. 1/2 as long as leaf lobes, the lobule with one tooth, and the lobular tooth 3–4 cells long and 2–3 cells wide at base. Detailed description and illustrations of S. planifolius are provided. The intensive Floristic Habitat Sampling (FHS) approach is suggested as the reason for the discovery of this rare species from China.
Cololejeunea tianmuensis sp. nov. is described and illustrated from Tianmushan National Nature Re... more Cololejeunea tianmuensis sp. nov. is described and illustrated from Tianmushan National Nature Reserve, Lin’an City, Zhejiang Province, China. The new species is similar to C. magnistyla and C. japonica, but differs mainly in its variable stylus which ranges from one to five cells in length and one to two cells in width on the same stem. The conservation of the new species is also discussed here.
Cololejeunea (Spruce 1884: 291) Stephani (1891: 208), with over 400 published binominals, is the ... more Cololejeunea (Spruce 1884: 291) Stephani (1891: 208), with over 400 published binominals, is the largest genus of Lejeuneaceae Cavers (1910: 291) and the most species of the genus are distributed in the tropical and subtropical regions (Zhu & So 2001, Yu et al. 2013). These usually small sized liverworts grow preferably in extreme habitats, such as on the surface of living leaves, on twigs, or in running water (Gradstein et al. 2003). The currently accepted generic concept of the genus is based on its incubous foliation, leaves consisting of a dorsal lobe and a ventral lobule, Lejeunea-type branching, lack of underleaves, and transverse section of stem comprising of 5(–8) cortical cells and 1 medullary cell (Yu et al. 2013, and references therein).
Based on the examination of herbarium material, the extant distribution of Acrolejeunea sandvicen... more Based on the examination of herbarium material, the extant distribution of Acrolejeunea sandvicensis is shown to be disjunctive between subtropical East Asia and Hawaii. All tropical records of the species with one exception (southern India: Palani Hills) are erroneous. Close similarity to the fossil A. ucrainica may indicate that the species was widespread in the Holarctic during the Tertiary. The Asia-Hawaii disjunct plant relationships, especially liverworts, are briefly discussed. Verification of published records is essential for the assessment of the geographical ranges of species and is a key step towards the prediction of the species occurrences.
Spruceanthus planifolius, a rare species previously known only from Japan and Korea, is reported ... more Spruceanthus planifolius, a rare species previously known only from Japan and Korea, is reported here for the first time from China. This species is characterized by the large leaf lobules ca. 1/2 as long as leaf lobes, the lobule with one tooth, and the lobular tooth 3–4 cells long and 2–3 cells wide at base. Detailed description and illustrations of S. planifolius are provided. The intensive Floristic Habitat Sampling (FHS) approach is suggested as the reason for the discovery of this rare species from China.
Cololejeunea tianmuensis sp. nov. is described and illustrated from Tianmushan National Nature Re... more Cololejeunea tianmuensis sp. nov. is described and illustrated from Tianmushan National Nature Reserve, Lin’an City, Zhejiang Province, China. The new species is similar to C. magnistyla and C. japonica, but differs mainly in its variable stylus which ranges from one to five cells in length and one to two cells in width on the same stem. The conservation of the new species is also discussed here.
Cololejeunea (Spruce 1884: 291) Stephani (1891: 208), with over 400 published binominals, is the ... more Cololejeunea (Spruce 1884: 291) Stephani (1891: 208), with over 400 published binominals, is the largest genus of Lejeuneaceae Cavers (1910: 291) and the most species of the genus are distributed in the tropical and subtropical regions (Zhu & So 2001, Yu et al. 2013). These usually small sized liverworts grow preferably in extreme habitats, such as on the surface of living leaves, on twigs, or in running water (Gradstein et al. 2003). The currently accepted generic concept of the genus is based on its incubous foliation, leaves consisting of a dorsal lobe and a ventral lobule, Lejeunea-type branching, lack of underleaves, and transverse section of stem comprising of 5(–8) cortical cells and 1 medullary cell (Yu et al. 2013, and references therein).
Based on the examination of herbarium material, the extant distribution of Acrolejeunea sandvicen... more Based on the examination of herbarium material, the extant distribution of Acrolejeunea sandvicensis is shown to be disjunctive between subtropical East Asia and Hawaii. All tropical records of the species with one exception (southern India: Palani Hills) are erroneous. Close similarity to the fossil A. ucrainica may indicate that the species was widespread in the Holarctic during the Tertiary. The Asia-Hawaii disjunct plant relationships, especially liverworts, are briefly discussed. Verification of published records is essential for the assessment of the geographical ranges of species and is a key step towards the prediction of the species occurrences.
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