Selaginella

This paper deals with compression fossils of two Late Carboniferous herbaceous lycopods, New fertile material of
Selaginellites gutbieri (G6ppert, 1837) Kidston, 1911 was collected from its type locality Oelsnitz (Westphalian D; Erzgebirge- Basin). The three-dimensionally preserved strobili clearly show micro- and megasporangia. In addition a sterile large-leaved form is described from the Westphalian D of the Saar Basin.

Setyawan AD, Supriatna J, Nisyawati, Sutarno, Sugiyarto, Nursamsi I. 2018. Predicting impacts of future climate change on the distribution of the widespread selaginellas (Selaginella ciliaris and S. plana) in Southeast Asia. Biodiversitas 19: 1960-1977. The current global climate is moving towards dangerous and unprecedented conditions that have been seen as a potentially devastating threat to the environment and all living things. Selaginella is a fern-allies that needs water as a medium for fertilization, hence its distribution is presumed to be affected by climate change. In Southeast Asia (SEA), there are two widely distributed selaginellas, namely Selaginella ciliaris and S. plana. S. ciliaris is a small herb (up to 4 cm), annual, abundant during the rainy season, and found in the middle-high plains, whereas S. plana is a stout large herb (up to 80 cm), perennial, and mainly found in the lowlands. The purpose of this study was to determine the potential niche distribution of S. ciliaris and S. plana under current climatic conditions, and to predict its future distribution under the impacts of climate change. We used Maxent software along with bioclimatic, edaphic, and UV radiation variables to model the potential niche distribution of S. ciliaris and S. plana under current climate conditions and to predict the impacts of projected climate change on their potential distribution in Southeast Asia. We generated future predictions under four detailed bioclimatic scenarios (ie, RCP 2.6, RCP 4.5, RCP 6.0, and RCP 8.5) over three times intervals (2030, 2050, 2080). The results showed that future climatic conditions in the SEA had been predicted to significantly disrupt the distribution of suitable habitat of S. ciliaris and S. plana, and alter their geographic distribution patterns. Although there are some areas that were predicted to become suitable habitat in the early period of future climate change, the overall projections show adverse effects of future climate conditions on the suitable habitat distribution of S. ciliaris and S. plana, as estimated losses of suitable habitat will be higher than the gains.

La revisión de una gran cantidad de ejemplares de herbario determinados como Epidendrum selaginella Schltr. que mostraban diferencias foliares evidentes comparadas con el ejemplar tipo que sirvió para describir esta especie ampliamente distribuida en Costa Rica y Panamá así como el análisis de los segmentos florales de los mismos permitieron reconocen 2 nuevas especies muy cercanas a Epidendrum selaginella y por mucho tiempo confundidas con esa especie centroamericana: Epidendrum astroselaginella y Epidendrum stenoselaginella. Se presenta una clave ilustrada

An annotated synonymic inventory of Italian Selaginella taxa, a practical key for their identification and their dot distribution
maps are presented, as a result of our work on the Selaginellaceae account for the Flora Critica d’Italia. The names Lycopodium helveticum L. and Selaginella denticulata var. platystachya Hieron. are typified.

The Selaginellaceae family includes the single genus Selaginella, which is found worldwide and comprises approximately 700 to 750 species. A number of species have been traditionally used for medicinal purposes in the whole world, and the phytochemistry of some has been investigated. For this review, the search was carried out using Web of Sciences, Chemical Abstracts and the data bank NAPRALERT (acronym for NAtural PRoducts ALERT), updated to October 2012. The references found in the search were then studied in detail. This review refers to 32 species and 130 compounds isolated from plants of the genus Selaginella, which are classified in appropriate chemical groups. The compounds isolated have been identified belonging to the classes of alkaloids, benzenoids, carbohydrates, chromones, coumarins, flavonoids, lignans, oxygen heterocycle, phenylpropanoids, pigments, quinoids and steroids. Some aspects of bioactivity of the secondary metabolites produced are discussed. For this purpos...