Fig 15 - uploaded by Leon Perrie
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Lycopodiella cernua. Close-up of aerial branches showing incurved leaves and immature, sessile, green strobili.
Source publication
Lycopodiaceae is a large, cosmopolitan family that has its greatest diversity in humid montane forests and alpine areas of tropical regions, but also extends into the temperate zones. It is represented in New Zealand by five indigenous genera (Huperzia, Lycopodiella, Lycopodium, Phlegmariurus and Phylloglossum) and 12 species, of which only Phlegma...
Citations
... case of Lycopodiaceae, for example, two to seventeen genera can be recognized (Burnard & al., 2016;Field & al., 2016, PPG I, 2016Brownsey & Perrie, 2020;Chen & al., 2021). An approach with fewer genera in Lycopodiaceae has, among other aspects, been justified based on morphology. ...
... An approach with fewer genera in Lycopodiaceae has, among other aspects, been justified based on morphology. Brownsey & Perrie (2020) argued, for example, that within the lycopodioid clade morphological support for recognizing some of the smaller segregated genera of Lycopodium s.l., as accepted in PPG I (2016), is weak and based on obscure characters. They therefore only recognized Lycopodiella Holub. ...
A rebuttal to the proposal to conserve Selaginella , nom. cons., with a conserved type is submitted. We further discuss why this proposal is unwarranted and disruptive to nomenclatural stability as is the intention to split Selaginella since potentially segregated genera fail to reconcile monophyly and taxonomic diagnosability. Accordingly, we recommend the rejection of the Proposal (2943) and not to follow the dismembering of Selaginella .
... Carbon skeleton of Fawcettimine alkaloid exhibiting carbinolamine form (1a) and the keto-amine form (1b). Another analogue is fawcettidine(2). ...
The Southern Islands Vascular Flora (SIVFLORA) dataset is a globally significant, open-access resource that compiles essential biodiversity data on vascular plants from islands across the Southern Ocean. The SIVFLORA dataset was generated through five steps: study area delimitation, compiling the dataset, validating and harmonizing taxonomy, structuring dataset attributes, and establishing file format and open access. Covering major taxonomic divisions, SIVFLORA offers a comprehensive overview of plant occurrences, comprising 14,589 records representing 886 species, 95 families, and 42 orders. This dataset documents that 58.62% of the taxa are native, 9.61% are endemic, and 31.77% are alien species. The Falkland/Malvinas Archipelago, the most species-rich, contrast sharply with less diverse islands like the South Orkney Archipelago. SIVFLORA serves as a taxonomically harmonized, interoperable resource for investigating plant diversity patterns, ecosystem responses to climate change in extreme environments, island biogeography, endemism, and the effects of anthropogenic pressures on Southern Ocean flora.
Lycopodiaceae are one of the oldest lineages of any living vascular plants and contain about 400 species distributed on all continents except Antarctica, with its highest diversity in tropical regions. Previous studies on the morphology, anatomy, and molecular systematics of Lycopodiaceae have made substantial progress in understanding the diversity and evolution of the family, but major issues remain. In particular, earlier studies had relatively sparse taxon sampling, some critical relationships among the genera have not been well resolved, and the monophyly of some genera (e.g., Huperzia, Lycopodiella, Pseudolycopodiella, Spinulum) has not been robustly tested with large sampling. In this study, we apply maximum likelihood, maximum parsimony, and Bayesian inference to a dataset of 1150 (918 newly generated) DNA sequences of seven plastid markers (atpA, psbA‐trnH, rbcL, rps4, rps4‐trnS, trnL, trnL‐F) of 334 accessions representing ca. 155 (ca. 39% of all) species in the family to infer a global phylogeny. Our major results include: (1) the tree is resolved into three primary clades corresponding to the three subfamilies, Huperzioideae, Lycopodioideae, and Lycopodielloideae; (2) these three primary clades are resolved into 17 major clades, of which 16 represent genera recognized in the PPG I classification, while Lycopodiella serpentina is resolved as sister to Palhinhaea, and thus a new genus, Brownseya, is described, and a key to genera of Lycopodielloideae is given; (3) Phylloglossum is strongly or moderately supported as sister to Phlegmariurus in ML and MP analyses (but not in BI analysis), and thus our evidence supports the recognition of Phlegmariurus in order to maintain a monophyletic Huperzia; (4) Lycopodiella is sister to Pseudolycopodiella and they together are sister to Lateristachys + (Brownseya + Palhinhaea); (5) Huperzia, Lycopodiella, Pseudolycopodiella, and Spinulum are each strongly supported as monophyletic; (6) spore morphology is well consistent with the phylogenetic relationships in the family; and (7) based on these results we recognize 17 genera in three subfamilies in the family.
