Dracoglossum
| Dracoglossum | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Polypodiophyta |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Suborder: | Polypodiineae |
| Family: | Lomariopsidaceae |
| Genus: | Dracoglossum Christenh. |
| Species | |
Dracoglossum is a small genus of ferns in the family Lomariopsidaceae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I).[1] It is native to the Neotropics of the Americas.
Taxonomy
[edit]Dracoglossum was originally treated in Tectaria, but is not related and was therefore placed in the family Dryopteridaceae. It appears to be most closely related to the genus Lomariopsis.[2] Molecular evidence has confirmed this placement and it is now firmly placed in family Lomariopsidaceae, with which it shares characters of habit and stelar structure.[1][3]
Species
[edit]As of February 2020[update], the Checklist of Ferns and Lycophytes of the World and Plants of the World Online recognized two species:[4][5]
- Dracoglossum plantagineum (Jacq.) Christenh. — Central America, the Lesser Antilles, Puerto Rico, and sub-Andean South America
- Dracoglossum sinuatum (Fée) Christenh. — the Guianas and coastal Ecuador
The species differ in the presence or absence of an indusium covering each of their sori. Dracoglossum has a creeping rhizome. The leaves are simple and proliferate by vegetative buds (leaf buds) at the apex.
References
[edit]- ^ a b PPG I (2016), "A community-derived classification for extant lycophytes and ferns", Journal of Systematics and Evolution, 54 (6): 563–603, doi:10.1111/jse.12229, S2CID 39980610
- ^ Maarten J.M. Christenhusz. 2007. "Dracoglossum, a new Neotropical fern genus (Pteridophyta)". Thaiszia Journal of Botany 17:1-10. (See External links below).
- ^ Christenhusz, Maarten J.M.; Jones, Mirkka; Lehtonen, Samuli (2013). "Phylogenetic placement of the enigmatic fern genus Dracoglossum". American Fern Journal. 103 (2): 131–138. doi:10.1640/0002-8444-103.2.131. S2CID 85744608.
- ^ Hassler, Michael & Schmitt, Bernd (January 2020), "Dracoglossum", Checklist of Ferns and Lycophytes of the World, Version 8.20, archived from the original on 2017-09-02, retrieved 2020-02-03
- ^ "Dracoglossum Christenh.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2020-02-03
External links
[edit]- Dracoglossum Archived 2012-04-04 at the Wayback Machine In: Thaiszia Journal of Botany At: Databases and Publications At: Univerzita Pavla
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