Elaphoglossum pattersoniae
Elaphoglossum pattersoniae is a very rare species of fern that is native to Peru and Bolivia.[1] It is very close to E. guamannianum, but is smaller in size, its blade apex is acute-obtuse, it lacks dark arachnidoid scales on its abaxial costa and has fewer blade scales.[2] It is named after Juliet Patterson, a New York Botanical Garden collaborator.
| Elaphoglossum pattersoniae | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Class: | Polypodiopsida |
| Order: | Polypodiales |
| Suborder: | Polypodiineae |
| Family: | Dryopteridaceae |
| Genus: | Elaphoglossum |
| Species: | E. pattersoniae |
| Binomial name | |
| Elaphoglossum pattersoniae Mickel[1] | |
Description
Its rhizome is compact and horizontal; its scales linear and a lustrous red-brown in colour, about 4 millimetres (0.16 in) in size. Phyllopodia are present, with fasciculate fronds which are between 6 and 16 centimetres (2.4 and 6.3 in) long and between 1.2 and 1.8 centimetres (0.47 and 0.71 in) broad. Its scales are between 1 and 2 millimetres (0.039 and 0.079 in). Its veins are at a 55-60° angle, and hydathodes are lacking.[2] Its costal scales are of an orange-tan colour and it lacks intersporangial scales.
References
- Hassler, Michael & Schmitt, Bernd (January 2020), "Elaphoglossum pattersoniae", Checklist of Ferns and Lycophytes of the World, Version 8.20, retrieved 2020-01-30
- Mickel, John T. "Three new species of Elaphoglossum from Peru." American fern journal 80.3 (1990): 110-112.