Didymoglossum differs from other trichomanoid ferns by the absence of roots, pubescent lamina margins (dark hairs simple, paired or stellate), and presence of unconnected, parallel false veins. The black hairs on the rhizome are specialized for adhesion to the substrate, branching when they touch the surface. The diverse nature of the fronds, from orbicular to narrowly cuneate proximally, and the marginal orbicular scales distinguish D. membranaceum.
Collection Data (F.B. Matos 1511)
Classification & Common Names
- Class: Polypodiopsida
- Family: Hymenophyllaceae
- Genus: Didymoglossum Desv.
- Species: Didymoglossum membranaceum (L.) Vareschi
- Var./Subsp.:
- Common name(s):
General Collection Data
- Date: 05-II-2008
- Primary Collector & #: F.B. Matos 1511
- Collection Party: C. Carollo, L. Bittencourt & L. Rocha
- Det. History: F.B. Matos, V.2010
- Habitat: Primary Forest
- Habit: Lithophyte
- Specimen Locations: UPCB
Additional Comments
Collection Location
- Location: Morne Trois Pitons National Park, Trafalgar Falls – – – – Dominica.
- Coordinates: 15.316667, -61.316667
- Elevation: 800 m