Elaphoglossum flaccidum (Fée) T.Moore, Index Fil.

Kessler, Michael, Moran, Robbin C., Mickel, John T., Matos, Fernando B. & Smith, Alan R., 2018, Prodromus of a fern flora for Bolivia. XXXV. Dryopteridaceae, Phytotaxa 353 (1), pp. 448-450 : 448-450

Elaphoglossum flaccidum (Fée) T.Moore, Index Fil. 356. 1862. ( Fig. 47A–D )

Range: —Antilles; Guianas, Venezuela and Colombia to Bolivia (CO, LP).

Ecology: —Fairly common; epiphytic in humid forests, to 1500(–1750) m.

Notes: —The laminae typically dry blackish. Most similar to E. nigrescens , but that species has abundant glandular dots on the abaxial blade surfaces, and minute scales with acicular teeth near the laminar margins. Elaphoglossum flaccidum is more thin-textured than E. glabellum and has more widely spaced veins. Its vein tips are expanded laterally and often united.

Figures

FIGURE 47. A–D. Elaphoglossum flaccidum (Moran 6272, NY, from Ecuador). A. Habit. B. Rhizome scale. C. Petiolar scale. D. Abaxial blade detail. E–M. Elaphoglossum litanum (Fay & Fay 2767, NY). E. Habit. F. Rhizome scale. G. Abaxial petiole detail. H. Adaxial petiole detail. J. Petiolar scale. K. Adaxial blade detail. L. Abaxial blade detail. M. Adaxial blade detail. N–P. Elaphoglossum obtusum (Anderson 11818, NY). N. Habit. O. Abaxial blade detail. P. Rhizome scales.—Scale bars for habit = 5 cm, all other scale bars = 1 mm.