Trichomanes polypodioides

Kessler, Michael & Smith, Alan R., 2017, Prodromus of a fern flora for Bolivia. X. Hymenophyllaceae, Phytotaxa 328 (3), pp. 201-226 : 221

publication ID	https://doi.org/10.11646/phytotaxa.328.3.1
persistent identifier	https://treatment.plazi.org/id/1D5B787C-FFBC-264D-1D8B-861AFEF1FEB2
treatment provided by	Felipe
scientific name	Trichomanes polypodioides
status

Treatment

Trichomanes polypodioides View in CoL L., Sp. Pl. 1098. 1753.

= Trichomanes polypodioides L. var. incisum Farw., Amer. Midl. Naturalist 12: 247. 1931.

= Trichomanes sinuosum Rich. ex Willd., Sp. Pl. , ed. 4 (Willdenow), 5: 502. 1810.

Range: —Antilles; southern Mexico to Bolivia (BE, CO, LP), Brazil, and Uruguay.

Ecology: —Fairly common; epiphytic low on tree trunks, rarely on earth banks, in humid forests; 200–1700 m.

Notes: —Small specimens may be mistaken for species of Didymoglossum (e.g., D. reptans ) but differ by lacking false veins and by having few (vs. dense, blackish) rhizoids on the rhizomes.

Trichomanes polypodioides is closely related to T. anadromum Rosenst. , type from southeastern Brazil. The latter species ranges northward to Costa Rica and Panama and southward into northeastern Argentina; it has been occasionally been attributed to Bolivia, in identifications ( Rusby 138, NY, UC), but this gathering is T. polypodioides . In T. anadromum the sori are positioned on the acroscopic sides of the pinnae ( vs. also apically in T. polypodioides ), and the venation in individual pinnae is anadromous, as the epithet suggests ( vs. catadromous or sometimes isodromous in T. polypodioides ).