Fissidens hymenodon Besch.

Bruggeman-Nannenga, Maria Alida, 2025, Notes on African Fissidens, including F. colliculosus Brugg. - Nann., sp. nov., F. sciophyllus subsp. capeverdensis subsp. nov. and F. pellucidus var. ripensis comb. nov., stat. nov., Cryptogamie, Bryologie 20 (3), pp. 15-33 : 22-24

publication ID	https://doi.org/10.5252/cryptogamie-bryologie2025v46a3
persistent identifier	https://treatment.plazi.org/id/03A3AD0F-FF8E-FFED-A3A1-F918FD05FDE5
treatment provided by	Plazi
scientific name	Fissidens hymenodon Besch.
status

Treatment

Fissidens hymenodon Besch. View in CoL

Annales des Sciences Naturelles, Botanique, série 7, 2: 85. ( Bescherelle 1885). — Lectotype (designated here): Mayotte • Marie 206 (partly unreadable): BM [ BM000871897 ]; isolectotypes: MNHN [ PC0129799 ].

Fissidens alomoides Müll.Hal. ex Dusén, Kongliga Svenska Vetenskaps Academiens Handlingar 28(2): 10, 11: f. a-b, pl. II, f. 3. ( Dusén 1895). — Lectotype (designated here): Cameroon • Dusén; Musci Afr. Camerunia nr. 505; S[B107445]; isolectotypes: H-BR, MNHN[PC0029441] and S[B107447, B107448, B107449, B107450], syn. nov. Isotypes have been distributed as: Musci Africani in Camerunia a P. Dusén collecti 505 (also miswritten as 305).

DESCRIPTION

Fissidens hymenodon is a corticolous species that is characterized by oblong to oblong-lanceolate leaves with broadly acute to obtuse, often rounded apices, apex not terminated by a pointed cell, costae ending 2-6 cells below the apex, limbidia restricted to the upper leaves of perichaetial leaves, 1-2 papillose laminal cells and scariosus-type peristomes.