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Fissidens bryoides var. pusillus (Wilson) Pursell Search in NYBG Virtual HerbariumSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenAfrican Plants, Senckenberg Photo GallerySearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font
 

Published In: Monographs in Systematic Botany from the Missouri Botanical Garden 49: 51. 1994. (Monogr. Syst. Bot. Missouri Bot. Gard.) Name publication detail
 

Project Name Data (Last Modified On 3/22/2011)
Acceptance : Accepted
Project data     (Last Modified On 3/23/2011)
Discussion: Fissidens bryoides, sensu lato, consists of a number of intergrading expressions. The variety pusillus is one of these and is recognized by its more or less aquatic habitat and obtuse leaves with costa and limbidium that ends below the apex. The limbidium ends above the leaf insertion and in the lower leaves is often lacking from the ventral and dorsal laminae.
Illustrations: Bruggeman-Nannenga (1982, Fig. 5 a–c, f); Crum and Anderson (1981, Fig. 45 D, E).
Habitat: On silicious rocks and limestone along streams; ca. 900 m.
Distribution in Central America: HONDURAS. Comayagua: Allen 11746 (MO); Cortés: Allen 14387 (MO); Olancho: Allen 12802 p.p. (MO). PANAMA. Chiriquí: Salazar et al. 5140 (PAC, PMA).
World Range: North-Central, Northeastern, South-Central, and Southeastern U.S.A.; Mexico; Central America; Northern, Southwestern, Middle, Southeastern, and East Europe; Japan.

 

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Fissidens bryoides Hedw. var. pusillus (Wils.) Pursell, comb. nov. F. viridulus, (Schwägr.) Wahlenb. var. pusillus Wils., Bryol. Brit. 303. 1855. F. pusillus(Wils.) Milde, Bryol. Siles. 82. 1869. F. viridulus subsp. pusillus (Wils.) Kindb., Eur. N. Amer. Bryin. 2: 170. 1897. Type. England, Lancastershire, Hill Cliff Dingh, Wilson s.n. (BM).

Plants 3–9 mm × ca. 1.5 mm. Leaves 0.7–2 mm × 0.2–0.3 mm; apex obtuse to broadly acute; margins limbate, more or less entire, limbidium ceasing below the apex and above base of dorsal laminae; vaginant laminae more or less 1/2 the leaf length, unequal, acute; costa ceasing a few cells below apex; cells irregularly quadrate to irregularly hexagonal, (6–)8–10(–13) µm long, smooth to slightly bulging. Sporophytesterminal.
 

 

 
 
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