Gemmabryum exile

(Dozy & Molkenboer) J. R. Spence & H. P. Ramsay

Phytologia 87: 67. 2005.

Basionym: Bryum exile Dozy & Molkenboer Ann. Sci. Nat., Bot., sér. 3, 2: 300. 1844
Synonyms: Brachymenium exile (Dozy & Molkenboer) Bosch & Sande Lacoste
Treatment appears in FNA Volume 28. Treatment on page 135. Mentioned on page 132, 133.

Plants green to yellow-green. Stems 0.5–1(–2) cm, slender, stringlike when dry, evenly foliate. Leaves folded adaxially along costa around stem when dry, ovate, weakly to strongly concave, 0.4–1(–1.5) mm; margins plane; apex broadly acute-rounded; costa percurrent to short-excurrent, apiculus occasionally present; proximal laminal cells abruptly quadrate, 1:1; medial and distal cells 8–12(–14) µm wide, (3–)4–5:1. Specialized asexual reproduction by leaf axil bulbils, bulbils 1 or 2 per axil, rounded, 200–750 µm, primordia present, leafy, arising from near base or mid bulbil, and by rhizoidal tubers, brown, spheric, 100–200 µm, cells smooth. [Capsule erect, red-brown, 1–2(–3) mm; hypophysis thick, rugose; peristome strongly reduced; endostome not or occasionally partly adherent to exostome, basal membrane low, segments reduced, split, perforations absent, cilia absent].

Habitat: Concrete, rock
Elevation: low elevations (0-10 m)


V28 212-distribution-map.gif

Fla., N.Mex., West Indies, Central America, South America, se Asia, Africa, Pacific Islands, Australia.


Gemmabryum exile is one of the most distinctive and easily identified species in the genus, with very slender stringlike stems and small infolded leaves that are ovate with plane margins.

Selected References


Lower Taxa

... more about "Gemmabryum exile"
John R. Spence +
(Dozy & Molkenboer) J. R. Spence & H. P. Ramsay +
Bryum exile +
Fla. +, N.Mex. +, West Indies +, Central America +, South America +, se Asia +, Africa +, Pacific Islands +  and Australia. +
low elevations (0-10 m) +
Concrete, rock +
Illustrated +
Brachymenium exile +
Gemmabryum exile +
Gemmabryum sect. Gemmabryum +
species +