Hypnum revolutum var. ravaudii

(Boulay) Ando

Lindbergia 8: 62. 1982.

Basionym: Hypnum ravaudii Kindberg Fl. Crypt. Est, Musc., 267. 1872 (as ravaudi)
Synonyms: H. filiforme H. revolutum var. dolomiticum Mönkemeyer
Treatment appears in FNA Volume 28. Treatment on page 547. Mentioned on page 546.

Plants relatively small. Stems 2–3(–5) cm, regularly pinnate, branches 0.2–0.5+ cm. Stem leaves broadly ovate-oblong, not plicate, 0.5–1 mm; margins plane or sometimes revolute basally; costa less distinct; medial laminal cells 25–40 × 4 µm.

Phenology: Capsules mature Jul–Sep.
Habitat: Open sites, earth, rock faces, epiphytic on tree bases, logs in forest
Elevation: moderate to high elevations


V28 852-distribution-map.gif

Alta., B.C., Colo., Europe, e Asia, Antarctica.


Distribution for variety ravaudii is based on that given by H. Ando (1973), but it is doubtless infrequently scattered through the range of the species, producing sporophytes in summer. The variety is troublesome to determine because of its lack of the characteristic revolute leaf margins (except sometimes near the base), and the costa is difficult to discern.

Selected References


Lower Taxa

Wilfred B. Schofield† +
(Boulay) Ando +
Hypnum ravaudii +
Alta. +, B.C. +, Colo. +, Europe +, e Asia +  and Antarctica. +
moderate to high elevations +
Open sites, earth, rock faces, epiphytic on tree bases, logs in forest +
Capsules mature Jul–Sep. +
Illustrated +
H. filiforme +  and H. revolutum var. dolomiticum +
Hypnum revolutum var. ravaudii +
Hypnum revolutum +
variety +