Flora of North America species comparison

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Crumia latifolia

wideleaf crumia moss
Stems

sparsely radiculose; rounded-pentagonal in section.
Leaf

with costal abaxial cells elongate.
Seta

reddish brown in color, ca. 1.4 mm, twisted clockwise below, counterclockwise above.
Capsule

with reddish brown theca, peristome teeth of 7 articulations held together by a hyaline membrane.
Calyptra

ca. 3 mm.
Sporophytes

1(–2) per perichaetium.

Crumia latifolia
Phenology Sporophytes mature spring–summer (May, Jun, Jul).
Habitat Limestone, calcareous shale, siliceous and conglomeritic rock, roadbank, wet areas
Elevation low to moderate elevations (5-1200 m) (low to moderate elevations (0-3900 ft))
Distribution
from FNA
AZ; CA; MT; OR; UT; WA; BC
[WildflowerSearch map]
Discussion

Often locally abundant, Crumia latifolia is sometimes reddish orange in exposed situations. The morphology and ecology of this species are discussed at length by S. Flowers (1973), W. B. Schofield (1966), and A. J. Grout (1928–1940, vol. 1). There is great variation in the thickness and color of the laminal cell walls, possibly correlated with degree of exposure. It has been found in fruit in British Columbia and two stations in California.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 27, p. 640.
Parent taxa Pottiaceae > subfam. Pottioideae > Crumia
Synonyms Merceya latifolia, Scopelophila latifolia
Name authority (Kindberg) W. B. Schofield: Canad. J. Bot. 44: 610. (1966)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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