Acaulon muticum var. rufescens

(A. Jaeger) H. A. Crum

Bryologist 72: 240. 1969,

Basionyms: Acaulon rufescens unknown Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1868–1869: 77. 1869
Treatment appears in FNA Volume 27. Treatment on page 639. Mentioned on page 638.
Plants yellow- to red-brown in nature. Spores variably low papillose-punctulose or smooth.

Phenology: Capsules mature late fall to early spring.
Habitat: Soil, gravel pit, pasture, lawn
Elevation: low to moderate elevations


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B.C., Ont., Que., Sask., Ariz., Calif., Fla., Ill., La., Md., Mich., Miss., Mo., Nebr., N.J., N.Y., Okla., Oreg., S.C., Tex., Wis., Mexico.


A specimen of </i>var.<i> rufescens from New Jersey (Austin 51, UBC) is reddish and has small (ca. 20 µm), round, weakly papillose spores; generally, spore size is not a good character. Another specimen, with large (38–40 µm), round, punctulate spores, is piebald with adherent granules similar to the papillae of </i>var.<i> muticum. One specimen placed here (California, Santa Clara County, Stanford University, W. Schofield 5724, Feb. 23, 1955, UBC), is rather immature, has a greenish cast and smooth, elliptic spores about 28-30 µm.



Lower Taxa

No lower taxa listed.