(Brotherus) M. Fleischer

Musc. Buitenzorg 4: 1158. 1923.

Etymology: Greek pilos, felted hairs, and -ion, diminutive, alluding to rhizoids
Basionym: Stereophyllum sect. Pilosium Brotherus in H. G. A. Engler and K. Prantl, Nat. Pflanzenfam. 227/228[I,3]: 899. 1907
Treatment appears in FNA Volume 28. Treatment on page 472. Mentioned on page 470, 644.

Plants in dense mats, yellowish green, glossy. Stems with central strand absent; axillary hair apical cells 3. Stem and branch leaves differentiated, somewhat stiff, close, wide-spreading, somewhat curled when dry, curled downward when moist, dorsal leaves oblong-ovate, symmetric, not plicate; margins plane, entire to serrulate, especially distally; apex obtuse to short-acute; ecostate; laminal cell walls thin; medial and distal cells linear, smooth; lateral leaves oblong-lanceolate, cultriform, costa present, rarely to 1/3 leaf length. Perigonia with leaves ecostate. Perichaetia scattered along stems, often in pairs, leaves ovate to lanceolate, ecostate, laminal cells linear. Seta orange-red, straight. Capsule cernuous, orange-red, short-cylindric; exothecial cell walls collenchymatous; annulus undifferentiated; operculum short-rostrate; exostome teeth not shouldered, internal surface projecting; endostome papillose, basal membrane high, segments shorter than exostome teeth, cilia single, shorter than segments. Spores spheric, 7–9 µm.


N.C., se Mexico, West Indies, Central America, n South America.


Species 1.

Selected References


... more about "Pilosium"
William R. Buck +  and Robert R. Ireland Jr. +
(Brotherus) M. Fleischer +
Stereophyllum sect. Pilosium +
N.C. +, se Mexico +, West Indies +, Central America +  and n South America. +
Greek pilos, felted hairs, and -ion, diminutive, alluding to rhizoids +
Musc. Buitenzorg +
Pilosium +
Stereophyllaceae +