(28h) 
498 
creeping, with short, irregular branches 5-8 mm. long; leaves im¬ 
bricate with spreading points, ovate-acuminate, less than 1 mm. 
long; margins entire; vein ending below the apex; cells rhom- 
boidal above, transversely elongated below, not papillose ; monoe¬ 
cious ; perichetial leaves longer, erect, base long, clasping, vein 
ending below the acuminate apex; cells elongated; pedicels red, 
10-15 mm. long; capsule cylindric, 2 mm.; lid conic; annulus 
falling in fragments, narrow, single; mouth bordered by darker, 
denser cells, walls thin; peristome double, teeth long, slender, 
papillose at apex; endostome with a short basal membrane and 
slender, carinate, papillose segments, thickened at the joints, or 
appendiculate ; cilia none. 
Allied to L . gracillima Tayl., which has also been collected in 
Bolivia by Bridges, but differs in the vein ending below the apex 
and the leaves being quite smooth. Identical with no. 3185 cited 
above, which was also sent to Dr. Muller and named by him 
Psendoleskea amblystegiella n. sp., but this name is too near P 
amblystegioides C.M. from Costa Rica, Polanowsky. 
Pseudoleskea Andina Sch., mss. Prov. Larecaja, vicinius So- 
rata, 3200 metr. November, 1857 (1694), legit, G. Mandon 
“super arbores.” Sorata, 13000 ft. February, 1886 (3181). 
H.H.R. and Unduavi, 12000 ft. October, 1885 (3180) 
Plants in dense brown cushions; stems 7-9 cm. long, irregu¬ 
larly pinnate; branches .5-1.5 mm. long, slender; paraphyllia 
small, clustered, branching; leaves small, less than 1 mm., 
crowded, minute; base concave appressed, apex subulate, serru¬ 
late; vein thick, channelled, excurrent; cells rhomboidal, pa¬ 
pillose, those of the basal angles erect, rectangular and denser on 
each side of the basal folds. Perichetial leaves longer and more 
acuminate, and not papillose, outer recurved, inner sheathing, all 
pale and plicate with the vein ending below the apex. Pedicels 
straw-colored, 2 cm. long ; capsules arched, 3 mm. long, slightly 
contracted below the mouth when dry; lid mammillate; mouth 
bordered by a deep flaring rim; peristome inserted below the 
rim, double ; teeth yellow, trabeculate ; endostome yellow, seg¬ 
ments as long as the teeth, carinate, rarely divided or open along 
the keel, attached to a short, basal membrane, appendaged at the 
joints; cilia none; spores rough, .016-.021 mm. green. 
No. 3181 was named for Dr. Rusby, by C. Muller, but Schim- 
per’s name has priority. 
Thuidium Peruvianum Mitt. Near Yungas, 6000 ft. (3178), 
Unduavi, 8000-10,000 ft. October, 1885 (3179). 
