( 236 ) 
2.5 mm. in diameter: fertile plants unbranched, up to 5 cm. 
high; leaves when dry mostly abruptly spreading from the 
clasping base and incurved above, more or less linear-lanceo- 
late, serrate from a little below the middle to the acute apex, 
up to 6 mm. long andi mm. broad, with about 34 lamellae 2 
cells high on upper surface, the upper cell in cross-section of 
lamellae smooth, scarcely enlarged, nearly round; leaf blade 
and margin, of single layer of celis, extending for 8 or 10 rows 
of cells on either side of lamellae about one half down leaf; 
leaf cells in blade one half down, mostly hexagonal, about 
16 # in diameter, often slightly transversely elongated, the 
basal cells rectangular, pale, 12-16 ~ wide and 2~4 times 
longer than wide, the cells throughout leaf with scarcely or 
not thickened walls; costa with a few scattered teeth on bac 
toward apex, about 100 yw wide at base; capsule on a seta 2 
cm. high, curved, nodding, about 2.5 mm. long, mamillose 
on surface with about 5 ribs extending its entire length; per- 
istome teeth about 200 uw high and 65 » wide; lid not seen; 
calyptra ed a ‘brownish-white ; ; spores smooth, 
up to 12 «in dia 
Palamos near oe 7oo meters, June 13, 1902 (1925). 
This species belongs near P. /ax¢fol/um Besch. but is a much 
more slender plant with thinner cell-walls in the leaves. 
POGONATUM POLYCARPUM (Schimp.) Broth. 
Pelichuco, 3300 meters, May 1,1902(2840). Near Sorata 
2500 meters, Sept. 27, 1902 (1928). 
PoLyTrRicHUM ANTILLARUM Rich. 
Near Aten, 1850 meters, Aug. 7, 1902 (1924): these speci- 
mens, growing in a uniformly wet, shady place, have stems 
up to38cm.high. Sorata, 2400 meters, Sept. 3, 1901 ea 
growing in a dry exposed locality with stems 2 cm. high. 
Pelichuco, May 2, 1902 (2838) at 3300 meters. Tolapampa, 
3600 meters, Sept. 25, 1902 (1932). Rio Tuichi, April 27, 
1902 (2836). I believe P. arist:florum Mitt. cannot be dis- 
tinguished from the above. 
HEDWIGIA ALBICANS (Web.) Lindb. 
Near Pelechuco, 3000 meters, April 30, 1902 (2850). 
HEDWIGIDIUM IMBERBE (Sm.) Bry. Eu. 
Above La Paz, 3600 meters, Aug. 24, 1901 (2819). Ingenio, 
