(118 ) 
leaves only two thirds as long and wider above, with larger 
leaf-cells and thicker cell-walls. 
TRICHOSTOMUM CHILENSE Mont. 
Santa Cruz, 1500 meters, August 24, 1902 (1791); Peli- 
chuco river, April 28, 1902, 2100 meters (2870); Sorata, 
2250 meters, June 6, 1902 (1790). 
TORTELLA CAESPITOSA (Schwaegr.) Limpr. 
Asila, near Apolo, 1140 meters, April 8, 1902 (1797). 
Barbula Germainii C. Miill., from Bolivia, seems to belong 
here, the specimens being simply rather undersized. 
LEPTODONTIUM SULPHUREUM (C. Miill.) Mitt. 
Paradiso, San José-Apolo trail, 1200 meters, February 12, 
1902 (2129). 
LEPTODONTIUM LUTEUM (Tayl.) Mitt. 
Pelichuco river, 2300 meters, April 28, 1902 (2848). 
LEPTODONTIUM GRACILEscENS (C. Miill.) Par. 
High hills back of Mollendo, Peru, August 5, 1901 (2884). 
In these specimens the cells of lower leaf differ somewhat 
from the Bolivian specimens and possibly should not be 
referred here. 
LEPTODONTIUM GRIMMIOIDES (C. Mill.) Par. 
Ingenio, 3000 meters, September ro, 1go1 (1801). These 
specimens are taller, with leaves more erect and less yellowish 
above than in Sorata specimens. The costa is smooth on the 
back also, and the leaf-cells less obscure above and more 
yellow at base. My specimens are dioicous, up to 7 cm. 
high, with seta 1 cm. high, a slightly curved, cylindrical 
capsule about 2 mm. long, the lid one third as long and teeth 
of peristome irregular, often split one half down or more. 
Hyophila Peruviana sp. nov. 
Monoicous, antheridia clustered at one side of perichaetium 
or a little below, enclosed in two broadly ovate leaves. Plants 
high: stem-leaves crispate when dry, erect-spreading when 
moist, ovate-lanceolate, acute, keeled above, flat or slightly 
reflexed on margin, smooth, entire, up to 2.25 mm. long, the 
