(117) 
to about 8 wide and 304 long: seta pale, up to 12 mm. 
high; capsule oval, 1 mm. long, distinctly furrowed when 
dry, with an obliquely rostrate lid three fourths as long; 
exothecal cells about mouth small, often slightly transversely 
elongated, in 3 or 4 rows, lower becoming much larger and 
rather irregular, up to 35 4 wide and 40-60 # long ; peristome 
of regular, solid, papillose, red teeth, narrowly lanceolate- 
acuminate, extending 0.2 mm. above the mouth; annulus 
none; calyptra cucullate, split one half up: spores slightly 
roughened, up to 16 # in diameter. 
Consata, 1200 meters, June 13, 1902 (2883). 
This species is near W. viriduda, but that has a less regular 
peristome only one half as high, a narrow annulus and leaves 
rather broader with leaf-cells more obscure in upper leaf. 
WEISIA VIRIDULA (L.) Hedw. 
Apolo, 1440 meters, July 10, 1902 (1851). 
Gyroweisia Boliviana sp. nov. 
Dioicous; male plants branching, with often 4 or 5 anther- 
rarely 10 mm. high: lower leaves small, ovate-lanceolate, 
acutish, upper larger, entire, mostly obtuse, up to 1.5 mm. 
long, mammillose on both sides but most distinctly along and 
near costa on back toward apex; leaf-cells distinct above, 
rounded or oblong, up to about 8 » wide and 12 » long, with 
somewhat thickened walls, all brownish, becoming paler but 
not hyaline below, with cells more or less rectangular, up to 
10 # wide and 30 # long toward costa; costa vanishing below 
apex: seta up to 13 mm. high; capsule erect, oblong, 1 mm. 
long, with conical, obliquely beaked lid two thirds as long or 
more; annulus scarcely distinct or of a single row of cells 
breaking away irregularly; peristome-teeth pale, papillose, 
very irregular, scarcely extending above the mouth or longer 
and sometimes divided above, or the rounded articulations 
broader than below; calyptra almost cylindrical, slightly 
split up on one side: spores smoothish, up to 12 y in 
diameter. 
La Paz, on clayey soil, 3450 meters, May 26, 1902 (1785); 
Sorata, 2250 meters, September 2, 1901 (1786); Yura, 
2550 meters, on rock, August 11, Igor (2868). These 
specimens are in habit much like G. Lrndrgi? but have 
