( 130) 
Tacacoma, 3000 meters, June 10, 1902, on trees (1837); 
Sorata, 2700 meters, September 3, 1901, on trees (1838). 
ORTHOTRICHUM APICULATUM Mitt. 
Sorata, 2700 meters, September 3, 1901, on trees (2888). 
Macromitrrium Dipymopon Schwaegr. 
Near Apolo, 1800 meters, on trees, July 25, 1902 (1818). 
MACROMITRIUM MACROTHELE C. Miill. 
Near Atten, 1650 meters, on trees, June 19, 1902 (1817). 
MAcROMITRIUM OBTUSUM Mitt. 
Isapuri, 450 meters, on trees, October 2, 1901 (1828). 
MACROMITRIUM TUMIDULUM Mitt. 
Near Tumupasa, 900 meters, on wood, December 3, 1901 
(1831); Santa Cruz, 1500 meters, on rock, April 24, 1902 
(2755). These specimens agree with Spruce no. Io1, the 
only collection cited, but differ from Mitten’s description in 
having a distinctly ribbed capsule, a double peristome and 
pedicels about 12 mm. long. 
Macromitrium Swarnsont (Hook.) Brid. 
New Brazil, 1500 meters, June 14, 1902 (1819). These 
specimens are near those called AZ. Swainsond from Herb. 
Gardner, Brazil, 1840. The upper leaf-cells are small and 
round, the lower elongated, in the margin at base one row 
becoming hyaline and more or less highly papillate-toothed ; 
peristome low, apparently simple. 
MACROMITRIUM STELLULATUM (Hornsch.) Brid. 
Tumupasa, 540 meters, on trees, December 16, 1901 (1830). 
There is a double peristome in these specimens, the inner of 
lanceolate segments nearly as high as the outer; leaves be- 
low without border. Evidently not the species figured as M. 
stellulatum in Engler & Prantl, which has a distinct, broad 
border below and is much like J. Weir no. 141, cited by 
Mitten under AZ, Swainson’, but apparently neither that nor 
M. stellulatun. 
Macromitrium subdiscretum sp. nov. 
Pseudautoicous. In compact tufts up to 3 cm. high: stems 
creeping, with branches densely radiculose below and branch- 
