(246 ) 
1902, on decayed log (1960). ‘These specimens have flowers 
autoicous or sometimes synoicous, they seem to differ some- 
what also in having rather longer, more slender-pointed peri- 
chaetial leaves than are found in West Indian specimens. 
CycLopicTYON HUMILE (Mitt.) Broth. 
Isapuri, 450 meters, on decayed log and rock, Oct. 19, 
1g0i (1959). San Buena Ventura, on rock, I90 meters, 
Nov. 15, 1901 (2065). San Juan, 975 meters, March 22, 
1902, on old log (1958). 
CYCLODICTYON AERUGINOSUM (Mitt.) Broth. 
Near Aten, 1050 meters, on rock, Aug. 3, 1902 (1952). 
Isapuri, 450 meters, Sept. 17, 1901 (1955). 
CALLICOSTELLA RIVULARIS (Mitt.) Broth. 
Isapuri, Sept. 27, 1901, on rock (2882). These speci- 
mens should, perhaps, be referred elsewhere. They are 
rather larger, more yellowish, with somewhat narrower leaves 
than the specimens of rzvularzs I have seen. 
CALLICOSTELLA PALLIDA (C. M.) Jaeg. 
Tumupasa, 430 meters, Jan. 8, 1902, on old log (1954). 
Apolo, 1500 meters, June 28, 1902, in wet places on earth 
(1950). Charopampa, Rio Mapiri, 460 meters, Sept. 23, 
1g0r, on log (1956). 
CALLICOSTELLA SCABRIUSCULA (C. M.) Jaeg. 
Tumupasa, 430 meters, on damp sand and roots of trees, 
Jan. 20, 1902 (2063). 
CALLICOSTELLA MICROCARPA (Hornsch.) Jaeg. 
Near Aten, 912 meters, on wet rock, June 18, 1902 (1951). 
HooKkERIOPSIS VARIABILIS (Hornsch.) Jaeg. 
Tumupasa, 430 meters, on wet, overhanging rock wall, 
Dec. 12, 1901 (2096). 
Hookeriopsis longiseta sp. nov. 
Autoicous: in low, loosely spreading mats, with lax stems 
and irregular branches about 1 cm. long and 2 mm. broad 
