( 369 ) 
nearly straight walls; peristome single, of distant, narrowly 
lanceolate, erect teeth with rather distant arti culations, a 
istinct, not zigzag median line and finely papillose on 
the outer face; no annulus or lid found; calyptra (immature) 
arte with long, slender, mostly erect hairs; spores 8-10 u 
in diameter 
Sax river, Ni alante, 550 meters elev., on log, Feb. 1905 
(2387). (Plate 173.) 
TrisMEGISTIA Korruatsi (C. M.) Broth. 
Mt. Apo, 2000 meters, March 1905 (2667). 
IsopTERYGIUM ALBESCENS (Schw.) Jaeg. 
Baguio, 1570 meters, on bark and old logs, Sep.—Nov. 
1904 (1705, 1712, 1730, 1741). 
IsopTERYGIUM ARQUIFOLIUM (Lac.) Jaeg. 
Lamao river, on earth along stream, 75 meters, Nov. 
1903 (868); Lamao river, on wet rock, 110 meters, Dec. 
1903 (867). 
IsopTERYGIUM BANCANUM (Lac.) Jaeg. 
Lamao river, 60 meters, on bark, Dec. 1903 (862). 
IsOPTERYGIUM LONGICAULE Broth. 
Lamao river, 65 meters, on rock, Nov. 1903 (871). 
Isopterygium saxense sp. nov. 
Dioicous, the male flowers abundant on both stems and 
creeping bearing scattered ek fr aeeernae 
what thick-walled outer cells; stem-leaves about 1 mm. 
long and one fourth mm. wide, ecostate, rather broadly 
lanceolate, tapering to a slender, nearly entire or slightly 
serrulate point, the branch-leaves smaller, much shorter 
and broadly pointed, more serrulate, at the apex of the 
branches only about one half mm. long; leaf-cells quite 
uniform, the median 5-6 » wide and 40-50 p long, the alar 
not differentiated; perichaetial leaves long-lanceolate, the 
slender, serrulate point more or less spreading-flexuous, 
the inner leaves nearly 2 mm. long; seta 12-14 mm. long; 
capsule nodding or lean ce bee scarcely I mm. 
