I Fioni the Hriim IN OP THE ToRRKY liiri anicai. Club, 4a: 571-577. 13 N 1915.] 



Mosses of the Philippine and Hawaiian Islands collected by the late 



John B. Leiberg 



R. S. Williams 



PHILIPPINE SPECIES 



Trematodon capillipes C. Miill. Luzon: Mariveles Mountain, 

 1267. 



Dicranella {AnisoDiecium) Leibergii sp. nov. 



Growang in rather soft, not very compact, brownish green 

 mats; stems short, 4-5 mm. long and simple or sometimes with a 

 single branch up to i cm. long; leaves laxly spreading-flexuous, 

 narrowly lanceolate, up to 3 nmi. long, widest (about 0.35 mm.) 

 near the base and uniformly narrowed to the acute or narrowly 

 obtuse, slightly denticulate apex, the margins below entire and 

 flat or slightly recurved; costa one sixth or less the width of the 

 leaf-base and nearly or quite percurrent; leaf-cells all more or 

 less linear with slightly thickened walls, the median 6-8 ix wide 

 and often 100 \x long, the basal wider, mostly 10-12 ix\ perichaetial 

 leaves with loosely clasping, somewhat larger base than those of 

 the stem; seta rather weak, finally reddish, mostly 8-9 mm. long; 

 capsule erect, oval-oblong, 1-1.5 mm. long without lid, becoming 

 cylindric and somewhat contracted under the mouth when old 

 and dry, the exothecal cells with somewhat thickened, nearly 

 straight lateral walls, the median cells 16-20 ix wide by 35-60 /x 

 long, the stomata at the base few or quite lacking; lid obHquely 

 subulate, about 0.75 mm. long; annulus none; peristome-teeth 

 about 250 [x high, regular, lanceolate, reddish brown below and 

 vertically striate, divided about half way down into pale, papillose 

 forks and borne on a basilar membrane scarcely extending above 

 the rim; spores rough, 16^11 in diameter; calyptra cucullate, 

 smooth, extending well down the capsule. 



PoHllo Island: May, 1909, 1260. 



In habit this species is much like D. fiaccidida Mitt, of Fiji 

 and Samoa, but the latter has an annulus, a different peristome, 

 and spores only 3-4 jw in diameter. 



Leucoloma molle (C. Mull.) Mitt. Luzon : Mariveles Mountain, 

 July, 1909, 1273. 



571 



