Williams: Mosses of Philippine and Hawaiian Islands 573 



Barbula angustifolia (Hook. & Grev.) C. Mull. Luzon: Le- 



gaspi, on old walls, May, 1909, 1236. 

 Barbula consanguinea (Thw. & Mitt.) Sauerb. Luzon: Lo- 



bayet or Legaspi, 1909, 12^4. 



Barbula lobayetensis sp. nov. 



Dioicous.the male plantA\-ithone or two lateral appearing flowers 

 each containing four or five antheridia, about 0.4 mm. long, and fili- 

 form paraphyses enclosed by two very broad, golden brown perigo- 

 nial leaves scarcely longer than the antheridia: growing in rather 

 thin mats with mostly simple stems 5-8 mm. long, radiculose below, 

 leafy in the upper part and often bearing in the leaf-axils pale, 

 branching filaments with star-shaped propagulae at their tips; 

 stem-leaves irregularly flexuous or crispate when dry, up to 2.5 

 mm. long, nearly linear, sometimes slightly wider in the upper 

 part, the somewhat recurved apex acute and denticulate, the 

 margins below entire, papillose, flat in the upper leaf, sometimes 

 recurved below; costa percurrent, 50-60 )U wide just above the 

 base, in cross-section showing about four guide-cells, stereid bands 

 above and below them and outer cells somewhat difi"erentiated; 

 cells of upper part of leaf distinct, papillose, mostly nearly square, 

 about 6 X 6 M, in the lower third, rectangular, paler, mostly 

 8-10 M wide by 20-30 /x long; perichaetial much Hke the stem- 

 leaves but with somewhat larger, scarcely clasping base; seta 8-10 

 mm. long; capsule cylindric, about 1.5 mm. long without lid, the 

 exothecal cells with thin walls, the median about 16 ^ wide by 

 40-50 fjL long, those at the rim somewhat transversely elongate, in 

 four or five rows, the stomata few, in one row near the base ; lid subu- 

 late, about I mm. long; annulus none; peristome reddish brown, 

 finely papillose, the basal membrane extending 40-50 /x above the 

 rim and bearing filiform teeth about 0.5 mm. long and twisted 

 once around; spores pale, smooth, about 10 /x in diameter; 

 calyptra slightly rough at the apex. 



Luzon: Lobayet, Tayabas Province, on earth. May, 1909, 12^8. 

 This species has propagula about like those of B. sobolifera 

 Fleisch., but the leaves are very different; in habit it is quite 

 similar to B. pseudoehrenbergii (Lorentz) Fleisch., a somewhat 

 larger species with the apex of the leaf incurved and bearing in 

 the axils of the leaves club-shaped propagula. 



Macromitrium orthostichum Nees. Luzon: Mariveles Moun- 

 tain, 400 m. alt., on trees, Jul)^, 1904, I2i^b. 



Macromitrium Robinsonii R. S. Williams, Bull. N. Y. Bot. Gard. 

 8:344. 1914. Luzon: Mariveles Mountain, July, 1904, 7279. 



