1978 Leaflets of Philippine Botany [Vol. VI, Art. 99 



sima; theca immersa, erecta, oblonga, pallide fusca; exostomn- 

 dentes longe infra orificium thecae oriundi, lanceolato-subulati, 

 lutescentes, linea media exarati, laevissimi, endostomium im- 

 perfectum; spori 0.035—0.040 mm, virides, papillosi; operculum 

 e basi eonica breviter et recte rostratum; calyptra mitraeformis, 

 pluriloba, operculum tan turn obtegens, nuda. 



Type specimen 11868, A. D. E. Elmer, Tod ay a (Mt. Apo) f 

 District of Davao, Mindanao, September, 1909. 



Species Symphysodontella subulatae Broth, affinis, sed statu ra 

 minore, caule secundario dense et regulariter pinnato nee non 

 sporis duplo majoribus, viridibus dignoscenda. 



ORTHOTRICHACEAE. 



Macromitrium (Leiostoma) assimile Broth, n. sp, 



Dioicum; gracilescens, caespitosum, caespitibus densis, late 

 extensis, fuscescentiviridibus, intus fuscescentibus, vix nitid- 

 iusculis; caulis elongatus, repena densissime ramosus, ram is 

 erectis, usque ad 2 cm longis, dense foliosis simplicibus, acutis; 

 folia ramea arete spiraliter contorta, humida erecto-patt*ntia, 

 carinato-concava, elongate et anguste lanceolato-ligulata, plus 

 minusve obtusa, nervo excedente longe aristata, usque ad 1.7 

 mm longa, marginibus basi anguste reeurvis, integris, nervo 

 rufescente, in aristam elongatam, integram excedente, cellulis 

 majusculis, subquadratis, baud incrassatis, valde pellucidis, 

 papillosis, basilaribus elongatis, incrassatis, lumine angustissimo, 

 ad plicas grosse papillosis; bracteae pericbaetii longiores et 

 latiores, sensim acuminatae; seta c. 1.5 cm alta, tenuis, rubra, 

 sublaevis; calyptra nuda. Caetera ignota. 



Type specimen 11663, A. D. E. Elmer, Tod ay a (Mt. Apo), 

 District of Davao, Mindanao, September, 1909. 



Species puleherrima, Macromitrium Blumei Nees et Macro- 

 mitrium Zollingeri Mitt, affinis, sed statura robustiore, ramis 

 longioribus, foliusque elongatis, angustis, laxins reticulata, valde 

 pellucidis optime diversa. 



POTTIACEAE. 



Trichostomum pervagtnatum Broth, n. sp. 



Dioicum; robustiusculum, caespitosum, caespitibus densis, 



