4 V. F. Brothenis. [XLVII 



Pottiaceae. 



10. Barbula orientalis (Willd.) Broth. 



Luzon: Manila, very common on damp walls every" 

 where about the city (Merrill n. 3901). 



Area: Nepal, Bengal, Ceylon, Malacca, Java, Ceram, 

 Borneo, Tonkin, Honkong, Formosa and New Guinea. 



Ortliotricliaceae. 



11. Macromitrium (Leiostoma) Merrillii Broth.. n. sp. 

 Dioimim; sat gracile, caespitosum, caespitibiis depressis, 



laxis, viridibus, inferne fuscescentibiis, hand nitidis; caulis 

 longissimus, repens, densissime ramosus, ramis vix ultra 5 mm 

 altis, erectis, densissime foliosis, brevissime ramulosis vel sim- 

 plicibus, obtusis; foUa sicca spiraliter contorta, humida erecto- 

 patentia, carinato-concava, lineari-vel lanceolato-ligulata, ob- 

 tusa, brevissime apiculata, 1,5 — 1,9 mm longa et 0,3 4 — 0, 3 8 mm 

 lata, marginibus infima basi angustissime revolutis, integerri- 

 mis, nervö basi c. 0,0 4 mm lato, lutescente, brevissime exce- 

 dente, cellulis subrotundis, c. 0,010 mm, laminalibus valde 

 chlorophyllosis, haud incrassatis, minutissime papillosis, basi- 

 laribus conformibus, minus chlorophyllosis, ad plicas haud 

 elevato-papillosis, infimis ad margines breviter rectangulari- 

 bus, hyalinis; bracteae perichaetii foliis conformes; seta cum 

 vaginula 5 mm älta, sicca superne dextrorsum torta, rubra, 

 laevissima; theca erecta, oblongo-ovalis, sicca laevis, fusce- 

 scens, ore rubro haud plicata ; pefis^omiwm simplex, infra orifi- 

 cium oriundium; eicos^om^^' dentes lineari-lanceolati, obtusi, basi 

 connati, c. 0,3 mm longi, basi c. 0,0 7 5 mm lati, pallide lutei, 

 linea divisurali hic illic pertusi, densissime papillosi, obscuri; 

 spori valde inaequales, 0,0 2 0— 0,0 3 5 mm, virides, papillosi; 

 operculum e basi conica recte rostratum, rostro dimidiam par- 

 tem thecae adaequans; calyptra thecam obtegens, straminea, 

 valde pilosa. 



Planta mascula ignota. 



Luzon: Prov. of Tarlac, Concepcion, on branches of 

 Falaquium latifoUum (Merrill n. 3.590). 



