CONTRIBUTIONES NOVAE AD FLORAM BRYOPHYTON JAPONICAM. 



GRIMMIACEAE. 



GlyphottiitrUini angustifoliuni Sh. Okamura. sp. nov. 



Habitat in saxis. Plantae robustae, compacte pulvinatae, su- 

 perne laete virides, inferne nigrescentes, in statu sicco nitidiusculae, 

 nigrescenti-virides, rigidiusculae. CauUs erectus vel adscendens, 

 usque ad 1.5 cm. altus, basi rubiginoso-radiculosus, simplex vel 

 1-3-ramosus, sectione teres, c. 0.24-0.28 mm. diam., fasciculo cen- 

 trali c. 40// magno pluricellulari, reti inter- 

 medio fuscescenti, cellulis hexagonis vel 

 oblongo-hexagonis, c. 15-20 ;" magnis tenellis, 

 cellulis periphericis in seriatis 1-3 minoribus 

 c. 7 !J- magnis incrassiuscuKs fuscis ; ramis 

 erectis, c. 5-8 mm. altis, strictis, simplicibus ; 

 caulibus ramisque dense foliosis teretibus. 

 Folia sicca circinato-incurva, madida erecto- 

 patentia, carinato-concava, lanceolata vel 

 subulate -lanceolata, apice obtusiuscule acuta, 

 c. 4.0-4.5 mm. longa et c. 0.64-0.72 mm. 

 lata, marginibus integerrimis, undulatis ; 

 nervo valide, apice evanido, in sectione 



transversali piano- convexo, dorso valde prominenti, basi c. 0.12 mm. 

 lato et c. 0.06 mm. crasse, cellulis ventralibus c. 11-12 majoribus, 

 ducibus medianis c. 7, stereideis numerosis, cellulis dorsalibus c. 17 

 distinctis minoribus ; cellulis laminalibus incrassiusculis, valde 

 chlorophyllosis, obscuriusculis, ad apicem rotundato-hexagonis, c. 

 12-14// magnis, ad basin quadratis vel breve rectangularibus, 

 basilaribus infimis rectangularibus, c. 30-40 // longis et c. 12-17 // 

 latis. Inflorescentia autoica ; flores masculi ad basin perichaeti 



A.XIO 



B.y2o 



7*7</. 3. Glyphomitrium 

 angiiSvtifolitun. 



A. Folia ( X 10) ; B. Sporangia 

 (x20). 



