3 Art. 7. - S. Okamura : 



transversali plano-convexo, dorso prominenti, basi c. 0.08-0.09 

 mm. lato C/7 folii latitudinis occupante) et 0.035-0.040 mm. crasso, 

 cellulis ventralibus c. 11, ducibus medianis 5-7, cellulis dorsalibus 

 c. 15, stereidearum utrobique unistrato; cellulis laminalibus lineari- 

 bus, c, 50-70-100,« longis et c. 9/« latis, parietibus latioribus porosis 

 (lumine 2.5-5.0/« lato), superioribus brevis c. 28/« longis et c. 12,« 

 latis, alaribus distinctis, in margin 2-stratis, quadra tis vel rectan- 

 gularibus, c. 20-28,« magnis, fusco-auris. Inflorescentia dioica; 

 flores feminei pseudolateralis. Bracteae perichaetir intima? erecte, 

 basi alte vaginante, subito in acumen canaliculatum lineari-subula- 

 tum attenuate, c. 4.5-5.0 mm. longa?, integerrimse; nervo tenui 

 ad basin acuminis evanido; cellulis linearibus, parietibus c. 5-7,« 

 crassis porosis, lumine c. 1.5-2.5/* latis, basiraribus laxioribus. 

 Vaginula cylindrica, 0.8 mm. alta, fusca apice nigrescens; para- 

 pbysibus paucitas luteis c. 0.5 mm. longis. Seta c. 15-18 mm. 

 alta, stricta vel strictiuscula, lutescenti-virescens, lsévis, sicca 

 leniter torta. Theca cylindrica, c. 2.0-2. lmm. longa et c. 0.64 

 mm. crassa, erecta et stricta vel leniter arcuatula, subsymmetrica, 

 fulva, leniter 8-plicata, brevicollis; cellulis exothccii rectanglaris 

 et plerumque collenchymaticis, c. 40-50 x 20,« magnis, ad orifieium 

 in seriebus 3-4 minutis subquadratis c. 15/^ magnis; stomatibus in 

 collo sat numerosis. Annulus duplex, c. 40-45,« altus, Intens. 

 Peristoma dentés lineari-lanceolati, fere ad medium bificli, c. 0.4- 

 0.42 mm. longi et basi 60-70,« lati, clensiuscule articulati, obscure 

 rubiginosi, inferne variolare striolati, superne dense papillosi, intus 

 densiuscule et bene evolute trabeculati. Spori c. 18-20/«, virides, 

 minutissime et dense papillosi. Operculum e basi conicum f'uscum 

 longe oblique rostratum. c. 2 mm, longum, rostro subulato, apice 

 obtuso, lutescenti-virescenti. Calyptra cueullata, c. 2. 1 mm. longa, 

 lutescenti-fusca, Itevis. Matur a?state. 



Sachalin (Coli. Chikaji Tsujino! . Auguste 1913 ). 



Nomen varietati's ab Sachalin. 



A typo nervo folii latiore, peristomii dentibus superne dense 

 papulosis differt. 



