CüNTRIBUTIOXES NOYAE AD FLOKAM BRYOPHYTON JAPONIC AM. 57 



vel apice crenulatis ; nervo valido, infra summum apicem folii 

 evanido, e medio ad apicem leviter flexuoso, lutescenti, in sectione 

 transversali piano- con vexo, dorso valde prominenti, basi c. 42 /^ 

 lato et c. 28 /^ crasso, e 3-4-stratis cellularum uniformium in- 

 crassatarum composite, ceirulis dorsalibus c. 8, ventralibus c. 4 ; 

 cellulis laminalibus in medio folii quadratis subquadratis ovali- 

 quadratis vel rectangulis, c. 7-9-14/^ longis et c. 7-9/^ latis, 

 superioribus ovalis vel oblongis, basilaribus quadratis vel rectangulis 

 c. 7-10-18/^ longis et c. 7-10// latis, angularibus quadratis, omnino 

 laevibus vel parce humile papulosis baud opacis. Inflorescentia 

 autoica ; flores masculi in caule vel ramis geminiformes ; folia 

 perigonialia 5-8, intima quadrato-obovata, apice subito acuto- 

 attenuata vel cuspidata, c. 0.32 mm. longa et c. 0.24 mm. lata, 

 concava, enervia ; antberidia 5-8, parapliysibus perpaucis, hyalinis 

 vel fuscescentibus ; flores feminei in caule. Ramulus pericliaetialis 

 valde radiculosus. Bracteae perichaetü intimae basi semivaginatae 

 oblongo-lanceolatae apice subito lanceolate -subulate attenuatae, c. 

 1.6-2.0 mm. longae, integerrimae ; nervo valido, infra summuna 

 apicem evanido, lutescenti-fusco ; cellulis prosenchymaticis, basilari- 

 bus rectanglaribus laxioribus, laevibus. Vaglnula cylindrica, c. 

 0.9-1.0 mm. alta et c. 0.25-0.30 mm. crassa, fuscescens. Seta c. 

 10-15 mm. longa, stricta curvatula vel flexuosula, sicca per totam 

 longitudinem torta, inferne rubra, superne fuscescens, laevis. Theca 

 symmetrica vel paulum asymmetrica, oblonge -cylindrica, c. 1.6-2.5 

 mm. longa et c. 0.4-0.56 mm. crassa, stricta vel curvatula, fusca, 

 laevis, brevicoUis (coUo obconico c. 0.24 mm. longo.), sicca de- 

 operculata sub ore paulum contracta ; cellulis exothecii rectangKs 

 quadratis vel oblonge -quadratis, ad orificium in seriebus c. 5 minutis 

 hexagom's ; stomatibus in collo sat numerosis, phaneroporis. Peri- 

 stomium duplex ; exostomii dentés lineari-subulati, basi connati, c. 



