66 



ART. 4. — SHUÏAI OKAMURA 



attenuata, c. 1.9-2.4 mm. longa et c. 0.5-0.64 mm. lata, concava, 



marginibus basi erectis, ubique praecipue ad apicem argute serratis ; 



nervis binis, tenuis, brevibus c. 0.64 mm. longis, 



viridibus ; cellulis valde chlorophyllosis, laevissi- 



mis, linearibus, c. 00-90 /^ longis et c. 7-8 /^ 



latis, basilaribus infimis haud porosis rectangulis 



c. 25-35/^ longis et c. 10/^ latis chlorophyllosis 



• saepe fuscis vel hyalinis, alaribus inconspicuis. 



Inßorescentia autoica ; flores utriusque sexus in 



caule geminiformes ; folia perigonialia intima 



ovata apice sensim attenuata, c. 0.48-0.72 mm. 



longa et c. 0.30-0.36 mm. lata, concava, enervia, 



margine crenulata ; antheridia c. 8, paraphysi- 



A^x20 bus paucis brevibus. Ramulus ^Jer^c/^ae^^a//s 



Fig. 28. isoptery- yaldc fusco-radiculosus. Bracteae perichaetii in- 



gium Hisauchii. 



A Folia (X 20)- timae e basi semi-vaginante sinsim auguste 

 B. Sporangia (X 10). subulatae, c. 1.7-2.0 mm. longae et c. 0.4-0.5 

 mm. latae, subula erecta vel recurva, marginibus e medio ad 

 apicem argute serrulatis ; nervo nuUo ; cellulis linearibus, chloro- 

 phyllosis, saepe apice dorso prominente papillosis, basilaribus 

 rectangulis fuscis. Vaginula cylindrica, c. 0.8 mm. longa, lutescenti- 

 viridescens apice fusca. Seta c. 1.0-1.5 cm. longa, tenuis, stricta, 

 basi rubra superne lutescenti-rubescens, laevissima, sicca torta. 

 Theca inchnata vel horizontalis, e collo distincto conico oblonga, 

 asymmetrica, leviter gibbosa, sicca deoperculata sub ore valde 

 contracta haud plicata, c. 1.4-1.9 mm. longa (collo c. 0.4-0.5 mm. 

 longo.) et c. 0.6-0.8 mm. crassa, fusca, leavis ; cellulis exothecii 

 quadratis vel rectangulis, c. 25-50 />« longis et c. 20-30/^ latis, ad 

 orificium in seriebus 3-5 minutis subquadratis ; stomatibus in collo 

 numerosis. Annulus duplex, c. 50-50/-« altus, e duplici série 



