28 



ART. 4. — SHUTAI OKAMURA : 



viridescentes, nitidiusculae, moUiusculae. Caulis primarius repens, 

 hie illic fasciculatim fusco-radiculosus ; secundarius erectus, c. 3-4 

 cm. longus, simplex vel parce ramosus, sectione teres, c. 0.3-0.35 

 mm. crassus, fasciculo centrali nullo, reti centrali luteo, cellulis 

 hexagonis vel oblongo-liexagonis, incrassiusculis c. 15-20/^ magnis, 

 cellulis inde ad snperficiem paulum minoribus incrassatioribus 

 rubiginosis ; ramis erecto-patentis, c. 1-2 cm. longis, obtusis vel 

 subflagelliformiter attenuatis ; caulibus secundariis ramisque dense et 



turgide foliosis teretibus. Folia sicca 

 subimbricata, madida erecto-patentia, 

 baud decurrentia, cymbiformi-con- 

 cava, ovato-oblonga, raptim in acu- 

 men angustum strictum vel leviter 

 reciu'vum plus minus longum (c. 

 0.4-0.5 mm.) subulatum constricta, 

 c. 2.4-2.6 mm. longa et c. 1.1-1.3-1.5 

 min. lata, marginibus superne valde 

 inliexis, in subula minute serrulatis, 

 caeterum integerrimis ; nervo sim- 

 plici, tenui, c. 0.7-1.6 mm. longo, saepe furcato ; cellulis chlorophyl- 

 losis, linearibus, parietibus incrassatis et plus minus porosis, in 

 medio folii paulum porosis c. 70-100/^ longis et c. 7/^ latis, supe- 

 rioribus argute porosis c. 40-60 /^ longis et c. 7 /^ latis, basilari- 

 bus infimis fuscis valde incrassatis brevioribus latioribus c. 15/^ 

 latis inter sese valde porosis, alaribus distinctis fuscis oblongis 

 inter sese valde porosis c. 20-40 j« longis et c. 15-18/^ latis. 

 Caetera ignota. 



Formosa : Prov. Sinchiku-cliö, Naroyama (Leg. Hjsahiko Sasaoka ! 1. 

 Xn. 1912.). 



Species cun P. crassicauli (C. Müll.) Fleisch, et P. crassiusculo 



A. yi5 

 /**;/. 11. Pterobryopsis 

 ciicviUatifolia. 



A. Folia. (xl5). 



