88 



ART. 4. — SHÜTAI OKAMUEA 



pinnatim ramosus, sectione oblongns, c. 0.28-0.32 x 0.2-0.24 mm. 

 magnus, fasciculo central! nnllo, reti centrali liyalino, cellulis 

 hexagonis tenellis c. 15/>- magnis, cellulis periphericis c. 4-5-seriatis 

 minoribus incrassatis lutescentibus vel fuscescentibus ; ramis ads- 

 cendentibus, c. 5-15 mm. longis, strictis vel curvatis, simplicibus 

 vel parce (1-4) fasciculatim rarins pinnatim ramulosis, apice 

 obtusis acntis vel attenuatis, aliquando flagelliformibus, dense 

 foliosis, teretibus. Paraphyllia nuUa. Folia sicca laxe adpressa 

 plicata hand liomomaUa, madida erecto-patentia, concava, sub- 

 carinata, longitudinaliter plicata (c. 5), basi breviter decurrentia, 

 late ovato- vel subcordato-deltoidea subito in acumen elongatum 

 angustum subulatum summo apice subloriforme attenuata, c. 



2.7-2.9 mm. longa et c. 1.0-1.2 mm. 

 lata, marginibus basi revolutis dein 

 subplanis, e basi ad apicem minute 

 saepe in acumen grosse serratis ; 

 nervo validiusculo, infra summum 

 apicem folii evanido vel fere percu- 

 rrente, in sectione transversali piano - 

 convexo, dorso prominenti, basi c. 

 50,« lato et c. 20/>< crasso, e 4-s- 

 tratis cellularum incrassatarum uni- 

 formium composito ; cellulis laevibus, 

 parietibus incrassiusculis, linearibus, 

 c. 30-40/^ longis et c. 5-6/^ latis, 

 basilaribus c. 40-70 /^ longis et c. 6-7 /^ latis, infimis brevioribus et 

 latioribus c. 9/^ latis parce porosis, alaribus numerosis breviter 

 rectangulis c. 20-35 x 9-15 /^ magnis hyalinis, supraalaribus numerosis 

 quadratis c. 15/^ magnis vel oblongis c. 20,« longis hyaünis. In- 

 ßorescentia dioica ; flores utriusque sexus geminiformes in caule et 



Fig. 39. Ptychodium 

 perattemiatiini. 



A. Folium ( X 20) ; B. Theea ( x 10). 



