46 



ART. 4. — SHUTAI OKAMUEA 



caulina e basi decurrentia et cordato-ovata lanceolato-lingulata, apice 

 acuta vel breviter acuminata, c. l.G-2.0 mm. longa et basi c. 0.9- 

 0.95 mm. lata, concava, basi saepe leviter bi-plicata, marginibus e 

 basi ad medium planis, integerrimis crenulatis vel apice minute 

 serrulatis, haud limbatis ; nervo valido, infra summum apicem folii 

 evanido, luteo, in sectione transversali plano-convexo, dorso promi- 

 nent!, basi c. 70-80 />« lato et c. 40/^ crasso, e 3-4-stratis cellularum 



valde incrassatarum uniformium 

 composite ; cellulis laevissimis, 

 omnino incrassatiusculis, luniini- 

 bus in medio folii 4-0-angulose 

 rotundatis ovalis vel elipticis c. 

 9-20 [J- longis et c. 7 ,« latis, 

 superioribus rliombeis vel rhom- 

 boideis c. 20-30 /^ longis, basi- 

 laribus breviter linearibus c. 

 15-30/^ longis et c. 4-6/^ latis, 

 infimis luteis parce porosis, alari- 

 bus indistinctis, marginalibus e basi ad medium c. 4-7-seriatis 

 minoribus plerumque quadratis c. 6-7 i^ magnis ; folia ramea minora, 

 c. 1.2-1.3 mm. longa et c. 0.6-0.64 mm. lata, ceteroquin ut folia 

 caulina ; folia ramulina c. 0.8-0.9 mm. longa et c. 0.4-0.5 mm. 

 lata, ceteroquin ut folia caulina. Caetera ignota. 



Formosa : Prov. Siuchiku-chü, Seuseki \ßi s] (Leg. Hisahiko Sasa- 

 OKA ! 1. XII. 1912.). 



Species P. Mahinoi Beoth. similis, sed e cellulis superioribus 

 et basilaribus foliorum fasiliter dignoscenda. 

 Nomen speciei ab loc. Formosa. 



A.X20 

 Fig. -O. Piiuiatella forniosaua. 



A. FoHa (x20). 



