GRAMIjSTELE. 137 



erectus rectus 6 m. altus, 2 cm. in diametro ; vagina clecidua purparea apice 

 attenuata primum ad sumrnum truncata sparse hirsuta demnm glabra nitida mar- 

 gine ciliata apice utroqne latere auriculis minutis et setis auricularibus instructa, 

 psendophyllis lineari-triangularibus 5 mm. longis 4 mm. latis apice acuminatis, 

 ligula brevissima villosa ; merithallium nitidum medium 25 cm. longnm 9 mm. 

 latum ; lignum 1^-mm. crassum ; canalis 5^- mm. in diametro; pulvillus 

 inferior prominente annuliformis, pulvillus superior tenuiter elevatus, pulvilli 

 a se 7 mm. distantes ; squama bicarinata bifida subglabra. Kami ternatim siti 

 simplices vel pauciramulosi, ramulis 3-5-10-foliatis ; vaginella valde imbricate 

 510 cm. longa complanata ore truncata, setis auricularibus utroque latere circ. 

 10 erectis rectis vel crispatis ; ligula brevissima hirsuta. Folia lineari-lanceo- 

 lata 15 24cm. longa 2-3^ cm. lata apice subito acuminatissima basi abrupte 

 ad petiolum 5-7 mm. longum abeuntia margine sursum latere uno hirsuta 

 latere uno sea-bra, nerviis secundariis utroque latere costre 7-11, venulis 

 inter nervos secundarios 7. 



HAB. Nanto: Rinkiho et Rosuiko, Aprili. 1916, leg. B. HAY ATA ; 

 Kagi : Shokosho, culmus 10 in. altus 2| cm. in diametro. 



Near Arundinaria japonica, but. differs from it in having ternate 

 branches, and in having shining vaginas of the turions. The vaginas of A. 

 japonica is quite lusterless. 



Arundinaria niitakay amen sis HAYATA in Tokyo Bot. Mag. XXI. 

 p. 49 et M. Mont. %ormos. p. 240. 



Sasa niitakayamensis CAMUS Bambus. (1913) p. 24. 



In our species, the stamens are usually in three, and the branches are 

 always ternate, characters quite assignable to Arundinaria, but not to Sasa. 

 As Monsieur CAMUS gave no comment, I can not understand on what ground 

 did he transfer this species to Sasa. 



Arundinaria oiwakensis HAYATA sp. nov. (Fig. 48). Frutescens. 

 Rhizoma horizontaliter sympodialiterque repens, partibus novellis squamis imbri- 

 catis obtectis, 5 mm. crassum, radicibus teretibus incrassatis 4 mm. in diametro. 

 Turio erectus rectus purpurascens hirsutus multistriatus, striis viridescentibus, 

 pilis albis vel fulvescentibus caducissimis obtectus; vaginae mediae turionis sub- 

 coriacea? caduca3 dorso hirsutae instus glabrse nitidsa basi ad insertionem dense 



