140 



GRAMINItLE. 



Phyllostachys SIEB. et Zucc. 



Phyllostachys pubescens H. LEHAJE Nat. Syst. Bamb. in Act. III. 

 Congr. Int. Sot. jf.'23!3 tt. 55-57. 



Phyllostachys mitis Riv. ; MATSUM. Ind. PL Jap. II- 1 p. 94. 



HAB. Rosuiko, cult., leg. B. HAY ATA, April! . 1916. 



Note : Rhizome repens, calms distant, erect, side branches single or in 

 pairs. 



Phyllostachys formosana HAYATA sp. nov. (Fig. 50). Arborescens 

 vel frutex. Rhizoma repens ; turio purpurascens plus minus maculatus glaber, 

 vagina medio margine haud ciliolata glabra teuuiter membranacea apice abrupte 

 ad pseudophyllum abeuns truncata, partibus truncatis 1 cm. latis, apice haud 

 auriculata setulis auricularibus nulh's ; ligula subuulla ; pseudophyllum 



a 



Pig. SO, Phyllostachys formosana HAYATA ; a, apical portion of a sheath of a turion, 

 seen from siirface ; b, the same, seen from back ; c, vertical section of the same ; 

 natural size. 



lineare 16 em. longum 3 mm. latum apice acuminatuni margine midulatum et 

 interiore recurvum. Culmus distans 7 m. longus a basi usque ad 2 m. altitudinem 

 3^- cm. in diametro, rotundatus in sectione, canalis 2 cm. in diametro ; lignum 

 ^ cm. crassum ; merithallium in 2 m. altitudinem mediocriter 10 cm. longum 

 valde variabile interdum irregukre ut Bambusa lieterodada ; pulvillus inferior 

 distincte elevatus annuliformis, pulvillus superior tenuissime elevatus a iis in- 

 ferioribus 3 mm. distans ; merithallium ramiferum in sentione Q forme, ramis 

 solitariis vel geminis. Ramuli graciles 1-2 foliati ; vagiuella 3 cm. longa 

 1 mm. lata latere convoluto-imbricata latere sursum ciliolata apice pubescens, 

 auriculis insequalibus, una majore una minore, semi-rotundatis hirsutis, ligula 

 minuta hirsuta, setis auricularibus non exist is. Folia lanceolata vel lineari- 

 lanceolata 8-12 cm. longa 17 mm. lata apice acuminata basi obtusa ad petioluin 

 35 mm. longum abeuntia margine sea bra, nervis secundariis utroque latere 



