140 



(JK.VMIXE.1-]. 



Phyllostachys SIEB. ct Zucc. 



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

 Congr. Int. Bot. p. 233 tt. 55-57. 



Phyttostachys mitis Riv. ; MATSUM. Lid. PL Jap. II- 1 p. 04. 



HAB. Rosuiko, cult., leg. B. HAYATA, Aprili. 1916. 



Xote : Rhizome repens, culms distant, erect, side branches single or in 

 pairs. 



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

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

 vagina medio margine liaud ciliolata glabra tenuiter membranacea apice abrupte 

 ad pscudophyllum abeuns trimcata, partibus truncatis 1 cm. latis, apice hand 

 auriculata setulis auricularibus ntillis ; ligula subnulla ; pseudophyllum 



a 



Fig. SO, Flnjlloslachys formoaami HAYATA ; a, apical portion of a sheath of a turion, 

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

 natural size. 



lineare 16 cm. longum 3 mm. latum apice acuminatum margine undulatum et 

 interiore rccurvum. Culnius distans 7 m. longus a basi usque ad 2 m. altitudinem 

 34- cm. in diametro, rotundatus in sectionc, canalis 2i cm. in diametro ; lignum 

 ^ cm. crassuni ; merithallium in 2 m. altitudinem mcdiocriter 10 cm. longum 

 valde variabile interdum irregulare ut Bambusa lieterodada ; pulvillus inferior 

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

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

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

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

 auriculis iiicTqualibus, una majore una niiuore, scmi-rotundatis hirsutis, ligula 

 minuta hirsuta, setis auricularibus 11011 existis. Folia lanceolata vel lineari- 

 lanceolata 812 cm. longa 17 mm. lata apice acuniinata basi obtusa ad petioluui 

 3-5 mm. longum abeuntia margine scabra, nervis secundariis utroque latere 



