139 



purpurascens hand nitidus 

 opacus ; vagina media purpuras- 

 cens opaca hand nitida scabra 

 pilis brevissimis fusco-purpureis 

 triangulari -formibus adpresse con- 

 spcrsa niargine sursum ciliolata ; 

 seta? auriculares utroquc latere 

 apicis vagiiise 4-5 sitse rectse 

 erectse hirsutse ; ligula brevissinie 

 Jiirsuta ; pseudophyllis minutis 

 longe triangularibus 4mm. longis 



o o o 



1^ mm. latis apice acuminatis. 

 Culmus distant 3 m. altus prope 

 basin 1-1^- cm. in diametro toto 

 vagi ni s per si stciiti bu s obtectus, 

 partibus non ramifcris 110cm. 



Fig. 49, Arundinarin Usawai HAYATA ; a, a 

 sheath of a turio ; b, the same seen from back ; c, 



longis J merithallium inferillS 25 the same see n from surface ; d, vertical section of 



cm. loil<nim 14mm. in diametro ^ e same '> e ' another sheath; f, the same seen from 



surface ; g, the same, seen from back ; h, hairs on 

 pulvillis a se 7 mm. distailtibus, the surface; a and e, natural size; others more or 



pulvillis inferioribus prominente less magnified. 



annuliforniibus, pulvillis superioribus baud vel vix prominentibus ; lignum 

 3 mm. crassum ; canalis medullaris 7 mm. in diametro ; squama bicariiiata 

 2-fida, segmeiitis linearibus 15 mm. longis ad carinas hirsutis. Rami ternati 

 vaginati, centrale majore, laterales minores. Ramuli vaginati vel interdum nudi 

 1-2 foliati ; vagiiiella circ. 5 cm. longa glabra apice utroque latere auriculis 

 minutis et setis auricularibus iustructa, ligula minuta fimbriata liirsuta. Folia 

 lineari-lanceolata 11-31 crn. longa 1343 mm. lata apice acuminatissima basi 

 plus minus oblique obtnsa ad extremitateni subito cuneata ad petiolum 2-5 mm. 

 longum abeuntia margine scabra, nervis secundariis utroquc latere costse 5-8, 

 nervulis inter secundarios 7-10. 



HAB. Shishitao ad 2000 ped. alt,, leg. B. HAYATA, Aprili. 1916. typus !. 



Near A. japwnica, but differs from it by the ternate branches on the 

 culms and by the not hairy scabrous luster less presistent sheaths. 



