58 



GRAMINE/E. 



1 1 1 ) l/^\il<( ^ 



Fig. 3O, Isachne debilis BENDL.; a, 

 a spikelet ; b, a flowering glume ; c, a 

 palea with the pistil ; d, a stamen. 



Enura. PL Formos. p. 500. 



5. Isachne debilis EENDLE (Fig. 30) ; HEMSLEY Incl. Fl. Sin. III. p. 

 322. 



Isachne monticola HACK, (non 



BiisE) in Bull. Herb. Boiss. Scr. 2, 



IV. (1904) p. 528; MATSUM. et 



HAYATA Enum. PI. Formos. p. 499. 



IV. SpJicerocarywn NEES. 



HOOK. f. Fl. Brit, Incl. VII. p. 

 246 ; TRIM. Fl. Ceyl. V. p. 258. 



The present genus is represented 

 by a single species S. elegans or Isachne pulcluilla. It seems that BEXTHAM 

 regarded this genus to be referable to Isachne. He gives no account of 

 Sphcerocaryum in his " Genera Plantartim" Vol. III., but mentions I. pul- 

 chella in his Flora Hongkongensis which species is regarded by HOOKER to be 

 referable to S. elegans. HACK EL says in " Nachtragc zur Nat, Pfl.-fam " 

 that he thinks the genus has quite the same character as Isachne. As far 

 as my knowledge extends, the spikelets of SpJicerocaryum is always single- 

 flowered, and the structure is sufficiently different from that of spikelets 

 of Isachne. It may be, as HACKEL says, two artificial to arrange Sphcp.ro- 

 caryum under the Agrostinca? ; but it may be quite natural to refer the 

 genus to the Panicea? and to place it close to Isachne. 



Sphserocaryum elegans NEES.; HOOK. f. Fl. Brit. Ind. VII. p. 246 ; 

 KEXDL. in HEMSL. Ind. Fl. Sin. III. p. 387 ; TRIM. Fl. Ceyl. V. p. 258 ; 

 DUNN et TATCHER Fl. Hongk. et Kwant. p. 317. 



Isachne pulchella BENTH. Fl. Hongk. p. 417. 



Panicum barbivaginale HAYATA Mater. Fl. Formos. p. 400. 



HAB. Kinpori, leg. B. HAYATA, Aug. 1900 ; Kappanzan, leg. T. SOMA, 

 Oct. 1911. 



V. Panicum LINN. 



Key to the sections. 



(Arranged after HOOKER'S system given in " Fl. Brit. Ind. VII. pp. 27-28.") 

 A. Spikelets terete or dorsally compressed. 



