58 



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

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

 palea with the pistil ; d, a stamen. 



Enum. PL Formos. p. 500. 



5. Isachne debilis RENDLE (Fig. 30) ; HEMSLEY Ind. Fl. Sin. III. p. 

 322. 



Isocline monticola HACK, (non 



BUSE) in Bull. Herb. Boiss. Ser. 2, 



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



HAYATA Enum. PL Formos. p. 499. 



IV. SpTicerocaryuin NEES. 



HOOK. f. Fl. Brit. Ind. VII. p. 

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



The present genus is represented 

 by a single species S. elegans or Isachne pulchella. It seems that BENTHAM 

 regarded this genus to be referable to Isachne. He gives 110 account of 

 Sphcerocaryum in his " Genera Plantarum" Vol. III., but mentions /. pul- 

 cliella in his Flora Hongkongeusis which species is regarded by HOOKER to be 

 referable to S. elegans. HACKEL says in " Nachtrage 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 Sphcerocaryum 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 Sp7ice.ro- 

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

 genus to the Panicese and to place it close to Isachne. 



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

 RENDL. 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 barb ivag 'male 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. 



