APPENDIX II. 



After I. A. 2. :— 



Spkts. angular, gls. cariiiate 3. supinus. 



Spkts. terete, gls. convex . . . . . . . .3*. erechis. 



In place of B. i. : — 



1. Bristles 0. Stem terete: — 



Stems septate when dry. Clusters simple near base. Spkts. 



•3-* 5" . . . . . . . . .4. arliculatus. 



Stems not septate. Clusters on rays of a lateral umbel. 

 Spkts. •25-* 3" -i*. corymbosus. 



3*. S. erectus, Poir. Syii. S. debilis, Pursh. 



A sedge 6-12" high or more with terete stems and generally resem- 

 bling S. supimis. Spikelets in a single lateral head, terete. Glumes 

 ovate concave incurved, bristles 5-6, rarely 0, style 2-3-fid. Nut 

 broadly obovoid plano-convex obtuse, slightly transversely wavy, 

 black. 



Xathpur, Ham. 1 Fl. Sept. 



4*. S. corymbosus, Heyne. 



A stout sedge with a horizontal rhizome and terete leafless stems 

 3j[ft. high and -25" diam. at the base. Spikelets -25- -3" long, rusty, 

 clustered on the rays of a lateral simple or compound umbel, glumes 

 ovate acute mucronate, glabrous, faintly striate, bristles 0. 



Patna, Ham. ! Fl. July-Aug. 



Rays of umbel sliort or sometimes attaining 5". Lowest bract * 5-4" suberect, 

 scarcely looking like a continuation of the stem as in preceding species. Niit 

 obovoid 3-gonous scarcely half as long as glume, black, smooth or with faint 

 transverse lines. 



FAM. 139. GRAMINEiE. 



10. ERAGROSTIS, Beaiiv. 



Add to Key (p. 955) :— 

 Annual. Spkts. 5-12-fld. Empty gls. unequal, i very minute 



hyaline nerveless. Grain ellipsoid ...... 13. pilosa. 



Perennial. Spkts. 3-9-fld. Empty gls. subequal acuminate 



strongly 1- nerved. Grain truncate both ends .... 13*. nigra. 



13*. E. nigra, Nees. 



An erect stout or slender perennial 6"-3 ft. high. Leaves with 

 mouth of sheath bearded. Panicle large open lax-fld., oblong to 

 ovate, rhachis glabrous at the nodes, branches many in whorls or 

 fascicles. Spikelets olive-grey • 15-- 17" long, linear to oblong 3-9-fld. 

 Gls. i and ii subequal membranous acuminate strongly 1 -nerved with 

 keel scabrid, flg. gls. ovate acute about -06" long, palea obtuse denticu- 

 late persistent. Grain very short truncate each end. 



Nathpur, Ham. ! Fl. Aug. 



FAM. 152. DIOSCOREACEJE. 



1. DIOSCOREA, L. (p. 1115). 



The following species could be placed first in the Key as it dift'ers from all the 

 rest in the straight sharp spines on the roots and base of stem. It is probably 

 only cultivated in our area. The description is mainly from the F.B.I. 



1258 



