{From the Journal of the Bombay Natural Hist. Soc, September 30, I92S-I 



REVISION OF 

 THE FLORA OF THE BOMBAY PRESIDENCY 



BY 



E. Blatter, s.j., fh.d., f.l.s. 



PART VII 



GRAMINE^E 



BY 



E. Blatter and C. McCann" 

 {Continued from p. 649 of Volume XXXII) 



50. Pseudechinol^ena, Stapf in Prain Fl. Trop. Afr. ix, 494. 



Annual. Culms very slender with a prostrate rooting base. Leaf-blades 

 lanceolate, soft. Spikelets very irregularly armed or quite unarmed, obliquely 

 ovoid, laterally compressed and mostly conspicuously gaping, falling entire 

 from the pedicels, binate or more often subsolitary or solitary, secund on the 

 flat or subtriquetrous slender rhachis of spiciform racemosely arranged racemes. 

 Involucral glumes herbaceous, of about the same length and almost as long as 

 the spikelet, or the lower distinctly shorter, heteromorphous. Lower more or 

 less flat, 3-nerved, smooth or almost so ; upper boat- shaped, gibbous down- 

 wards, 7-nerved, with longitudinal rows of more or less transparent spots- 

 between the nerves and with or without shorter or longer,, stout, hooked hairs or 

 bristles from the centre of the spots Lower floret male or barren, as long as 

 the spikelet ; glume oblong-lanceolate with a minutely truncate tip, laterally 

 compressed, but rounded on the back, chartacecus, with membranous margins 

 and a delicate hyaline area at the base, smooth, pale almost as long as the 

 glume, more or less convolute, faintly 2-nerved. Upper floret hermaphrodite, 

 shorter than the lower ; glume broad-lanceolate to oblong, subacute, very 

 convex on the back, chartaceous, faintly 5-nerved pale similar to the valve in 

 texture, tightly clasped by it when mature, Lodicules 2, cuneate Stamens 3-. 

 Styles free at the base, capillary ; stigmas plumose, subterminally exserted. 

 Grain oblong in face-view, semi-obovate in profile, back very convex ; scutellum 

 elliptic, almost half the length of the grain * hilum subbasal, punctiform. 



Species 1. — Tropics of the whole world. 



The only species of this genus was originally described under Echinolcena* 

 This genus, however, is exclusively American which, according to Stapf 7 

 differs from Pseudechinolczna in many ways, ' as in its 'densely packed spikes, 

 the many-nerved lower glume, the "eglandular" always unarmed upper glume, 

 the uniformly papery 5-nerved lower valve [lower flora,! glume] which is accom- 

 panied by a sharply 2-keeled flat valvule [pale], the basally appendaged 

 fertile valve [upper floral glume] and the acutely auricled or toothed flaps of 

 its valvule [pale], and finally the flatter grain which is marked with a panduri- 

 form line on the face extending through its full length and possesses a slender 

 linear hilum/ 



Pseudechinolaena polystachya, Stapf in Prain FT. Trop. Afr. ix, 495 - Echi- 



noldma polystachya, H. B. & K. Nov. Gen. et Sp. i, 119, viL t. 679; Kunth 

 Enum. i, 172, Suppl. 127 ; Hitchcock Mex. Grass, in Contr. U. S. Nat. Herb, 

 xvii, 223; A. Chase in Proc. Biol. Soc. Wash, xxiv, 118. — E. Trinii, MoritzS 

 Syst. Verz. Zoll 102 —Lappago aliena, Spreng. Neue Entdeck.. iii, 15.— 

 Panicum uncinatum, Raddi Agrost. Bras. 41; Trin. Gram. Panic. 240, and" 

 Sp. Gram. Ic. t. 216 ; Kunth Enum. i, 172 ; Steud. Syn. PL Glum, i, 60 ; Hook, 

 f. in F.B.I, vii, 58 ; Trim. Handb. Fl. Ceyl v, 160. —P. glandulosum, Nees ex 

 Trin. Gram. Pan. 174, and Agrost. Bras. 128.— .P. nemorosum, 3 Trin. I.e.—/ 7 , 



