348 CLXXIH. GRAMINEJ3. (J, D. Hooker.) [Glyceria. 



hyaline ; flg. gls. smooth, glabrous, 5-nerved, outer nerves short. Lodicules obliquely 

 ovate, acute. Anthers -^ in. Ovary obliquely ovoid; styles very short, subtermiual. 

 The long subacute flg. gls. are characteristic. 



4. G-. poaeoides, Stapf\ leaves complicate scabrid above, longest 

 branches of panicle 1-1| in., spikelets ^-\ in. 2-4-fld., gl. II about ^ in., 

 flg. gls. in. obtuse tip broadly hyaline. 



WESTERN TIBET ; Rupchu, grassy plains at the head of the Salt Lake, Thomson. 



Stems 1-lt ft., tufted, erect ; innovation extravaginal erect, their sheaths open 

 to near the base. Leaves 2-4 in., linear subacute, rather thick, smooth beneath, 

 ligule triangular ovate acute. Panicle 2-4 in., erect or inclined, rachis scabrid; 

 branches 2-4-nate, filiform, erect, sparingly divided, scaberulous, lowest very 

 unequal, lateral pedicels clavate. Spikelets oblong rather loose, pale green or 

 purplish, rachilla glabrous, disarticulating; gls. thin, finely ciliate-serrulate; callus 

 glabrous; I ovoid acute, 3-nerved, side nerves faint short; II similar with stronger 

 side-nerves; flg. gls. broadly elliptic-oblong, quite glabrous, dorsally rounded, 

 nerves obscure except with transmitted light ; keels of palea scantily shortly ciliate. 

 Lodicules obliquely ovoid. Anthers T a T in. Ovary pyriform, glabrous. 



121. FESTUCA, Linn, (by O. Stapf.) 



Perennial, rarely annual grasses. Leaves flat convolute or setaceous. 

 Spikelets 3- many-fld., in open or contracted sometimes spiciform panicles, 

 uppermost fl. imperfect; rachilla jointed below the flg. gls. not produced 

 beyond the uppermost imperfect. Glumes 5 or more ; I and II subequal 

 or unequal, empty, persistent, keeled; I 1- very rarely 3-nerved, II 3- very 

 rarely 5-nerved ; flg. gls. narrow, acute acuminate or awned, 5-7-nerved, 

 dorsally rounded, or keeled towards the tip only ; palea 2-keeled. Lodicules 2. 

 Stamens 3. Ovary glabrous or crown more or less hairy, not or slightly 

 enlarged ; styles terminal, rarely subterminal, stigmas plumose. Grain 

 ventrally concave or grooved rarely flat, glabrous or crown hairy, free or 

 more or less adherent with the palea, rarely with the gl., hilar area elongate. 

 Species many, chiefly of temp, climates. 



The species are for the most part extremely difficult of discrimination. 



Sect. I. EU-FESTUCA. Perennial. Empty gls. subequal. Stamens 3. 



A. Vernation of all the leaves conduplicate permanently, or cauline 

 more or less flat, always very narrow. 



* Flg. gls. strongly involute, tightly embracing the grain firm, scabrid 

 or if smooth not shining ; ovary glabrous, innovations always intravaginal, 

 their leaf-sheaths usually open to or near to the base, or middle in F. 

 Cumminsii. 



1. F. valesiaca, Sclileich. ex Gaud. Agrost. Helvet. i. 242 ; slender, 

 rigid, erect, leaves 2-6 in., panicle 1-2 in. narrow usually stiff, branches 

 very short, spikelets \ in. 3-4-fld., awn much shorter than its gl., anthers 

 linear ^V~T4 in., grain adherent to palea and often to the gl. Kunth Enum. 

 PI. i. 401, Suppl. 334 ; UeicM. Ic. Fl. Germ. t. 63 ; Steud Syn. Gram. 306. 

 F. duriuscula, & parviflora, Hack, in Herb. Dutliie, & var. tennis, Hack. 

 Monogr. Fest. Europ. 288. F. ovina, L., var. Pseudovina, Hack. I. c. F. ovina, 

 Host Gram. Austr. ii. 62, t. 86 (non Linn.). F. stricta, Herb. Royle. F. dubia 

 & F. filit'ormis, Jacquetn. mss. F. n. sp. Herb. Strach. fy Winterb. n. 2. 



