Poa, 0. Stapf.] CLXXIII. GRAMINE^I. (J. D. Hooker.) 339 



much lotiger, up to 2-i in., smooth, open or not, uppermost remote from the panicle ; 

 ligule of the lower and of the surculi very short, truncate, ciliolate, of the upper 

 longer, ovate, sparingly coarsely denticulate. Panicle up to 2 by 2 in., lax or 

 dense, lower branches more or less spreading, usually naked in the lower half; 

 branchlets short, scaberulous. Spikelets crowded, usually parti-coloured, the 

 lower shortly upper longer-pedicelled ; gls. thin, Iy in., 3-nerved, lateral nerves 

 faint or one obsolete, margins subentire, keel rough; II similar, but rather broader ; 

 fl. gls A- -f in., often emarginate; palea hardly shorter, keels ciliate below the 

 middle, serrulate above it. Anthers ^ s in., oblong. 



ft Spikelets narrower, gls. all or flg. especially firmer, I and II 

 lanceolate or oblong-lanceolate. 



a. Gls. all firm; 1 fy II acute or sub acuminate, I 1- or sub o-nerved; 

 anthers T V~iV ^ n - Rather tall robust or subrobust species, stoloniferous 

 when flg. ; stems smooth. Pratenses. 



4. P. tibetica, Munro ex Duthie Grass. N.W. 2nd. 41; tall, stout, 

 stoloniferous, leaves linear acute firm, ligule short truncate, panicle con- 

 tracted or spiciforrn, lower branches 2-4-nate unequal smooth, spikelets 

 -| in. 4-6-fld. pedicelled crowded pale, gl. I ovate-lanceolate margin 

 hardly hyaline, II ciliate on the margins towards the base, fl. gls. oblong, 

 tips only hyaline, keel alone silkily hairy, lateral nerves obscure, wool 0. 



WESTERN TIBET, alt. 9-16,000 ft. ; Piti, Jacquemont ; saline plains of Ladak, 

 &c., Thomson. PLAINS OF TIBET N. of Kumaon, alt. 15,OJO ft., Strachey fy 

 Winterbottom (Pea, n. 1.) 



Stem 12-20 in., stout, terete, smooth, closely sheathed below, 1-2-leaved much 

 below the panicle. Leaves, lower 8 in., upper 2-3 by -| usually plicate, glab- 

 rous, smooth; sheaths firm, upper very long, smooth; ligule T V in., firm, ciliolate. 

 Panicle about li in. long, narrow, interrupted; lower branches 2-nate, the longer 

 appressed to the rachis, and branchlets smooth. Spikelets crowded, all pedicelled, 

 oblong, pale ; gls. firm, I |-f in., subacuininate, sub 3-nerved, keel minutely 

 scaberulous, margins hardly hyaline; II rather larger, more oblong ; fl. gls. |-J- in., 

 subacute, ciliate on the margin towards the base, lateral nerves obscure; palea 

 rather shorter, keels subserrulate. Anthers -^ in., linear. 



Var. aristulata, Stapf; gls. more acuminate often very shortly aristulate. 

 Eastern Tibet, N. of Sikkim, alt. 16-17,000 ft. J. D. U. 



5. P. pratensis, Linn. Sp. PI. 67 ; tall, stout, stoloniferous, leaves 

 usually flat acute upper much the shortest, ligule truncate or subobovate, 

 panicle ovate or oblong lower branches usually 5-nate, spikelets -i in. 

 3-5-fld. ovate acute crowded green, gl. I ovate-lanceolate acute, flg. gJs. 

 oblong upper -i hyaline nerves prominent, keel and lateral nerves silkily 

 hairy to the middle or above it, wool copious, keels of palea scabrid-serrate. 

 Host Gram. Austr. ii. 44, t. 61 ; JEngl. Bot. t. 1073 ; Knapp Gram. Britt. I. 

 55 ; Kunth Enum. PL i. 352, SwppL 297 ; Steud. Syn. Gram. 251 ; Eeichd. 

 Ic. Fl. Gtrm. t. 88 ; T. Nees Gen. Fl. Germ. Monocot. i. n. 56 ; Ledeb. FL 

 Ross. iv. 378 ; Boiss. Fl. Orient, v. 601 ; Griseb. in Goett. Nachr. (1868) -74 ; 

 Duthie Grass. N.W. Ind. 40. P. alpina, Griseb. I.e. (Herb. Schlagintw. n. 

 2772.) 



WESTERN HIMALAYA ; from Kashmir to Kumaon, and WESTERN TIBET, alt. 

 5-15,000 ft. BHOTAN, Griffith. DISTRIB. North temp, regions. 



Stems 6-20 in., smooth, terete. Leaves crowded at the base of the stem, linear, 

 rarely plicate or subinvolute, firm (flaccid in shade), margins asperulous, glabrous or 

 rarely sparsely hairy, lower very variable in length, upper |-1 in. by ^"o" m - lowest 

 sheaths firm, close ; upper much longer, 4 in. and upwards, smooth ; ligule rarely more 



z 2 



