3G8 CLXXiii. GRAMINE^. (J. D. Hookcr.) lAgrojryron. 



rachilla usually jointed between the fl. gls. GL I and II empty, opposite, 

 (not collateral) narrow, unequal, persistent; fl. gls. rigid, awnedornot; 

 nerves 5-7, converginsr above ; keels of palea ciliate. Lodicules entire or 

 ciliate. Stamens 3. Ovary hispid at the top, styles short, distant. Gravi 

 narrow, grooved in front, adherent to the palea or not. — Species about 20, 

 in all temp, climates. 



The following arrangement and nomenclature of the Indian plants of this most 

 pnzzling genus is tentative only, and I cannot render tliese more worthy of con- 

 fidence without undertaking a critical study of the whole genus. The characters 

 given under the species must not be regarded as absolute, though founded on c*^^*^^ 

 study of very large series of specimens; for the more of these that are studied, 

 especially if they come from dift'erent localities, the more do exceptional characters 

 and connecting forms present themselves. It would hence appear that all the 

 members of the section Eu^agropyrum (perennials with dorsally convex not keele 

 fl. gls. to which all the Himalayan forms belong) will resolve themselves into a very 

 few widely distributed species. A further difficulty is the distinguishing Agroipyrurn 

 from EJ^mus, and indeed E. sihiricus from A. longe-aristatum, in which two plant* 

 the empty glumes are not placed side by side as in Eii/mus proper ; added to wmcn 

 the spikelets are often solitary in E. sihiricus, and I think sometimes aggregated 

 in A. longearistatum, var. Aiichisoni. A. caninum, Roem. & Sch. ; ^"^^^t!!,^^f ' 

 N.W. Ind. 44, has according to Duthte's mss. been found at Simla, alt. 6oOU tt., 

 by Gamble; and by himself in Gaugotri, alt. lC-11,000 ft. I have seen no 

 specimens. 



Spikelets awned. 



1. A. lon^e-arlstatum, Boiss. Fl. Orient, i. 660; stems leafy, 

 leaves flat or convolute, ppikelets loosely imbricate flattened lateraiy 

 6-12fld.. I and II Ion? or short 3-5-nerved, fl;?. ffls. spreading linear-lanceo- 

 la^^-g Q K J i ?j_ ^1 _ .• '.1 *? r_ _^ «°,nllv rpcarved 



awn 1 _^ _._ ^, ^ ^ ^ , „, 



vii. 1-27. Griseh. in Goett Nachr, (18G8) 73. Triticnm longearistatum, 

 Jaub. ^' Sp. 111. PL Orient, ii. t. 199; t^teud. Syn. Gram. 346. L eij 

 moides, Ilochst. ex A. Rich. Tent. FL Abyss, ii. 440; Steiid. L c. 



Temperate Himalaya; from Kashmir to Kumaon, alt, ^^^^^^' p _aia' 

 Easteen and Western Tibet, alt. 12-17,000 ft.— Distbib. Affghan, re . 

 Abyssinia. r^r^s 



Stem 1-3 ft., stout or slender, erect or aFcending from a tufted base. .j,,^^ 

 6-10 by |-J in., rarely convolute, and sheaths smooth; ligule very short. ^^^^^^^ 

 3-5 in., erect or nodding', or horizontal from the decurved top of a very ^^ ^^ 

 peduncle, rarely ovoid and very dense-fld. ; rachis slender, smooth ; ^^"^^^^^^^^^ 

 hollows 8C;iberulou9 or ciliohite. Spikelets sessile, remote or approximate, soin ^ ^^^ 

 crowded and secuud, \-% in. lonp: without the awns, green or blue-purple. ^ ^ ' ^q 

 II most vuriahle in U'ngth, \-l the length of the lowest fl. gl., ^^'IP^^^'T gig. 

 narrowly setaceous, awned or not, tip sometimes notched on one side; ^^'^^^^g. 

 narrowly lanceolate, smooth or scahrid, narrowed into a usually straight Du ^.j^j^ 

 times recurved stout or slender scabrid awn, prominently 5-nerved "^^^® f .Ig gwn ; 



rarplv tn tha Viaco fin crttn^fimi^a frtrttKi^rl iiiiM.ifAi'ollir nv f\r\ hnth sides Ot ^ ^ ,. _ 



nu., 1 anu ii long or snort o-o-uervea, ilg. gis. spreauiug i.xiL^a.'- - — - 

 3-.5-nerved towards the tip narrowed into a lon^r usually rectuve 

 L-l| in. long. Brachypodinm lon^earistatura, Boiss. Diagn. ^er. - 



rarely to the base, tip sometimes toothed unilaterally or on both Bides or .j^jg 



■palea coriaceous, keels ciliolate with erect teeth above the middle. LodicuW J - 



f 



I 



ciliate. Anthers short. Grain oblong, compressed.— Except by ^^®, .^^^pproach 

 am at a loss how to diagnose this variable grass, some states of ^^^^^ foUowinfr 

 Elymus sihiricus so closely that I can hardly distinguish them, ^'l® / effect 

 varieties arc represented amongst Persian specimens. I do not find that t y 

 definite localities or elevations in the Himalaya. .. gtrongl/ 



1. Gl. I and II very short oblong-lanceolate acute or acuminate usually 

 3-nerved, fl, gls. glabrous or nearly so except towards the tip. 



