If- 



262 CLXXIIT. GBAMiNBJB. (J. D. Hooker.) [Calamagrostis. 



oblong- dense-lid., spikelets usually dark purple. C. tartarica, Jacquem. mss. C. 

 laxa, var. robustior, Serb. Hf. & T. Common in the drier districts especially in 

 Western Tibet. 



5. C. Stolizkai, Hook. f. stem short stout, leaves erect convolute, 

 panicle short oblong contracted dense, spikelets % in. shortly pedicelled, 

 gl. I and II subequal lanceolate acuminate scaberulous, III about ^ 

 shorter than II tip truncate 4-aristulate, awn terminal exserted, palea as 

 long as its gl., hairs of callus rather longer than gl. Ill shorter than I and 



WESTEEN TIBET ; Zanskar, on tbe Pensi-la, alt. 12-15,000 ft,, StolizTca. 



Stem 18-24 in., erect. Leaves 3-6 by - in., very scabrid above; sheaths 

 scaberulous; ligule oblong. Panicle 4 in. ; branches short, erect or suberect, scabrid. 

 Spikelets erect, crowded, pale, shining; gl. I and II hyaline, sub 3-nerved ; III 

 glabrous, hairs of callus unequal in length ; awn about twice as long as the spikelet, 

 straight, shortly exserted. I have seen only two specimens. 



6. C. debilis, Hook. f. ; very slender, leaves short very narrow, 

 panicle narrow, branches few rather short laxly flowering and pedicels 

 capillary, spikelets in. pale, gls. I and II unequal lanceolate acuminate 

 keels quite smooth, III about \ shorter than II or less, tip truncate erose, 

 awn dorsal in upper third of the gl. exserted, palea as long as its gl., 

 hairs of callus = gl. I and II. 



SIKKIM HIMALAYA; Chola, alt. 11,000 ft., J.D.H. 



Stem 12-18 in., tufted, geniculate below. Leaves distant, 1-2 by T V fV * n '> 

 flat, quite smooth, upper shorter spreading; sheath smooth; ligule oblong. 

 Panicle 25 in., branches and branchlets smooth. Spikelets pale purplish brown, 

 long-pedicelled; gl. I and II 1 -nerved ; III glabrous, 5-nerved. Anthers very 

 small. : I found this very delicate species only once and then late in the season, 

 the very small anthers are peculiar. 



ft Hairs of callus much shorter than gl. III. 



7. C. tripilifera, Hook. f. ; very slender, leaves short narrow flat, 

 panicle of few very long wide spreading 2-3-nate branches sparingly 

 divided towards the ends, spikelets in. long-pedicelled, gls. I and II 

 subequal lanceolate acuminate, III firm ^ shorter than I tip truncate 

 with 2 short lateral awns and a median dorsal exserted awn, palea 5 

 shorter than its gl., hairs of callus very unequal. 



SIKKIM HIMALAYA ; in the drier interior, alt. 10-13,000 ft. J. D. H. , Clarke, 

 King's Collector. 



Stem tufted, 8-18 in., erect, hardly thicker than pack-thread. Leaves 4-6 by 

 -jL-i in., rather flaccid, quite smooth ; sheaths smooth ; ligule oblong. Panicle with 

 few whorls of few quite smooth capillary branches 1-2 in. long each bearing 3-5 

 glistening pale yellow on dull purplish spikelets on pedicels longer than themselves ; 

 gls. I and II 1 -nerved, quite smooth, even the keels; III glabrous, rather strongly 

 4-nerved, tip with mucros between the lateral and middle awns, the latter of 

 which is stiff and nearly twice as long as its gl. ; callus hairs nearly half as long as 

 gl. III. 



Var. Cumminsii ; panicle contracted, branches much stouter appressed to the 

 rachis, spikelets Jg-j- in. N.E. Sikkim, Cummins. Perhaps a different species, but 

 the stems, about a span long, being curved in a semicircle, show that the plant 

 has grown under unfavourable conditions. 



