Muehlenbergia.] CLXXIII. GRAMINE^. (J. D. Hooker.) 259 



acute or minutely 2-toothed awned, awn very slender not twisted ; palea 

 oblong, as long as the gl. or longer, 2-nerved, nerves almost meeting in 

 the tip ; callus minute. Lodicules 2, very minute. Anthers short or long. 

 Styles free, stigmas short. Grain cylindric, free in the gl. and palea. 

 Species about 60 chiefly temp. American. 



The above character applies to the Indian species ; of the American -some have 

 only one empty gl., in others gl. Ill is awnless or 5-nerved. 



1. HE. sylvatica, Torr. & Gr. ex Trin. in Mem. Acad. Petersb. 

 Ser. VI. vi. II. (1845) 292 (excl. syn. viridissima) ; panicle erect contracted 

 interrupted, branches very short flg. to the base, spikelets very shortly 

 pedicelled, gl. I and II ^-^o in. lanceolate acuminate, III about as long, 

 awn - in. Steud. Syn. Gram. 179 ; A. Gray Man. Sot. N. U. St. 612, 

 t. 8 ; Duthie Grass. N.W. Ind. 28. M. Duthigeana, Sack, in Herb. Duthie. 

 Agrostis diffusa, Muehlb. Descr. Gram. 64. A. sylvatica, Torrey Fl. N. Am. 

 i. 87 (non Linn.}. 



WESTERN HIMALAYA ; from Kashmir to Kumaon, alt. 4-9000 ft., Royle, &c. 

 DISTEIB. Japan, N. Am. 



Stem 1-3 ft., very slender, branched, decumbent and creeping below. Leaves 

 3-5 by -^Q-^ in., smooth or scaberulous ; ligule very short, lacerate. Panicle 4-6 in., 

 pale green or violet ; rachis and very short erect branches and pedicels scabrid. 

 Spikelets crowded, erect; gls. I and II subeqnal, 1-3-nerved, keels scabrid; III 

 minutely notched at the tip, hairs much shorter than the gl. ; palea about as long as 

 its gl. 



2. IMC. viridissima, Nees ex Steud. Syn. Gram. 178 ; panicle elon- 

 gate much fastigiately branched flexuous interrupted branches and pedicels 

 slender, gls. I and JI ^j-yV ^ n - equal or unequal, III twice as long 

 or longer, awn -1 in. Duthie Grass. N.W. Ind. 28. M. Huegelii, Trin. 

 in Mem. Acad. Petersb. Ser. VI. vi. II. (1845) 293. M. geniculata, 

 Nees ex Steud. Syn. Gram. 178 ; Duthie 1. c. Podosaemum, Wall. Gat. 

 n. 3778. 



TEMPERATE HIMALAYA, alt. 3-9000 ft., from Kashmir to Sikkim and the 

 KHASIA HILLS. 



Habit of M. sylvatica, but usually a larger grass, with longer broader leaves and 

 a loose interrupted flexuous bright green panicle often a foot long. Spikelets shortly 

 pedicelled ; gls. I and II very variable, both ovate-lanceolate 1-nerved and shortly 

 awned with scabrid keels and awn, or I much smaller oblong or orbicular erose 

 and nerveless. 



3. BI. himalayensiSj Hack, in Herb. Duthie n. 10,128; panicle 

 elongate much fastigiately branched interrupted, branches and pedi- 

 cels slender, gls. 1 and II - in. subequal lanceolate acuminate or 

 subaristate, III as long as I and II or rather longer, awn |-1 in. 



WESTERN HIMALAYA, alt. 6-7000 ft., from Chamba to Simla, Thomson, 

 Madden, &c. 



/Stem 12-18 in., very slender, decumbent or ascending, branched. Leaves narrow, 

 flaccid ; ligule oblong. Panicle 3-6 in., very narrow, slender, flexuous, flaccid, 

 branches distant. Spikelets bright green, glistening, larger than in sylvatica and 

 viridissima to which latter it is most nearly allied, differing in being more slender with 

 narrower leaves, in the laxer, fewer fld. panicle, in the larger spikelets, and in gl. Ill 

 not being much longer than I and II. 



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