210 BOTAmOAL MAOAZINR tvoi. xvil. 



II. 2, p. 321; Bretschn. Hist. Eur. Bot. Disc. Chin. p. 862; Pilger in 

 Diels Fl. Centr-Chin. in Engler's Bot. Jabrb. XXIX. p. 222. 



Perennial, tall, attaining about 1| m. or more in height. Rhizome 

 short, repent, ramose, ligneous, nigrescent, clothed with old sheaths above, 

 rooting, with very close nodes. Culm erect, often geniculate below, slender, 

 terete, iistulose, green, finely striate when dried; nodes remote, glabrous, 

 hardly prominent. Leaves thinly chartaceous, resupinate by the twisting 

 of the base ; radical ones tufted, linear or linear-lanceolate, gradually long- 

 acuminate, glabrous and green above, finely scabrous and glaucous beneath, 

 scabrous-margined, contracted into a slender petiole at the base, attaining 

 about 60cm. long, 7-25 mm. broad; midrib slender; lateral main veins 4-5 

 on each side ; veinlets close ; ligole produced, subulato-lanceolate, obtuse, 

 chartaceo-membranaceous, about 10-25 ram. long ; sheath long, glabrous or 

 scabrous, straight, striate ; cauline leaves loosely placed, broader than the 

 radical ones, linear-lanceolate or angustato-lanceolate, gradually long-acuminate, 

 gradually cuneato-attenuated towards the base, attaining 50 cm. long, 3i cm. 

 broad, finely scabrous on the margin and both surfaces, green above, 

 subglaucous beneath ; midrib slender ; lateral main veins about 5-7 on each 

 side ; ligule produced, ovato-lanceolate, membranaceous, about 7-13 mm. 

 long; sheath long, glabrous, terete, striate, glabrous on margin. Panicle 

 large, erect, pyramidal-conical or pyramidal-ovate, attaining 45 cm. long, 

 24 cm. wide, very loose, remotely with 7-8-verticils ; common rachis straight, 

 slender, terete, subscabrous ; branches patent, verticillate or semi-verticillate 

 with sub-numerous to few unequal ones, rigidulous, capillaceous, scaberulous, 

 usually with loose and adpressed branchlets, the longest one attaining about 

 21 cm. Spiculae 1-flowered, solitary, laxly and secundly disposed, articu- 

 lated to the top of pedicels, adpressed or erect-patent, oblong-linear or 

 lato-linear, acute at the apex, more or less narrowed below, terete, virides- 

 cent, 4-5 mm. long, the lateral ones very shortly pedicellate. 1st glume 

 oblong-lanceolate, obtuse, hyalino-membranaceous, minuteliy scabro-ciliated, 

 with 1 nerve not reaching to the top, or 3-nerved at the base, about 

 2-J mm. long; 2nd glume longer than the 1st one, ovate-lanceolate, obtuse, 

 entire, hyaline, extremely thin towards the upper margin, nearly smooth 

 dorsally, with 3 nerves which exceed the middle but not reach to the top 

 and are connected with a venule above, about 3 mm. long ; 3rd glume 

 scarcely longer than the 2nd one, elliptico-ovate, obtuse, light green, hyalino- 

 membranaceous towards the margin, strongly 3-nerved, sometimes sub-5- 

 nerved, nearly smooth dorsally, about SJmm. long; 4th glume slightly 

 longer than the 3rd one, lato-elliptical, obtuse-truncate at apex, hyaline- 



