76 PANIC Al'E.E. 



narrowest, tlic tliircl sometimes standing as the floral glume of a 

 terminal staminato Hower; lloral glume and palea membranous, the 

 former of the perfect ilower terminating in a twisted awii. 



Tropieal grasses, somewhat nearly related to Aitdrtipdijoiteit' and 

 Pan ice m. 



This tribe was first proposed l)y Xees, and partly adoi)ted and 

 extended l)y Muuro and Bentham. 



They dilt'er from Panicea? and approach Andropogoneae in the 

 thin textui'e of the fioral glume and palea, and by the frequent 

 presence of a slender, often bent awn on the floral glume. They 

 differ from Aiulropogonea3 in their inflorescence; the spikelets 

 singly scattered, or clustered along the inarticulate branches of the 

 panicle. The tribal nanu> comes from TrLsfe(/ii< Nees, a name given 

 to the genus JleUiiis sui)posing the forms to be new. 



20. (51). Arundinella Waddi. Agrost. liras. 37, 1. 1. f. 3 (1823). 



Gohlbttrhia'Vvxw. Spreng. N. Entd. 2:81 (1821). 



CdlaniurJiIoe Keichb. C'ons]). 52 (182S). 



Thymmwhne Presl, Thysan. Nov. PI. Gen. (1829). 



Brandtia Kunth, Kev. Gram. 2:511, t. 170 (1830). 



Riedelia Trin. Kunth, Enum. PI. 1:515 (1833). 



Acmtheniiu Link, Ilort. Berol. 1:230 (183-1). 



Sjnkelots acute or acuminate, with 1 tei'iniual, ])erfcct flower 

 and often a second staminate (»ue below it, in a loose termimd i)an- 

 iclc. Glumes 4. the three outer ones ofteu pointed, but not awned, 

 the second longer than the others, the third with a i)alea or male 

 flower in its axil; terminal lloral glume smaller, thinner, livaline, 

 with a tine awn twisted in the lower part iind l>eut back at or below 

 the middle; palea smaller. Stamens 3. Styles distinct. Grain 

 oblong, included, but not adherent. 



Low or tall grasses with a termimd ])anicle. A trojtical or snb- 

 trojjical genus, containing 25 species, chielly Asiatic, witii a few 

 African ami American s})ecies. 



1. A. Palmeri Vasey iiied. 



Culms smooth, sparingly branching, al)out 00 cm. liigh. Ligule 

 ciliate. about 1 mm. long; blades of the culm rigid, erect, involute, 

 scabrous. 15-20 cm. long. ;}-5 mm. wide. Panicles rather densely 



