ANDROPOGONE^. 

 Introduced into California from eastern Asia. 



35 



b W A 



Fig. 11. — EremocMoa leersioides. A, spikelet, X 10 ; ft, c, florets. (Scribner.) 



12. (92). Teachypogon Nees, Agrost. Bras. 341 (1829), in 

 part. 



Spikelets 1-flowered, in pairs at the nodes of the rachis of a 

 simple 1-sided spike, a siibsessile staminate awnless spikelet and an 

 awned pedicelled, pistillate or perfect spikelet. Empty glnmes 

 3-4, the outer 1 firm, awnless, enclosing the others, second nar- 

 rower but similar, third empty, very delicately hyaline, narrow, 

 very small ; terminal glume in the sessile spikelet delicately hya- 

 line, awnless, in the pedicelled spikelet hyaline below, above bearing 

 a long twisted awn; palea very small or 0. Stamens 3. Styles 

 distinct. Grain oblong, included, not adlierent. 



Tall tufted perennial grasses, with long narrow, flat or involute 

 leaf-blades. Spikes solitary or 2 or 3 and sessile at the apex of 

 the peduncles. Spikelets slightly imbricated and appressed to 

 the rachis. Nearly related to Heteropogon. 



Found in tropical America and in Africa and Australia. 



Anderss. in (Efvers. Vet. Akad. Stockh. 1857, enumerates 

 11 species, 1 of which is African and the rest peculiar to tropical 

 and subtropical America, including Brazil and Mexico. Hackel 

 places them all in one species with many subspecies and varieties. 



1. T. polymorphus Hack., Mart, et Eichl. Fl. Bras., 2, pars. 

 6 : 263 (1883). 



A slender erect perennial grass, 60-90 cm. high, hairy 

 at the nodes. Sheaths terete, longer than the inter nodes, more 

 or less pubescent; ligule firm; blades narrow, flat or convolute, 

 glaucous, rigid, the lower 20 cm. long, the upper 5-8 cm. 



