GENERA OF GRASSES OF THE UNITED STATES. 



75 



of leaves and spikelets connected by the slender internodes. This 

 species and two others, T. avenacea H. B. K. and T. nealleyi Vasey, 



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agree in having deeply 2-lobed lemmas, the midnerve excurrent be- 

 tween the lobes as an awn. The last two species and T. pilosa ( Buckl. ) 

 Merr. have short, spikelike panicles, but the last species differs in 



