396 97. GBAMIUTE^. 



[15. Stipa. Spikelets stalked: Pales coriaceous; outer cy- 

 lindrical, convolute, evidently jointed to the kneed twisted 

 feathery awn.] 



16. MiLiTTM. Spikelets stalked. Pales like parchment, awn- 

 less ; lower ventrioose, convex. 



Tr. IX. AGROSTIDEM. Spikelet^, laterally compressed, 1- 

 flowered,, or with a superior rudiment, or many-floweied. 

 Gl. and pales membranous.,, ' 



\ Gl. falling sliort of the meter pale. Style long. Stigmas often 

 ' protruded near the middle of the flower. 



17. Pheagmites. Pan. diifuse. Gl. unequal ; lower much 

 smaller. Fl. 2 — 6, awnless, with silky hairs at their base ; 

 lower imperfect. Lower pale acuminate, much exceeding 

 the inner, awnless. . . 



tt Gl. exceeding the flowers. Style short or none. 



18. PsAMMA. Pan. spUtelike. Gl nearly equal; lower rather 

 the shorter. Fl. 1, with silky hairs at its hasp, with a su- 

 perior rudiment. Lower pale with a very short awn. 



19. Calamageostis. Pan. diifuse. Gl. nearly equal ; lower 

 rather the longer. Fl. 1, vsdth silky hairs at its base, with 

 or without a superior rudiment. ' Lower pale awned. 



20. Apbea. Pan. loose. Gl. membranous, acute, ima,nned ; 

 ' 'Ipioer the sfhaller. FL 1, with hairs at its base, and a pe- 

 dicel-like rudiment. Pales unequal, scarious ; lower with 

 a long subterminal awn. 



21. Agbostis. Pan. loose. Gl. membranous, acute, un- 

 armed; upper s'tnallcr. Fl. 1, with hairs at its base; no 

 rudiment. Pales unequal, scarious ; dorsal awn falling short 

 of the glumes, or 0. — :A. canina wants the inner pale. 



[22. Laqueits. Pan. spikelike. Gl. scarious, ending in a 

 long fringed bristle. Fl. 1, with a pedicel-like rudiment. 

 Lower pale ending in 2 long bristles and with a dorsal kneed 

 twisted awn.J 



23. PoLYPOGON. Pan. close, spikelike. Gl. scarious, each 

 with a long bristle from just below the notched tip. Fl. 1. 

 Lower pale usually awned from just below the tip. 



24. Qasteidium. Pan. close, spikelike. Gl. membranous, 

 acute, awnless, ventrioose at the base, much exceeding the 

 flower. Fl. 1. Lower pale truncate or toothed at the end, 

 with or without a dorsal awn. 



