44 TRIANDRIA. DTGYNIA. 



character It is the form and proportion of the calix,bt'in^ 

 tumid and almost venlricose, nearly equal, and consi- 

 derably, sometimes, much larg-ertlKin the corolla g-lumes; 

 that there can be any g-enuine species of" JMilinm produc- 

 ing" spikes is extremely doub ful, yet 4 and now 5 species 

 with this anomalous habit are enumerated. One species, 

 tlie J\I. nigricans^ is used as an article of diet in Peru. 



Species. 1. M. .Jlmplucarpon. The only g-enuine species 

 of this genus appear confined to Europe, those of the 

 West Indies producing- spikes can have no distinct rela- 

 tion to the genus Milium so nearly allied to Agrostis. 



68. AGROSTIS. L, (Bent-grass.) 



Calix 2-valved, I -flowered, valves acute. 

 Corolla 2-vaIved. Stigmata longitudinally his- 

 pid or plumose. 



Flowers paniculate, spreading, with or without an awn, 

 small. Corolla glumes smaller, equal to or exceeding the 

 calix, in many species there are 2 minute hairy tufts near 

 the base of the inner valve. The A. Bromoides, A. aviin- 

 cUnacea, A. Calamagrostis, and A. Mexica7ia. with seve- 

 ral single flowered species ot Arundo ought with proprie- 

 ty to be restored to the genus Galamagrostis of Roth 

 and Withering, a name, at least significant, to all who are 

 acquainted witli the species which it embraces, and much 

 less exceptionable than many others which have been 

 employed in Natural Science. 



Species. § 1. awned. — 1. A. Spica venti (introduced). 

 2. tenuiftora. 3. paiicijlora. 4. strict-i 5. canina (introduc- 

 ed.) 6. sericea. fStipa sericea, Micn.^ 7. tinchopodes, E. 8. 

 arachnoides, E. (nearly related to the genus Trichodinm). 

 — § 2. without awns. — 9. decumbens. 10. vulgaris. 11. aspe- 

 ra. 12. cdba. 13. dispar. 14:. juncea. 15. indica. 16. clan- 

 destina. 17. latevifora. 18. * brevifolia--\ 19. glmica. If 



t Culm solid and compressed, somewhat cespitosely branch- 

 ing at the base, erect; leaves narrow subulate and erect, much 

 shorter than the culm: panicle composed of alternate appressed 

 and interrupted racemes; calix equal, shortly acuminate, much 

 shorter than the corolla, valves of the corolla glume nearly 

 equal, somewhat terete, coloured, the dorsal glume shortly mu- 

 cronate. 



Nearly allied to the A. indica, but the stem is not terete, 

 liut solid and ancipital. 



Obs. branches deeply cleft, leaves 2 to 3 inches long, culm 

 compounded, about a foot high, calix chaffy, about half the 



