TR 



capillar is, 9. 

 jyhatica, 16. 



alba. 10. 



puinila. 19. 



minima. 1 1 . 

 virginica. 12. 



mexicana. 20. 



indica. 13 



cruciata. 15. 



radiatd. 14. 



ienacijjima. 



lANDRIA. DIGYNIA. AgroftlS. 97. 



A. panicle capillary expanding, calyxes awlM equal 

 hifpidifh colour'd, florets a v/nlefs. capillary, 



A. panicle cortd^nfed avvnlefs, caiy :es equal : the 

 virgin ones flicrter than the corol, the fecun- 

 dited one twice as long. wood. 



A. paiiicle looie, calyxes awnlefs equal, culm creep- 

 ing, white, 



A. panicle awnlefs one-rank 'd, culms fiifcicled ereft. 



dwarf, 



A. panicle awnlefs thread-form. lea/L 



A, panicle contracted awnlefs, leaves involute-wing- 

 like ri2;id (landing cut. virginian, 



A. panicle oblong collected, calyxes and coroL poin- 

 ted fubequal awnlefs. jnexican. 



A. panicle contracted awnlefs, racemes lateral erect 

 alternate. indian, 



A. fpikes fourfold crofs'd fmooth at the bafe, valvelets 

 petal -like awn'd. crofs'd, 



A. fpikes moftly fivefold crofs'd villous at the bafe, 

 valvelets petal-like awn'd. radiate, 



A. panicle contracted thread-form, flowers awnlefs 

 linear, valvelets parallel. B. moji tenacious. 



81. AIRA. 



arundinacea. 4... 

 minuta, 5. 



aquatic a, 6. 

 capcnfis, 



fuhfpicata. y . 



ccefpitofa. 8. 



ficxuoja, 9. 



montana, 10. 



Cal,. 2-vaIved, 2-flovv''er'd. Florets with- 

 out an interpofed rudiment, 



* avjnlefs. 



A. panicle oblong one-rank'd awnlefs imbricated, 

 leaves flst. reedy, 



A. panicle loofe almoft level-top'd remoteft florets 

 awnlefs. minute, 



A. panicle expanding, flowers awnlefs polifh'd longer 

 than the calyx, leaves flat. aquatic, 



A. culm branchy, flowers racemed, corols hairy. S, 



cape, 



* * aivnW, 



A. leaves flat, panicle fpiked, florets awn'd on the 

 middle ; awn refle6ted loofe. fuhjpiked, 



A. leaves flat, panicle expanding, petals villous and 

 awn'd at the bafe : awn ftraiglu fhort. turfy, 



A. leaves briftly, cuims nakediih, panicle diva- 

 ricated, peduncles winding. winding, 



A. leaves brifl:iy, panicle narrovv'dj florets hairy at the 



bafe awn'd: awn twifted longer. ?nountain. 



N U. A, 



