BEScnipnoN or plates. m, 



PoA. a P. dinantha, n. m. 6 Spikelet m. e Flower, d P. debilis, n. m. 

 e Spikelet in. / Flower. 



Bkizopyehm. a B. epicatum, 9 , n. m. 6 Spikelet $ , D. m. c Spikelet S , n. 

 m. d Flower ? open, e A stamen of i . 



Glyceria. a G. aquatiea, n. m. 6 Spikelet m. c Flower, d G. Canadensis 

 u. m. e Spikelet m. /A pale. 



Beiza. u B. media, dim. b Spikelet n. m. c Flower. 



Uniola. a tr. latifolia, spikelet n. m. 5 Flower, c Glumes, d U. gracilis, 

 u. m. e Spikelet m. 



Phkagmites. a P. communis, spikelet n. m. 6 A flower open. 



Arundinaiiia. a A. maorosperma, spikelet u. m. b Flower, c Same with 

 fruit. 



Leptcetjs. a L. paniculatus, dim. 6 Raceme n. m. c Spikelet in flower, m. 



HoEDEUM. a H. jubatum, half size, b Spikelet n. m. 



Elymds. a E. Virginlcus /3 arouatus, spikelet n. m. 6 E. Canadensis, spikelet 

 u. m. c Flowers, d E. Hystrix, spikelet n. m. 



LoLiuM. a L. percnne, n. m, 6 L. temulentum, spikelet n. m. c Flower 

 open, m. 



V. 



Teiticum. a T. repens, n. m. 6 A flower, c T. vulgare, spikelet n. m. 

 d Ovary, scales, and styles. 



Leptoculoa. a L. fascicularis, branch, n. m. b Spikelet. c L. filiformis, n. m. 

 d Spikelet 



Gtmnopogon. a G. raoemosum, branch, n. m. b Glumes, c Pales, d G. fil- 

 iformis, branch, n. m. e Spikelet m. d Spikelet closed. 



Cynodon. a C. Dactylon, dim. c Spikelet in flower, b Portion of spike. 

 d Glumes. 



Eleusine. u E. Indica, am. 6 Spikelet m. c Spikelet in fruit. 



Spaetina. a S. polystachia, branch, n. m. 6 Spikelet. c Flower without the 

 pales. 



BouTELOUA. c B. curtipondula, n. m. a Spilcelet b B. hirsuta, spikelet. d Tho 

 abortive flower. 



Tripsacum. a T. dactyloides, n. m., 9 pistillate flowers. $ etaminate flowers. 



EoTTBCELiA. 6. B. rugosa, n. m. c A joint of the spike with one sessile, fer- 

 tile spikelet, and one pedicelled, abortive spikelet. 



Stenotapiirum. r S. dimidiatum, under side of the spike. 



Cteniu.m. a C. aromaticum, n. m. b Spikelet in fruit. 



EKiANTnus. a E. alopecuroides, a joint of the rachis and spikelet, n. ni. 

 b Spikelet m., in fruit, c E. brevibarbis, spikelet and joint of rachis, n. m. 



Andeopoqon. a A. scoparius, several spikelets, n. m. 6 One spikelet, m., 

 with a joint of rachis. c A. Halei, 2 spikelets, n. m. d Spikelet, m., with a joint 

 of rachis. 



Zea. a Spikelet, staminatc, from the tassel, b Spikelet, pistillate and fertile, 

 from the ear, with its long style. 



