Biological Papers. 69 



Order XVI. Family 53.—continu(d. 



Tribe /(. Chloridete. Crowfoot-grass tribe. 

 Genus 146. Cynodon. Bermuda grass. 



147. Spartina. Cord-grass. 



148. Chloris. Windmill-gras?. 



149. Gymnopogon. Naked-beard-grass. 



150. Schedonnardus. Tumble-grass. 



151. Bouteloua. Grama grass. 



152. Beckmannia. Slough grass. 



153. Eleusine. Goosefoot-grass. 



154. Leptochloa. Slender-grass. 



155. Buchloe. Buffalo-grass. 

 Tribe i. Festuceae. Meadow-grass tribe. 



Genus 156. Pappophorum. Brush-grass. 



157. Gynerium. Pampas grass. 



158. Arundo. Reed-grass. 



159. Phragmites. Reed. 



160. Munroa. Thistle-grass. 



161. Triodia. Purpletop-grass. 



162. Redfieldia. Blowout-grass. 



163. Diplachne. Feather-grass. 



164. Eragrostis. Meadow-grass. 



165. Melica. Melic-grass. 



166. Diarrhena. Twin-grass. 



167. Distichlis. Alkali-grass. 



168. Uniola. Spike-grass. 



169. Briza. Quaking-grass. 



170. Dactylis. Orchard-grass. 



171. Cynosurus. Dog-tail grass. 



172. Poa. Blue-grass; spear-grass. 



173. Glyceria. Manna-grass. 



174. Puccinellia. Goose-grass. 



175. Festuca. Fescue-grass. 



176. Bromus. Brome-grass. 

 Tribe k. Hordeete. Rye-grass tribe. 



Genus 177. Lolium. Darnel; ray-grass. 



178. Agropyron. Wheat-grass. 



179. Triticum. Wheat; emmer; spelt. 



180. Secale. Rye. 



181. Hordeum. Barley. 



182. Elymus. Lyme-grass; wild-rye. 



183. Sitanion. Bristle-grass. 



184. Hystrix. Bottle-brush-grass. 

 Family 34. Bambusace^e. Bamboo family. 



Genus 185. Arundinaria. Cane. 

 186. Bambusa. Bamboo. 

 Order XVII. CYPERALES. The Sedges. 



Family 35. CvPERACEiE. Sedge family. 



Genus 187. Cyperus. Sedge; cyperus. 



188. Kyllinga. Bur-sedge. 



189. Dulichium. Reed-s«dge. 



190. Eleocharis. Spike-rush. 



191. Fimbrystylis. Fringe-rush. 



192. Scirpus. Club-ruah; bulrush. 



193. Eriophorum. Wool-rush. 



194. Fuirena. Bog-rush. 



194. Hemicarpha. Bog-rush. 



195. Rynchospora. Beak-rush; beak-sedge. 



196. Cladium. Twig- rush. 

 Family 36. Caricace;e. Carex family. 



Genus 197. Scleria. Nut-rush; nut-sedge. 

 198. Carex. Carex; hop-sedge, etc. 



