8i 



5227 

 5228 



5229 



523 

 523 1 

 5232 

 5233 

 5234 

 5235 

 5236 

 5237 

 5238 

 5239 

 5240 



524 1 

 5242 

 5243 

 5244 



5245 

 5246 



5247 

 5248 



5249 

 525 

 525 1 

 5252 

 5253 

 5254 

 5255 

 5256 

 5257 





Californicus Benth. 



canescens Greene 



crassifolius Greene 



cnneatus Greene 



latilobus A. Gray 

 calthaeflorus Greene 

 canns Benth. 



Blankinshipii Robinson 

 cardiophyllus Hook. 



pirietorum Greene 

 ciliosus Howell 

 ctmeiformis Small 

 delphinifolius Torr. 



(ft. multifidus Pnrsh) 

 digitatus Hook. 

 Douglasii Howell 



(R. tenellus Nutt.) 

 Earlei Greene 

 Eisenii Kellogg 

 ellipticus Greene 

 eremogenes Greene 



degener Greene 

 Eschscholtzii Schlecht. 

 eximius Greene 

 fascicnlaris Muhl. 

 glaberrimus Hook. 

 Gormani Greene 

 Grayi Britton 

 Harveyi (A. Gray) Britton 

 Hartwegi Greene 

 hebecarpns H. & A. 

 hesperoxys Greene 

 hispidus Michx. 

 Howellii Greene 

 hydrocharoides A. Gray 

 hyperboreus Rottb. 

 inamoenus Greene 

 intermedius (Hook.) Heller 

 Jovis Aven Nelson 

 jvmiperinus Jones 

 Lapponicus L. 

 laxicaulis Darby 

 Lemmoni A. Gray 

 limosus Nutt. 

 Ludovicianus Greene 

 Lyallii (A. Gray) Rydb. 



{R. Greenei Howell) 

 Macauleyi A. Gray 



5259 Macounii Britton 



{R. hispidus Hook.) 



5260 macranthns Scheele 



5261 maximus Greene 



5262 micranthns Nutt. 



5263 microlonclius Greene 



5264 Mississippiensis Small 



5265 Missouriensis Greene 



5266 Montanensis Rydb. 



5267 muricatus L. 



5268 natans C. A. Meyer 



5269 nivalis L. 



5270 oblongifolius Ell. 



5271 obtusiusculus Raf. 



(R. ambigens Wats.) 



5272 occidentalis Nutt. 



5273 brevistylis Greene 



5274 robustus A. Gray 



5275 ultra-montanus Greene 



5276 ocreatus Greene 



5277 Oreganus (A. Gray) Howell 



5278 orthorhynchtis Hook. 



5279 platyphyllus A. Gray 



5280 ovalis Raf. 



(A', rhomboideus Goldie) 



5281 oxynotus A. Gray 



5282 Pallasii Schlecht. 



5283 palmatus Ell. 



5284 parviflorus L. 



5285 parvulus L. 



5286 pedatizdus J. E. Smith 



(R. affinis R. Br.) 



5287 cardiophyllus (Hook.) 



Britton 



5288 Pennsylvanicus L. f. 



5289 Populago Greene 



5290 Porteri Britton 



5291 Purshii Richards. 



5292 pusillus Poir. 



5293 Lindheimeri A. Gray 



5294 pygmaeus Wahl. 



5295 Rattani (A. Gray) Howell 



5296 recurvatus Poir. 



5297 repens L. 



5298 reptans L. 



5299 rugulosus Greene 



5300 Sabini R. Br. 



5301 samolifolius Greene 



