16 



Eriogontjm heuacleoides, ISntt Utah. 



Eriogoisum umbellatum, Torr. Nevada and Utah. 



Eriogonum ovalifolium, Niitt. Kortheru Nevada. 



Ertogonuh ELATU3I, Dougl. Nevada. 



Eriogoiviim fasciculatum, Benth., var. poltfolium, Torr. & Gmy, 

 Nevada. 



Eriogonum corymbosum, Benth. Arizona. An elongated form. 



Ertogonum mtorothecu^Ij Nutt., Utah j and var. EFFUsmi, Torr. & 

 Gray, Arizona ; also a form between var. co:n^fertiflorum, Torr. & 

 Gray, and var. Fendleriainujvi, Benth., but with larger flowers than 

 usual. 



ERLpGONITM breyicaule, Nutt. Utah. 



ERioGOTcrM RACEMOSUM, Nutt. Nevada and Utah. 



Eriogonum Wrightii, Torr. Arizona. 



ERIOGO^'UM Heermanni, Diir. Nevada. 



Eriogonum GRACiLE, Benth., var. effusum, Torr. & Gray. Nevada. 



Eriogonum deflexum, Torr. Arizona. 



Eriogonum cernuijm, Nutt, var. te^x'E, Torr. & Gray. Nevada. 



Eriogonum inflatum. Torr, Nevada and Arizona. 



r 



V 



CHORizANTnE KitaDA, Torr. Nevada or Arizona. 

 CoMANDEA UMBBLLATA, Nutt. Nevada. 



AKCEUTHOBirM DiVAEiOATUM, Engelm., iued. TLe staminate plaut 

 only ; the species is parasitic upon Fimis eduUs. Utah. 



I'HORADENDEON PLAVESCENS, Nutt., var. VILLOSITM, Eugelm., in Gray, 

 Fl. TAndh. 212. Arizona. 



Phoeadendron Califoenicum, Nutt. Engelm., PI. Lindh. 213. Ari- 

 zona. 



JUNiPEEiNUM,Engelm.,iuGray,PZ.^e/iJZ.i58. Arizona. 

 AKE3IOPSIS Californica, Hook. Nevada. 



/"TiupnoRBiA SERPYLLiFOLiA, Pers. Utah. 

 Euphorbia glyptospeema, Engelm. Utah. 

 Euphorbia alboxarginata, Torr. <& Gray, Pac. Railroad Bep. 2. 174. 



Arizona. 



Euphorbia Fendleri, Torr. & Gray, Fac. Railroad Bep. 2. 175. Ne- 

 vada. 



Euphorbia ESUL^FORins, Schauer, Linncea, 20. 729. Arizona. 

 V — ^Euphorbia Montana, Engelm. Nevada. 



Celtis reticulata, Torr., Ann. N. Y. Lye. 2. 217. Nuttall, Sylva,!. 133, 

 t. 39. Arizona. 



Urtica gracilis, Ait., var. occidentalts. (U. dioica, var. Watson, 

 Mng's Bep. 5. 321.) Utah. 



Hu:viULUS LuPULUs, L. Utab. 



Platanus racemosa, Nutt. (?) Arizona. 



Queecus undulata, Torr., Ann. N. Y. Lye. 2. 248, t 4. Nuttall, Sylm, 

 1.8, t. 3. [Q. obtusiloha, var. depressa, Nutt.; Q. Fendleri, Liebm. ; 

 Q. Gatnbellii, Nutt.; Q. alba, var. Gimnisoni, Torr. ; Q. obtmiloba fstel- 

 lata), var. Utahensis and Q. DouyUsii, var. Ifeo-Mexicana, A. DO.) 

 Utab. The common low oak of the Eocky Mountains and Wahsatch, 

 ranging southward to New Mexico and Southern Utah. It is quite 

 variable in its foliage. The typical form has oblong leaves with acute 

 or acutish entire divaricate mostly triangular lobes, the sinuses reacb- 

 ing half-way to the midrib. This is also Q. Fendleri, Liebm. With 

 large leaves and the lobes sometimes coarsely notched, it becomes Q. 

 Gambelln, Nutt., and Q. Donglasii, var. Neo-'Mexicana, A. DO. With 

 the lobes more obtuse, it is Q. alba, var. (?) Gunnisoni, Torr. With the 

 lobes less divaricate and more oblong, freqaeutlv notched at the apex, 



