9 



RiBES AUBEUM, Pursb. Northern IN'evatla. 



Lythrum alatum, L,, var. lanceolatum, Torr. & Gray. Nevada. 



Zauschxeria Californica, Presl. Arizoua. 



Bpilobiu:\i angustifoliu^i, L. Utah. 



Epilobium TETRAfiONU^f, L. Nevada and Utah. 



EriLOBIUM PANICULATUM, Nutt. Utah. 



GAY0PHYTU3I RAMosissoiUM, Torr. & Gray. Nevada. 



Gayophytum RACEiJ(0fiU3i, Torr. & Gray. Utah. 



CExoTiiERA BIENNIS, L., Utah; and var. grandiflora, Torr. & Gray. 



Nevada. 



OENOTHERA HETERANTHA, Nutt. Utah. 



(Enotherascapoidea, Nutt., van puRPURASCENS, WatsoUyFrocAmer. 



Acad. 8. 595. Neva<ia. 



(Enotiiera albicaulis, Nutt. Utah. 



(Enotiiera Gregg II, Gray, PL FemlL 46. Arizoua. 



CEnothera tanacetifolia, Torr. & Gray. Nevada. 



CEnothera BooTHii, Dou^i'h Nevada. 



OENOTHERA ALYSSOiDES, Uook. & Am. Utah. 



Gaitra parvifeora, Dough Utah. 



Gaura suffulta, Engelm., PL Lindh. 190. Arizona. 



Gaura coccinea, Nutt. Nevada and Arizona. 



Mentzelta alricaitlis, Dough Nevada. 



Mentzelia L^YiCAULis, Torr. & Gray. Utah. 



Petalonyx Thurberi, Gray. Southern Nevada. 



Petalonyx nitidus, Watson, Amer. Katuralist^ 7. 300. New species. 

 Leaves ovate, ^-1 inch long, acute, coarsely-toothed, shortly-petioled, 

 vitreous and shining, not greatly reduced on the branches; flowers 

 in contracted cynjose panicles j otherwise like P. ThiirberL — Southern 

 Nevada. 



CucuRRiTA digitata, Gray, PL WrigJiL 2. 00. Arizona. -,^____--*r-.-^-^-^ 



Ma:millaria Arizonica, Engelm., ined. Arizoua. ^ ""^ "" "^ 



Mamillaria YivirARA, Haw., var. Arizona and Utah. 



EcHiNOCACTUS POLYCEPHALUS, Engelm. & Big. Arizona. 



EcHiNOOAOTUS WiSLiZENi, Engelm., Pac\ Railroad Hep. 4. 30, t. 3. 

 Arizoua. 



Cereus YiRiDiFLORrs, Enfi:elm. Nevada. 



Cereus EJngelmannt, Parry. Arizona. 

 Opuntia rasilaris, Engelm. & Big. Arizona. 



Opuntia Bigelovix, Kngehn,y Pac, Railroad Rep. 4. 50, f. 19. Arizona. 



Opuntia arborescens, Engelm. Arizona. 



Opu^^tia tesselata, Engehn., Pac, Railroad Rep. 4. 52, f. 21. Arizona. 



CicuTA 3IA0ULATA, L. Nevada and Utah. 



CARU3I Gairdneri, Bcnth. & Hook. Nevada, 



SIU3I A^'GUSTIFOEIUM, L. Nevada and Utah. 



Angelica Wiieeleri, ^Yatson, Amer. XaturaUst^ 7. 301. New species. 

 Tall and stout, roughly pnberulent; leaves biternate; leaflets ovate- 

 oblong, 2-3 inches long, acute, incisely serrate, the teeth broad and 

 mucrouate, middle leaflet petioluhite; umbels naked; rays numerous, 

 unequal, becoming 2-5 inches long ; pedicels and ovary hispid ; i>etals 

 apparently white; fruit broad elliptical, 3 lines long, subpubescent, 

 the doT^sal wings thick, narrower than the lateral ones. — Utah. 



Ferula multifida, Gray (?). Foliage only. Utah. 



PEucEDA^x M SATIVUM, Bentb, & Hook. Utah. 



Garrya feavescexs, Watson, Amer, Naturalist^ 7. 301. {Garrya — (?), 

 Watson, Kin(fs Rep. 5. 421.) Silky pubescent with straight ap- 

 pressed hairs j leaves yellowish, elliptic-oblong, acute at each end, 



