394 



Oxybaphus nyctagineus, Sweet, var. latifolius, G-ray. 

 nyctagineus, Sweet, var. oblongifolius, 



Gray 



Oxyria digyna, Campd 



Oxytropia 



campestris, L.,-var. viscida, "Watson. 



dcflexa, DC 



Lamberti, Pursli 



multiceps, Mutt 



splendens, Dougl 



viscida, Nutt 



Pachystima Canbyi, Gray 



myrsinites, Raf 



Pseonia Brownii, Dougl 



Palafoxia Hookeriana, T. & G 



linearis, Lag 



Palmerella debilis, var. serrata, Gray (PI. XVT) 



Panicum Crus-galli, L 



lacbnanthum, Torr 



leucopbseum, H. B. K. 



maximum, Jacq .\ 



obtusum, H. B.K 



Pannaria brunnea, (Sw.) Mass 



Hypnorum, (Hoffm.) Koerb 



PAPAVERACE.2E 



PAPILIONACE^ 



Parkinsorria 



micropbylla, Torr 



Parmelia conspersa, (Ebrb.) Acb., var. molliuscula, 



Tuckerm 



Pamassia fimbriata, Koenig 



parviflora, DC 



Paronycbia pulvinata, Gray 



PAROMTCHLEiE 



Paxryella 



filifolia, T. &G-. (PI. LI) 



Parfchenium incanum, H. B. K 



Paspalum disticbum, L 



Pectis angustifolia, Torr 



fastigiata, Gray 



nlipes, Gray 



imberbis, Gray 



longipes, Gray 



papposa, Gray 



prostrata, Cav 



Taliscana, Hoot. & Am 



tenella,DC 



Pedicularis crenulata, Bentb 



Grcenlandica, Retz 



Parryi, Gray 



procora, Gray 



racemosa, Dougl 



Sudetica, "Willd 



Pellcea Alabamensis, Baker - 



andromedsefolia, Pee 



atropurpurea, Link 



auriculata 



Breweri, D. C. Eaton 



Bridgesii, Hook 



cordata, J. Smith 



dcnsa, Hook 



nexuosa, Link 



glabella, Mett. & Kuhn 



gracilis, Hook 



intermedia, Mett 



longimucronata, Hook 



INDEX. 



Page. 

 225 



226 

 236 

 85 

 07 

 98 

 42,07 

 98 

 97 

 07 

 81 

 81 

 60 

 160 

 160 

 367 

 295 

 205 

 205 

 205 

 295 

 S51 

 351 

 61, 355 

 84 

 87 

 105 



351 

 117 

 7 

 238 

 238 



85,86 



98 



158 



378 



46, 171 

 171 

 170 

 172 

 171 



46, 171 

 .172 

 170 

 171 

 216 

 7,216 

 217 

 216 

 217 

 210 

 312 

 320 

 319 

 319 

 319 

 323 

 324 

 323 

 324 

 319 

 319 

 324 

 322 



Page. 



Pellcea microphylla, Mett.&Kuhn 32 * 



mucronata, Baker 322 



mucrtmata, FGe 319 



myrtilllfolia, Mett. fcHuhn 320 



ornithopus, Hook 322 



pulchella, Fee 320 



rotundifolia 324 



temifolia, Link 321 



~Wedddliana, F6e 332 



Wrightiana, Hook 321 



Peltigera apbtbosa, (L.) Hoffin 351 



horizontalis, (L.) Hofim 351 



venosa, (L.) Hoffm 351 



Pentstemon actuninatus, Dougl 21 * 



albidus, Uutt 211 



ambiguus, Torr 211 



barbatns, Nutt., var. Torreyi, Gray 210 



barbatus, Nutt., var. trichander, Gray. . 210 



cEBruleus, Nutt -- 2 ^o 



centranthifolius, "Watson 2 U 



confertus, Dougl., var. cseruleo-purpu- 



reus, Gray 212,370 



cordifolius, Benth 3 ?0 



cristatus, Nutt 212 



doustus, Dougl 2 * 2 



Eatoni, Gray 2 U 



Premontii, T. &G 2 10 



glaber, Pursb 210 



glaucus, Grab., var. stenopetalus, Gray. 212 



Hallli, Gray 212 



humilis, Nutt 212 



Jamesii, Bentb 2 12 



lastus, Gray 2 1 2 



linarioidea, Gray 211 



Menziesii, Hook 3 70 



Brezli, Kegel 371 



Eotbrockii, Gray 3 70 



secundiflorus, Benth 210 



virgatus, Gray 2 11 



Wrigbtii, Hook 211 



Perezianana, Gray 180 



"Wrightii, Gray 180 



Petalostemon 86 



candidus, Micbx 99 



tenuifolius, Gray (PI. II) 99 



Petalonyx nitidus, "Watson (PI. IT) 125 



Tburberi, Gray 125 



Poucedanum sativum, Bentb. & Hook , 134 



Phaca aboriginum, Hook - 94 



Pbacelia circinata, Jacq. f 200,369 



crenulata, Torr 200 



glandulosa, Ntitt 200 



glandulosa, Nutt., var. Meo-Mexicana, 



Gray 200 



grandifiora, Gray 363 



intcgrifolia, Torr 201 



Nco-Mexicana, Tburb 20C 



Palmeri, Torr 201 



Popei, T. &G 20C 



ramosissima, Dougl 36£ 



sericea, Gray 20] 



tanacetifolia, Bentli 20] 



Phanerophebia, Prcsl & Feo 33' 



Pbarbitis diversifolia, Lindl 20' 



Pbaseolus 81 



retusus, Bentb 10' 



