394 
Page. 
Oxybaphus aise Sweet, var. latifolius, Gray. 225 
—— ineus, Sweet, var. oblongifolius, 
226 
Oxyria dav Campa : 236 
Oxytropis 85 
eongttaie L., var. viscida, Watson....... 97 
defiexa, 98 
secant oe i clletmaipo es acti Gaelic ie 42, 97 
MAMUNOO TS INCU. an ccs ccsnnccncsasgcesceet 98 
— ‘Donal = SS apie eae Loe keaeats 97 
97 
Pachystina © Cat 6 81 
nites, i 81 
i Bo our gl 60 
hese athe sea ee dees sens 169 
RAMU EUMNEG oeeo ants ecg cases Ue ss ee 169 
comemarege a var. serrata, Gray (P]. XVI) ..... 867 
Pani i, L 295 
sero ates al Torr 295 
BRU OOIMEONG, She Uh, We oss 5 cone beicac cas rule 295 
maximum, Jacq 295 
obtusum, H. B. 295 
Pannaria brunnea, (Sw.) Mass ....... .........0---- 851 
Hypnorum, (Hofim.) Koerb 351 
61, 355 
PAPILIONACE 84 
Parki 87 
microphylla, Torr 105 
Parmelia conspersa, (Ehrh.) Ach., var. molliuscula, 
Nag ckerm 851 
ia fimbriata, Koenig 117 
parviflora, DC 7 
Paronychia pulvinata, Gray 238 
2 
Parryella 85, 86 
filifolia, T. & G. (Pl Ip 98 
Parthenium i BE 158 
Paspalum distichum, L 378 
Pectis angustifolia, Torr 46,171 
Jastigiata, Gray 171 
ray 170 
imberbis, Gray 172 
longipes, Gra; 171 
papposa, Gray 46,171 
prostrata, Cav 172 
Walssemna, Hock: Avi oo a 170 
tenella, DC 171 
Pedicularis crenulati, Benth 216 
se ee gp Neal aya 7,216 
Parryi, Gray 217 
procera, Gray 216 
MEE) eae wheel es lew eee =anseye 217 
Sudetica, Willd 216 
Pellea Alabamensts, Baker... ....--00.62000. 00-0005 312 
dromedzfolia, Fée 320 
mrdpurpures, Tink’ oo. 6005. 5, 319 
auriculata 819 
Breweri, D. C. Eaton 319 
gesii, Hook : 323 
cordata, J. Smith 924 
— ik 323 
fil 
"Mett. Oe oe ee 31 
gracilis, H 319 
intermedia, Mett 
Page. 
Pella microphylla, Mett. & Kuhn 821 
mucronata, Baker 322 
mucronata, Fée 319 
myrtillifolia, Mett. & Kuhn 320 
ornithopus, Hook 322 
pulchella, Fée 320 
rotundifolia 324 
ternifolia, Li 321 
Weddelliana, Fée 322 
ightiana, Hook 321 
Peltigera aphthosa, (L.) Hoffm 351 
horizontalis, (L.) Hoffm 351 
venosa, (L.) m 351 
Pentstemon acuminatus, Dougl 210 
Wbidus, Nutt 211 
mbiguus, Torr 211 
barbatus, Nutt., var. Torreyi, Gray..... 210 
barat sat , var. trichander, ay : 210 
cer 210 
centro, IW SGROR ve cke aay tb 211 
confertus, Dougl., var. caeruleo-purpu- 
us, te 212, 370 
cordifolius, Benth 370 
cristatus, Nut 21 
Gpnstin Deu. 55-0 coe 212 
Eatoni, Gray 21 
Fremontii, T. & G 210 
gia aber, Purs 
glaucus, Grah., var. stenopetalus, Gray- 212 
Gray 2 
humilis, Nutt 212 
J: amesii, Benth 2255522 hag! pilannp hee EP 212 
letus, Gray coe eee 212 
linarioides, Gray 211 
Menziesii, Hook 370 
Rezli, Regel 371 
Rothrockii, G 370 
secundifiorus, Benth ............5....4-- 210 
vir; Gra 211 
rightii, Hook 211 
Perezia nana, Gray 180 
Wrightii, Gray 80 
Petalostemon 86 
candidus, Mic 99 
uifolius, pute (Pl. ID 99 
Petalonyx nitidus, Watson (P1.IV) ............5.... 125 
Th beri, ray 125 
nth. & Hook * 134 
Hoo 
Phacelia circinata, Jacq. f 200, 369 
erenulata, Torr : 2 
giondnlown Wath oe ao cor a to 
glandulosa, Nutt., var. Web lesion, 
PAY oles 200 
grandiflora, Gray 369 
integrifolia, 201 
Neo-Mexicana, Thurb 200 
PRE SUPE a 201 
Popei, T. & 200 
anata, DOOR ooo oe coe 369 
i Gray 201 
tanacetifolia; Benth... 2... ........0c05 ole 201 
Ranta; Préal & P66. so eee 337 
scan diversifol dl 204 
SS se ee ee 86 
