INDEX 601 
Page Page 
Penstemon fremontii_......-..-.-.---------- 339 | Penstemon pseudoprocerus.......----------- 368 
parryi_......-.---------------------- 364 pubescens gracilis. -........-------------- 372 
subglaber .....---..-.---------------- 352 pumilus thompsoniae_.....------------- 341, 374 
fruticosus.........---------------------- 377 radicosus_...-..-------------------------- $71 
crassifolius._.....-------------------- 378 retrorsuS__........----------------------- 373 
garrettii.........---------------------- 353, 381 riparius......---------------------------- 348 
glaber._._.....-------------------- 342, 347, 348 rydbergii_.......--.------------------- 367, 368 
alpinus__......---------------------- 348 saliens..._..----------------------------- 343 
cyananthus.......----------------- 352, 353 saxoSorum.._....----..---.-------------- 349 
fremontii_....--.-------------------- 339 scariosus__..-....---------------------- 353, 381 
pubicaulis...........---------------- 348 secundiflorus_.........---------------- 345, 357 
utahensig._......-------------- 337, 347, 350 lavendulus...-..--......-.---------- 358 
wardii...........-------------------- 347 sepalulus......-------------------------- 379 
glabrescens........---------------------- 375 similis__.._.._.....---------------------- 340 
glaucus stenosepalus_-.--.---------------- 376 stenosepalus___.....--------------------- 377 
gordoni......------.---.----------------- 348 strictiformis........--------------------- 355 
gracilis..........---------------------- 361, 372 strictus......-----......--------------- 350, 355 
grandiflorus.._......-------------------- 3357 angustus_-....-..------------------- 356 
griffinii...........--.-------------------- 372 subglaber_...........-------------------- 350 
hallii_._.-_...-..-.-------------------- 344, 351 suffrutescens--.------------------------- 374 
harbourii_.._._.._.---------------------- 373 teucrioides.._.....--------------------- 374, 375 
haydeni...._......----------------------- 361 thompsoniae_.__-....-------------------- 374 
heterophyllus latifolius_._.....------------ 378 tidestromi.........-------------------- 329, 379 
humilis_...._...-.----------------------- 371 torreyi.......---.------------------------ 336 
brevifolius.........----------------- 370, 371 trichander_.....-.---------------- weneeee 337 
jamesii__..._....-.--.-.----------- 340, 341, 344 uintahensis._......---------------------- 350 
jonesii.......---.------------------------ 338 unilateralis.._......--.------------------- 345 
lacerellus__...._.------------------------ 367 utahensis_.......---------------------- 337, 350 
laevis........----.------------- 339, 347, 360, 380 versicolor......-------------------------- 358 
laricifolius.__......---------------------- 363 virens..--------------------------------- 369 
latifolius..........----------------------- 378 wardii__....--------------------------- 347, 380 
latiusculus__...........---.-------------- 367 watsoni_.__...-.------------------------- 364 
leiophyllus_-_.......-.-.---.------------ 346 whippleanus....-..---------------------- 376 
lentus........-.------------------------- 359 xylus....-.-.-------------------------- 363, 374 
leonardi__.___._.....-------------------- 379 | Peonfa_-....--.----------------------------- 176 
leptanthus.._--.....-------------------- 339 | Perymeniopsis_......------------------------ 424 
linarioides sileri_..._.....-...----------- 363 perfoliata. ..-...------------------------- 432 
magnus ....-----------------------+------ 346 | Perymenium--.-__-------------------------- 411, 421 
mensarum._-._...---------------------- 330,380 | Phacelanthus (proposed subgenus) . -..------ 45 
menziesii crassifolius_...---.------------- 378 | Pharmacosyce (subgenus of Ficus)......-- 2, 3, 8, 12 
micranthusg__.....----------------------- 365 | Pharmacosycea_.....------------------------- 2 
moffatti_.._....----------------------- 342, 344 angustifolia. ......----------------------- 9, 10 
montanus.......------------------------ 377 glaucescens_.....------------------------- 7 
nitidus_._._.......---------------------- 362 hernandezii____......-------------------- 7 
major_.....-------------------------- 360 mexicana. ...-...------------------------ 10 
obtusifolius_...........------------------ 370 pseudoradula__...------------------------ 7 
oliganthus_..........-------------------- 372 radula__.._...--------------------------- ll 
ophianthus.._......--------------------- 343 rigida_._...-------------------------- a 7 
oreophilus....-...----------------------- 349 | Phaseolus caracalla......-------------------- 570 
osterhoutii_.......---------------------- 358 | Phialanthus macrostemon--_--...------------- 209 
owenii___..__..-------------------------- 368 rigidus_._......------------------------- 209 
pachyphyllus--.---------------------- 337, 360 | Philenoptera_....---.-..--------------------- 41 
palmeri-__.--.---------------------------- 344 kotschyana........----------------------- 41 
parryi imberbis.....---------------------- 337 schimperi_......------------------------- 41 
parviflorus. .--..------------------------ 340 | Philenopteri (section) ---....----------- 41, 44, 47, 48 
parvus.._-....-------------------------- 345 | Phrygilanthus sonorae_-..--.----------------- 212 
paysonii____......_.------------------- 318, 342 | Phyllocarpus septentrionalis........--------- 216 
petiolatus_....------------------------ 321,344 | Physiphora laevigata__.....--.---------------- 501 
phlogifolius.......----------------------- 365 | Phytogeographic regions of Rocky Mountains 315 
platyphyllus__._._-----.---------------- 378 | Pichoco.........------------ gona n nee eeeeee-- 176 
procerus_......------------------------ 3635, 367 | Picramnia antidesma_-...-.----------------- 218 
aberrans.........------------------ 366, 367 pistaciaefolia_-__..--..------------------- 218 
micranthus_.....-------------------- 365 | Pine....__....------------------------------- 315 
pseudoprocerus___...-.--------------- 369 | Pinus ponderosa..._.------------------------ 153 
pulvereus........-------------------- 366 scopulorum...-.------------------------- 315 
procumbens......------------------------ 374 | Pinyon_........----------------------------- 315 
pseudohumilis._.......------------- 342, 368, 369 ' Piparea dentata___....--.-------------------- 518 
