Potentilla 
Ranunculus, 326 
recta, 509, 310, 311 
Trecte obscura, 309 
recta pallida, 310 
rectiformis, 312 
reflexa, 374, 376 
reptans, 302 
retusa, 365 
rhomboidea, 376 
Richardii, 345 
rigida, 311 
rivelis, 305 
rivealis pentandra, 307 
rivalis millegrana, 305 
Robbinsiana, 335 
Tosulata, 336 
rubens, 325 
rubra, 323 
rubricaulis, 337, 351 
rubripes, 337 
rupinecola, 340 
Rydbergiana, 321 
salisburgensis, 325 
sanguinea, 324 
sarmentosa, 303 
saximontana, 338 
saxose, 3355 
scopulorum, 372 
sericea, 347 
sericea glabrata, 350 
Sierrae-Blancae, 325 
simplex, 302 
Sommerfel tii, 347 
staminea, 321 
strigosa, 351 
subarctica, 347 
Bubcoriacea, 320 
subjuga, 320 
subquinata, 330, 3352 
subvillosa, 316 
subviscosa, 328 
sulphurea, 3510 
supina, 304 
supina Nicolletii, 304 
tenerrima, 337 
tenuifolia, 366 
Thurberi, 323 
Tormentilla nemoralis, 
Tormentilla procumbens, 
Townsendii, $11 
tridentata, 365 
uniflora, 532 
Vahliana, 333 
valida, 371 
verna, 325, 534 
versicolor, 344 
Po tentilla 
vesoa, 359 
villosa, 333 
Villora aurea, 333 
villosa chrysocoma, 333 
villosa uniflora, 332 
virgulata, 349 
viridescens, 318 
viridior, 342 
viscidula, 327 
Vreelandii, 325 
Wheeleri, 327 
Wheeleri viscidula, 327 
Wrangelliana, 374 
wyomingensis, 345 
Po tentillopsis 
Engelmanniana, 307 
Po teridium 
annuum, 388 
occidentale, 388 
Po terium 
annuum, 388 
canadense, 386 
myriopnyllum, 388 
officinale, 387 
sitchense, 386 
Sancuisorba 
annuus, 488 
canadensis, 386 
canadensis latifolia, 386 
latifolia, 386 
media, 387 
Menziesii, 3387 
microcephala, 387 
myriophylla, 388 
occidentalis, 388 
officinalis, 387 
palustris, 386 
Bitchensis, 386 
Sibbaldia 
erecta, 577 
erecta parviflora, 377 
procumbens, 3565 
Sibbaldiopsis 
tridentata, 365 
Tormentilla 
humifusa, 329 
reptans, 302 
302 Tridophyllum 
bienne, S05 
monspeliense, 307 
liicolletii, 304 
norvegicum, 307 
paradoxum, 304 
pentanurum, $07 
rivale, S06 
Zygalehemilla 
pinnata, 385 
