Potentilla 
macropetala, 313 
macrorhiza, 321 
maculata, 325, 334 
maculata firma, 326 
maculata hirta, 325 
madrensis, 323 
michoacana, 305 
millefolia, 343 
wmillegrana, 305, 307 
millegrana lateriflora, 305 
minima, 335 
minima Robbinsiana, 335 
minutifolia, 338 
missourioa, 350 
modesta, 331 
monidensis, 345 
monspeliensis, 307 
Potentilla 
oaxaceana, 314 
oblanceolata, 329 
obliqua, 368 
obovatifolia, 321 
obscura, 309 
opaca, 325 
oregana, 374 
ovalis, $52, 364 
ovina, 345 
pacifica, 353, 354 
pallida, 310 
palustris, 355 
palustris villosa, 355 
paradoxa, 304 
Parishii, 313 
paucijuga, 348 
Pecten, $15 
monspeliensis labradorica, 306pectinata, 349, 351 
monspeliensis norvegica, 307 
Morisoni, 307 
multifida, 348 
mul tijuga, 346 
multisecta, 327 
nana, 334 
Nelsoniana, 344 
nemoralis, 302 
nervata, 311 
Newberryi, 308 
Newberryi arenicola, 
Nicolletii, 304, 305 
nipharge, 332 
nivalis, 352 
nivea, 3352, 335, 3354 
nivea altaica, 3352 
nivea arctica, 354 
nivea arenosa, 3352 
nivea concolor, 3344 
nivea dissecta, 330, 
nivea hirsuta, 3353 
nivea macrophylla, 3352 
nivea pallidor, 332 
nivea pentaphylla, 330 
nivea pinnatifida, 352 
nivea prostrata, 361 
nivea pulchella, 347 
nivea quinquefolia, 350 
nivea subquineta, 332 
nivea subviridis, 332 
nivea uniflora, 332 
nivea Vahliana, 335, 552 
norvegica, 307 
norvegica hirsuta, 307 
Wuttallii, 311, 312 
Muttallii glabrata, 315 
308 
532 
pectinisecta, 316 
Pedersenii, 332 
pennsylvenica, 
pennsylvanica 
pennsylvanica 
pennsylvanica 
pennsylvanica 
pennsylvanica glabrata, 350 
pennsylvanica Hippiana, 340 
pennsylvanica missourica, 350 
pennsylvanica pulcherrima, 341 
pennsylvanica strigosa, 351 
pentandra, 307 
perdissecta, 327 
permollis, 3515 
pilosa, 309 
pinnatisecta, 344, 345 
plettensis, 343 
plattensis leucophylla, 342 
plattensis pedicellata, 343 
platyloba, 349 
Fringlei, 331 
procumbens, 365, 302 
349, 350 
arachnoidea, 350 
arguta, 548, 368 
communis, 350 
conferta, 350 
propingua, 341 
prostrata, 331 
proxima, 339. 
pseudorupes tris, 370 
pseudosericea, 348 
pulchella, 329, 347 
pulehclla elatior, 347 
pulcherrima, 319, 341, 349 
pulcherrima, 349 
pumila, 303 
quinquefolia, 330 
ramulosa, 528 
ranunculoides, 321 
