610 



GEOLOGICAL SURVEY OP CANADA. 



PAGE. 



serotina, Poir 125 



sphserocarpa, MX 124 



Virginiana, L 125 



Virginiana, Mill 126 



Pseudotsuga, Carr 472 



Douglasii, Carr 472 



Psoralea, L 108 



argophylla, Pursh 108 



brachia'ta, Dougl 108 



elliptica, Pursh 108 



esculenta, Pursh 108 



lanceolata, Pursh 108 



laxiflora,T. & G 108 



physodes, Dougl 108, 506 



scabra, T. &G 108 



Ptarmica borealis, DC 251 



mlgaris, DC 251 



Ptelea, L 93 



trifoliata, L 93, 503 



Pterospora. Nutt 307 



andromedea, Nutt. ....... 307 



Pulmonaria lanceolata, Pursh ...... 339 



paniculata, Ait 339 



parviflora, Pursh 338 



Sibirica, Pursh 339 



Virginica, L 338 



Pulsatilla alpina, Lawson 12 



patens,i> 12 



Purshia, DC 132 



tridentata, DC 132, 515 



Pycnanthemum, MX 382 



incanum, MX 383 



lanceolatum, Pursh 382 



linifolium, Pursh 574 



monardella, MX 385 



muticum, Pers.,var. pilosum,Gr.574 



Pyrethrum bipmnatum, Willd 253 



inodorum, Smith 253 



Pyrola, L 303 



aphylla. Smith 306, 564 



asarifolia, MX 305 



bracteata, Hook 305 



chlorantha, Swartz 304 



var. occidentalis, Gr 304 



dentata, Hook 306 



elliptica, Nutt 304, 563 



maculata, L 306 



minor, L 303,563 



occidentalis, R. Br 304 



picta, Smith.. 306,563 



rotundifolia, L 305 



var. asarifolia, Hook 305 



var. bracteata, Gr 305,563 



var. incarnata, DC 305 



var. pumila, Hook 305,563 



var. uliginosa, Gr. 305 



rotundifolia, MX 304 



secunda, L 304 



var. p., Hook 304 



var. pumila, Gr 304 



uniflora, L 306 



PAGE. 



Pyrus. See Pirus. 



Pyrus Botryapium, L 148 



ovalis, Pursh 149 



sanguinea, Pursh 148, 149 



Quercus, L 440 



alba, L 440 



var. Gunnisonii, Torr 441 



var. microcarpa, DC 440 



var. pinnatifida, MX. 440 



var. rep Linda, Pursh 440 



alba, Hook. 441 



ambigua, MX 442 



bicolor, Willd 441 



G'Stanea, Muhl 442 



Chinquapin, MX 442 



coccinea, Wang 443 



var. ambigua, Gr 442 



var. tinctoria, Gr 442 



discolor, Ait 443 



Douglosii, var. 6 (?) Nesei, DC.. 440 



Garry ana, Doxigl 440 



macrocarpa, MX 441 



var. olivstformis, Gr 441 



montana, Willd 442 



obtusiloba, MX 440 



obtusUoba, MX 441 



olivseformis (Holmes Cat.) 441 



palustris, Du Roi 443 



priuoides, Willd 442 



Prinus, L 442 



var. acuminata, MX 442 



var. discolor, MX 441 



var. humilis, Marshall .... 442 



var. monticola, MX 442 



var. pumila, MX 442 



var. tomentosa, MX 441 



rubra, L 442 



stellata,Wang 440 



tinctoria, Bart 443 



var. angulosa, MX 443 



RANUNCULACE^E (i) 11 



Ranunculus, L 15 



abortivus. L 18 



var. micranthus, Gr . . . 18, 480 



acris, L 20 



acris, L 22 



var. )8, T. & G 22 



affinis, R. Br 18 



var. cardiophyllus, Gr.... 18 

 var. leiocarpus, Trautv..l8, 480 



alismsefolius, Geyer 16, 480 



ambigens, Wat 480 



aquatilie, L. 



var. brachypus, Hook.& Arn 16 



var. C8e.pitosus, DC 16 



var. capillaceus, DC 16 



var. Lobbii, Wat 15 



var. stagnatilis, DC 16 



var. tricophyilus, Chaix.... 16 



