426 



GEOLOGICAL SURVEY OF CANADA. 



PAGE 



Spartina, Schreb , . . . 182, 389 



cynosuroides, Willd 182 



gracilis, Trin 182, 389 



juncea, Willd 182 



polystachya, Hook 183 



polystachya, Willd 183 



stricta, Roth., var. alterni- 



flora, Gray 183 



var. glabra, Gray 183 



Spergtdaria media 309 



rubra, Presl 310 



nalina ; . . . . 310 



Sphseralcea 313 



acerifolia, Nutt 313 



ri,vularis, Torr 313 



Spirsea 318 



Douglasii, Hook., var. Men- 



zlesii., Presl 318 



salidfoHa 318 



Spiranthes, Rich 7 



cercua, Rich 8 



cernua. Rich 8 



deeipiens, Hook 10 



gracilis, Bigel 8 



latifolia, Torr 7 



plantaginea, Torr 7 



Romanzoviana, Cham 8 



Spirodela, Schleidon 368 



polyrrhiza, Schleid 368 



polyrrhiza, Schleid 75 



Sporobolus, R. Br 197, 391 



arenaeeus, Buckl 197 



asperifolius, Thumber 197, 391 



cryptandrus. Gray 197, 391 



cuspidatus, Scribner. 197 



depanperatus, Scrib 197 



heterolepis, Gray 198 



IndvMs 198 



vaginseflorus, Vasey 198 



Stellaria 309 



aquatica, Scopoli 309 



Stenanthium, A. Gray 52 



occidentale, Gray 52 



Stipa, Linn 190, 389 



avenacea, Linn 190 



Canadensis, Poir 192 



capillaia, Hook 190 



Columbiana, Macoun 191, 390 



comata, Trin. & Rupr 190, 391 



^menoides, Rsem. & Sclmltz. . 193 



juncea, Mich-K 192 



juncea, Nutt 190 



Macounii, Scrib 390 



membrancea, Pursh 193 



ocddentalis, Bol 190 



parmjlora, Nutt 191 



Richardsonii, Link 190, 390 



var. major 191 



Richardsonii 390 



spartea, Trin 191, 390 



PAGE 



spartea. Hook 191 



viridula, Trin 191 



inridvla 390 



Streptopus, Mx 28 



amplexicaulis, Poir 28 



amplexifolius, DC 28 



distortus, Michx 28 



lanuginosus, Pursh 45 



roseus, Michx 29 



Strulhiopteris Oermanica, Willd. • • 281 

 var. Pennsylvanica, Laws.. 281 



Pennsylvanica, Willd 281 



Stylophorum, Nutt 300 



diphyllum, Nutt. 300 



Subularia 306 



aquatica, Linn 306 



Sy mphoricarpus 331 



mollis, ISut 331 



Symplocarpus, Salisb 73 



foetidus, Salisb 73 



kamtschalicm. Bong 73 



Syntherisma prcecux, Wat 179 



Talinum, Adns 312 



spinescens, Torr 312 



Taxus 361 



brevifolia, Nutt , . . 361 



Tetradymia 335 



canescens, DC 335 



Teucrinm 349 



Botrys, Linn 349 



Canadense, Linn 349 



occidentale, Gray 349 



Thalictrum 295 



anemonoides 395 



Comuti 295 



minus, Linn., var. Kemense 



Trelease 295 



polygamum, Muhl 295 



purpurascens 296 



venulosum, Trelease 296 



Thaspium 326 



aureum, Nutt 325 



var. aplerum, Gray 325 



var. trifollatum, C. & R. . 326 



trifolialum, Gray 326 



Thlaspi 306 



perfoliatum, Linn 306 



Tiarella , . . . 322 



laciniata, Hook 322 



Tiedemannia, DC 330 



rigida, C. & R 330 



Tipularia discolor, Beck 2 



Tissa macrotheca, Britt 310 



marina, Britt 309 



' rwfera, Britt 310 



salina, Britt 310 



Tofieldia, Huds 43 



borealis, Wahl 43 



coccinea. Rich 44 



var. major. Hook 44 



