INDEX. 



421 



PAGE 



Pleuropogon, E. Br 220 



Sabinii, R. Br, 220 



Poa, Linn 222, 395 



abbreviata, R. Br 222 



airoides, Nutt 231 



alpina, Linn 222 



alsodes, Gray 222 



andina, Nutt 223 



var. purpurea, Vasey 223 



andina, Nutt 224 



var. purpurea, Vasey 395 



angustata, E. Br 229 



annua, Linn 223 



aquatica, Pursh 230 



var. /3. Americana, Torr.. 230 



arctica, R. Br 224 



Bolanderi, Vasey 223 



boreale, Hook 221 



ceesia, Smith 223 



var. strictior. Gray 223 



Californica, Vasey 224 



CanadenHs, Beau v 230 



cenisia. All 224 



compressa, Linn 224 



crocata, Michx 226 



cuspid ata, Vasey & Scrib 224 



debilis, Torr 224 



var. acutiflora, Vasey 225 



Eatoni, Wat 225, 395 



elongata, Torr 231 



Eragrostis, Linn 219 



fasciculata, Hook 231 



feslucseformia, Host 232 



flavicans, Ledeb . . 225 



flexuosa, Wahl 224 



fulva,Trin 229 



glauca, Vahl 222 



glumaris, Trin 225 



Howellii, V. & S 225 



laxa, Hsenk 225, 395 



leptocoma, Trin 225 



Macounii, Vasey 225 



Michauxii, ICunth 221 



nemoralis, Linn 225 



nemoralin. Hook 223 



nemoralis, Torr 222 



nervata, Willd 232 



Nevadensis, Vasey 226, 395 



Nutkaensis, Presl 226 



obtusa, Muhl 233 



palustris, Muhl 226 



parviflora, Pursh 232 



pratensis, Linn 226 



purpurascens, Vasey 226. 395 



replans, Michx 219 



serotina, Ehrh 226 



var. erecla 227 



var. Hallii 227 



stenantha, Trin 227, 395 



striata, Michx 232 



PAGE 



subaristata, Scrib 227, 395 



tenuiflora, Nutt 227 



var. Oregona, Vasey 227 



trivialis, Linn 227 



Vaaeyana, ya,T. angustifolia . . . 395 



Pogonia, Juss 11 



ophioglossoides, Ker 11 



pendula, Liudl 11 



verticillata, Nutt 12 



Polanisia 306 



graveolens, Raf 306 



trachysperma, Torr. & Gray. . 306 



PoUinia scoparia, Spreng 185 



Polygonatum, Adans 28 



angustifoHum, Pursh 28 



biflorum,EIl 28 



canaliculatum, Pursh 28 



giganteum, Dietr 28 



hirtum, Pursh 28 



latifolium, Pursh 28 



var. commutatum. Baker. . 28 



multiflorum, Desf 28 



multiflorum. Hook 28 



mvltiflorum, Pursh 28 



piAeacens, Pursh 28 



Polygonum 352 



coarctatum, Dougl 352 



Douglasii, Greene 352 



emersum, Muhl. (?) 353 



incarnatum 353 



intermedium, Nutt 352 



lapathifolium, Linn 353 



var. incanum, Koch 353 



var. incarnatum, Wat... 353 



minimum, Wat 352 



Muhlenbergii, Wat 353 



Muhlen bergii, Macoun 353 



nodosum, Pers 353 



Tartaricum, Linn 354 



Polypodium.Linn 257 



alpestre, Hoppe 271 



hvlbiferum, Linn 280 



calcareum, Pursh 270 



carnosum, Kellogg 258 



connectile, Mx 267 



Dryopteris, Linn 270 



var. calcareum, Gr 270 



falcatum, Kellogg 258 



glycyrrhiza, Eaton 258 



hexagonopterum, Michx 270 



Phegopteris, Linn 269 



var. mojus. Hook 270 



Roberlianum, Hoff 270 



Scouleri, Hook. & Grev 258 



Virginianum, Linn 257 



vulgare, Linn 257 



var. Americanum, Hook . . 257 



Polypogon, Desf 201 



alopecuroides, Buckl 198 



jugax, Boland 201 



