INDEX. 



415 



PAGE 



tenuis, Schultes 97 



tenuis 373 



Helianthella, Torr. & Gray 334 



Douglasii, Torr. & Gray 334 



Helonias dioica, Pursh 43 



paniculata, Nutt 53 



tenax, Pursh 43 



Hemerocallis, Linn 33 



fulva, Linn 33 



Hegperoscordon LeiiAdi, Hook 34 



Heteranthera, Euiz 54 



graminea, Vahl 54 



Heterocodon 338 



rariflorum, Nutt 338 



Heteroslyhis gramineus, Hook 81 



Hieracium 336 



aurantiacuDQ, Linn 336 



cynoglossoides, Arvet .S37 



pauiculatum, Linn 337 



Pilosella, Linn., var. Peleter- 



ianum,Mer 336 



Hierochloa, Gmel 187 



alpina, Rcem. & Scliultz 187 



borealis, Rcem. & Soliultz 187 



pauciflora, K. Br 188 



Hipopitys 340 



fimbriata, Gray 340 



Holcus, Linn 211 



alpinus, Wahl 187 



fragrans, Pursh 187 



lanatus, Linn 211 



odoratua, Linn 187 



Hordeum, Linn 243 



jubatum, Linn 243 



maritimum, With 244 



murinum, Linn 244. 



nodosum, Linn 244 



pratense, Huds 244 



pusillum, Nutt 244 



Hosaokia 316 



bicolor, Dougl 316 



Purshiana, Bentli 316 



subpinnata, Torr. & Gray .... 317 



Hydeocharidace^ (cti.) 1 



Hydrocotyle 324 



umbellata, Linn 324 



Hydrophyllum 343 



capitatum, Dougl 343 



oocidentale, Grav, var. Fend- 



leri, Gray . . ." 343 



Virginicum, Linn 343 



Hydroporwm verticillatwm, Nees . . . 108 



Bydropyrwm escidentum, Link 183 



Hypericum : 312 



anagalloides,Chain.& Schlecht 313 



anagalloides, Macoun 312 



Ascyron, Linn 312 



Canadense, Linn, var. mini- 

 mum, Chois 312 



corymbosum, Muhl 312 



PAGE 



formosum, HBK,var. Scouleri, 



Coulter 313 



maculatum, Walter 312 



pyramidaium, Ait 312 



Scouleri, Hook 313 



Hyssopus 350 



■ officinalis, Linn 350 



Hypoxys, Linn 26 



Carolinianum 26 



erecta, Linn 26 



Ilex 315 



verticillata, Gray, var. tenui- 



folius, Eaton & Wright.. 315 



Ilysanthes 348 



gratioloiden, Benth 348 



riparia, Eaf 348 



lonidum coneolor, Benth. & 



Hook 307 



Ieidacbje (cv.) . ..'. 23 



Iris, Linn 23, 364 



caurina, Hook 24 



Hookeri, Penny 24 



lacustris, Nutt 24 



prismatica, Pursh 364 



prismaiica, Pursh 24 



Sibirica, Linn 24 



tenax, Dougl 24 



trideniala. Hook 24 



versicolor, Linn .' 23 



"Virginica, Linn 24 



Virginica, Pursh 23 



Virginica, Linn 364 



Isoetes, Linn '. 292 



Bolanderi, Engelm 293 



echinospora, Durieu, var. 



Braunii, Engelm 292 



lacustris, Linn 292 



maritima. Underwood 293 



Nuttallii, A. Braun 293 



riparia, Engelm, var. Cana- 

 densis, Engelm 293 



Tuckermani, A. Braun 293 



Isolepis leptocaulis, Torr 176 



riparia, E. Br / 1 76 



Juniperus 261 



communis, Linn, var alpina, 



Linn 361 



JuKOACE.s; (ox.) 55 



Juncus, Linn 55, 365 



acuminatus, Mx., var. a. legi- 



timus,Engl 62 



acuminatus, Mx 62 



acuminatus, Torr 63 



acuiiflorus, Hook 61, 62 



var. p. minor, Hook 63 



alpinus, Villars, var- insiguis. 



Fries... 62 



articulatus, Linn 61 



var. pelocarpus. Gray 62 



arcticus, Willd 57 



