INDEX. 



415 



PAGE 



tennis, Schultes 97 



tennis 373 



Helianthella, Torr. & Gray 331 



Donglasii, Torr. & Gray .">:>! 



Helonias dioica, Pursh 43 



paniculate, Nutt 53 



tnwx, Pursh 43 



Hemerocallis, Linn 33 



fnlva, Linn 33 



Hesperoscordon Lewisii, Hook 34 



Heterantbera, Ruiz 54 



graminea, Vahl 54 



Heterocodon 338 



rariflorum, Nutt 338 



Heterostyltts gramineus, Hook 81 



Hieracium 336 



aurantiacum, Linn 336 



cynogloesoides, Arvet 337 



panicnlatum, Linn 337 



Filosella, Linn., var. Peleter- 



ianum, Mer 336 



Hierochloa, Gmel 187 



alpina, Roem. & Schnltz 187 



borealis, Rocm- & Scbultz 187 



pauciflora, R. Br 188 



Hipopitys 340 



fimbriata, Gray 340 



Holcus, Linn . 211 



alpinus, Wahl 187 



fragrans, Pursh 187 



lanatus, Linn 211 



odomlus, Linn 187 



Hordeum, Linn 243 



jubatum, Linn 243 



maritimum, With 244 



murinum, Linn 244 



nodosum, Linn 244 



pratense, Huds 244 



pusillum, Nutt . . v 244 



Hosackia 316 



bicolor, Dougl 316 



Purshiana, Benth 316 



subpinnata, Torr. & Gray 317 



HYDROCHARIDACE.E (en.) 1 



Hydrocotyle 324 



umbellata, Linn 324 



Hydrophyllum 343 



capitatum, Dougl 343 



occidentale, Gray, var. Fend- 



leri, Gray 343 



Virginicum, Linn 343 



Hydroporum verticillalum, Nees. . . 108 



Hydropyrum esculentum, Link 183 



Hypericum 312 



anagalloides,Cham.& 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 



maculatnm, Walter 312 



pyramidatum, Ait 312 



Scoulcri, Hook 313 



Hyssopus 350 



officinalis, Linn 350 



Hypoxys, Linn 26 



Carolinianwn 26 



erecta, Linn 26 



Ilex 315 



verticillata, Gray, var. tenui- 



folius, Eaton & Wright.. 315 



Ilysantbes 348 



gratioloides, Benth 348 



riparia, Raf 348 



lonidum concolor, Benth. & 



Hook 307 



IRIDACE^E (cv.) 23 



Iris, Linn 23, 364 



caurina, Hook 24 



Hookeri, Penny 24 



lacustris, Nutt 24 



prismatica, Pursh 364 



prismatica, Pursh 24 



Sibirica, Linn 24 



tenax, Dougl 24 



tridentata, 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, R. Br 176 



Juniperus 261 



communis, Linn, var alpina, 



Linn 361 



JuKCAc&as (ex.) 55 



Juncus, Linn 55, 365 



acuminatus, MX., var. a. legi- 



timus, Engl 62 



acuminatus, MX 62 



acuminatus, Torr 63 



acutiflorus, Hook 61, 62 



var. ft. minor, Hook 63 



alpinus, Villars, var. insiguis, 



Fries 62 



articulatus, Linn 61 



var. pdocarpus, Gray 62 



arcticus, Willd 57 



