512 



INDEX OF GENERA AND SPECIES. 



Isoetes Nuttallii, Al. Br., ii. 351. 



pygmsea, Engelm., ii. 351. 

 Isolepis, ii. 217. 



carinata, Hook. & Arn., ii. 

 217. 



koilolepis, Steud., ii. 217. 



leptocaulis, Torr., ii. 217. 



riparia, R. Br., ii. 217. 

 Isomeris, Nutt., i. 50. 



arborea, Nutt., i. 50. 

 Isopappus, Nutt., i. 310. 

 Isopyrtim, Linn., i. 9. 



Clarkii, Kellogg, ii. 427. 



Hallii, Gray, ii. 427. 



occidentale, Hook. & Arn., 

 i. 9. 



stipitatum, Gray, ii. 427. 



Isothecium myosuroides, 



Brid., ii. 414. 

 Italian Ray-Grass, ii. 323. 

 Iva, Linn., i. 343. 



axillaris, Pursli, i. 343. 



Hayesiana, Gray, i. 615. 

 Ivesia, Torr. & Gray, i. 182. 



Baileyi, Watson, i. 184. 



depauperata, Gray, i. 184. 



Gordoni, Torr. & Gray, i. 183. 



gracilis, Torr. & Gray, i. 184. 



Kingii, Watson, i. 184. 



lycopodioides, Gray, i. 183. 



Mnirii, Gray, i. 183. 



Pickeringii, Torr.,,i. 182. 



j>ygmcca, Gray, i. 183. 



santalinoides, Gray, i. 183. 



tridentata, Gray, i. 182. 



unguiculata, Gray, i. 183, ii. 

 444. 



Webberi, Gray, i. 183. 



Jacobinia Californica, Nees, i. 



589. 



Jamesia pauciflora, Nees, i. 428. 

 Janmea, Pers., i. 371. 



carnosa, Gray, i. 372. 

 Jerusalem Oak, ii. 47. 

 Jewel-weed, i. 93. 

 Judas-tree, i. 160. 



JUGLANDACEjE, ii. 92. 



Juglans, Linn., ii. 92. 



Californica, Watson, ii. 93. 



rupestri.s, Engelm., ii. 93. 



rupestris, Torr., ii. 93. 

 JUNCACE.E, ii. 201. 

 Juncellus, ii. 214. 

 Juncus, Linn., ii. 203. 



acuminatus, ii. 209. 



acutus, Lain., ii. 205. 



acutus, ii. 204. 



Balticus, Deth., ii. 205. 



Balticus, Benth. , ii. 205. 



Bolanderi, Engelm., ii. 208. 



Breweri, Engelm., ii. 205. 



bufonius, Linn., ii. 206. 



chlorocephalus, Engelm., ii. 

 210. 



communis, Meyer, ii. 206. 



compressus, HBK., ii. 205. 



Juncus Cooperi, Engelm., ii. 

 205. 



Drummondii, Meyer, ii. 206. 



dubius, Engelm., ii. 209. 



effusus, Linn., ii. 206. 



falcatus, Meyer, ii. 207. 



Leseurii, Bolander, ii. 205. 



longistylis, Torr., ii. 208. 



Menziesii, R. Br., ii. 207. 



Mertensianus, Meyer, ii. 210. 



Nevadensis, Watson, ii. 209. 



nodosus, Linn., ii. 208. 



obtusatus, Engelm., ii. 208. 



oxymeris, Engelm., ii. 209. 



Parryi, Engelm., ii. 206. 



patens, Meyer, ii. 206. 



phaeocephalus, Engelm., ii. 

 209. 



pictus, Philippi, ii. 205. 



robustus, Watson, ii. 204. 



sayinoidts, Engelm., ii. 207. 



supiniformis, Engelm., ii.208. 



tennis, Willd., ii. 207. 



triformis, Engelm., ii. 207. 



xipbioides, Meyer, ii. 209. 

 June-Grass, ii. 312. 

 Juneberry, i. 189. 

 Juniper, ii. 112. 

 Juniperus, Linn., ii. 112. 



andina, Nutt., ii. 113. 



Californiea, Carr., ii. 113. 



Cerrosianus, Kellogg, ii. 113. 



com munis, Linn., ii. 113. 



occidentalis, Hook., ii. 113. 



occidental is, ii. 113. 

 Jussisea, Linn., i.. 217. 



repens, Linn., i. 217. 



Kallstramia grandiflora, Torr. , 

 i. 91. 



maxima, Torr. & Gray, i. 



91. 

 Kalmia, Linn., i. 456. 



glauca, Linn., i. 457. 

 Karwinskia, Zucc., i. 100. 



Humboldtiana, Zucc., i. 100. 

 Kelloggia, Torr., i. 282. 



galioides, Torr., i. 282, ii. 452. 

 Kcntrophyta, Nutt., i. 156. 

 Kentucky Blue-Grass, ii. 312. 

 Kinnikinick, i. 453. 

 Knotweed, ii. 10. 

 Kochia, Roth, ii. 45. 



Americana, Watson, ii. 45. 



prostrata, ii. 45. 

 Koeleria, Pers., ii. 301. 



cristata, Pers., ii. 301. 



nitida, Nutt., ii. 302. 



trunca,ta, Torr., ii. 302. 

 Krameria, Linn., i. 59. 



canescens, Gray, i. 60. 



lanceolata, Torr., i. 60. 



parvifolia, Bentb., i. 60. 

 Krymtzkia, Fisch. & Mey., i. 

 527. 



leiocnrpa, Fisch. & Mey., i. 

 528. 



Kymaplcurci lietcrophylla, 

 Nutt., i. 439. 



LABIATE, i. 589. 

 Labrador Tea, i. 458. 

 Lace-Fern, ii. 338. 

 Lace-Pod, i. 49. 

 Lachnostoma, HBK., i. 620. 



hastulatum, Gray, i. 620, ii. 



464. 

 Lactuca, Tourn., i. 442. 



Canadensis, Linn., i. 619. 



integrifolia, Nutt., i. 442. 



leucophrea, Sibth. , i. 442. 



pulchella, DC., i. 442. 

 Ladies' Tresses, ii. 135. 

 Lady-Fern, ii. 344. 

 Lady's Mantle, i. 185. 

 Lady's Slipper, ii. 137. 

 Lagoon-Grass, ii. 324. 

 Lagophylla, Nutt., i. 367. 



dichotoma, Benth., i. 367. 



filipes, Gray, i. 367. 



minima, Kelt., i. 367. 



ramosissima, Nutt., i. 367. 

 Lagot/utmnus, Nutt., i. 407. 



ambiguus, Nutt., i. 407. 



microphyllus, Nutt., i. 407. 

 Lamarckia, Moench, ii. 299. 



aurea, Moench, ii. 299. 

 Lamb's Quarters, ii. 46. 

 Lamiurn amplexicaule, Linn., 



i. 590. 



Laphamia, Gray, i. 396. 

 Larch, Western, ii. 112. 

 Larix, Mill., ii. 112. 



Lyallii, Parlat., ii. 112. 



occidentalis, Nutt., ii. 112. 

 Larkspur, i. 10. 

 Larrea, Cav., i. 92. 



Mexicana, Moric., i. 92. 

 Lastarrisea, Remy, ii. 39. 



Chilensis, Remy, ii. 39. 

 Lasthenia, Cass., i. 384. 



ambigua, Gray, i. 382. 



Californica. Lindl., i. 384. 



glaberrima, DC., i. 384. 



glabrata, Lindl., i. 384, ii. 



457. 



Lastrcea arguta, Brack., ii. 346. 

 Lathy rus, Linn., i. 158. 



albus, Watson, ii. 442. 



Californicus, Dougl., i. 158. 



dccn.phyllus, Hook., i. 159. 



decaphyllus, Hook. & Arn., 

 i. 159. 



dissitifolius, Nntt., i. 158. 



Lanszwertii, Kell., i. 159. 



linearis, Nutt., i. 158. 



littoralis, Endl., i. 160. 



luaritimus, Bigel., i. 158. 



mantimus, Torr., i. 159. 



myrtifolius, Muhl., i. 159. 



Nevadensis, Watson, i. 160, 

 ii. 442. 



ochroleucus, Torr., i. 159. 



ornatus, Nutt., i. 160. 



