INDEX. 
{Synonyms in italic. Page numbers of principal entries in heavy-face type.] 
Page. 
Artemisia 314 
Aspen, quaking 316 
Bethel, Enisworth 320 
wad Merritt soe survey of Colorado.. 316 
biological ver Wromite....52.,5 316 
lone 338 
proetae “e 348 
angustifolia 361 
barbata . . 337 
bradburii 357 
coerulea 361 
ones 343 
erianthera 343 
is. 372 
grandiflora 357 
325 
Chionophila 322, 324 
j B24 
Co ao 321 
grandiflora 323 
parviflora 323 
Colorado, biological survey of 316 
Dasanthera -. 327 
ruticosa . 378 
Subgenus of Penstemon 327 
Elmigera, subgenus of Penstemon.........-. 325 
Pikeastenen, sagen of Penstem nairaey 825 
PPS; 316 
Garrett, A. O.. 320 
Gerardia f 327,377 
Greasewood . . 314 
Isotype, tion of 323 
Jones, M. E., system of life zones............ 317 
Juniper... 315 
Leiostemon ambiguus 364 
purpureus , 364 
paged parviflora 365 
ie Zones... .. 316,317 
canadensis. 323 
linaria. 323 
subandina . 323 
323 
Macbride, J. F.. 321 
Merriam, C. H., account of life zones......... 316 
AEG R icceis uc 314 
Oak. 52 315 
320 
aieegg ® oy fiela work of 318 
Saecvcecdesedcccece 554,315, 317, 322, 325 
econ : 
acuminatus. 339, 345, 359 
congestus 
tus. 367 
albidus... 338 | 
: Page. 
ee nf Ipi 348 
riparius 349 
ambiguus 364 
Soli 364 
angustifolius 861 
caudatus B62 
arenicola 862 
auriberbis 839 
ricomus 344 
AZUTEUS OMUIGWUE . 5 <5. conse se cnenesen pas 379 
ba 373 
barbatus 337 
puberulus 337 
torreyi 336 
trichander 337 
bradburii 357 
brandeg 849 
brevifoliu 870 
bridgesii 378 
GRORINLOPUS o55i cis ee 363, 375, 376 
perbrevis 375 
PUTT MOONE 6 oasis os acccc cctv geeicenen 374 
caryi 354 
caudatus 362 
cleburnei B44 
336 
361 
linus 371 
loradoensis 363 
sileri 363 
comarrhenus B56 
GOBTTONS «0 oo nn <senganantin amon 366 
coeruleo-~PUTPUTEUS.....---------++6 346, 356 
INOCUES 64 ccdadicsacewectvccsa4ekaton 365 
violaceus 365 
J 337 
crandallii 374 
COAMOUNGE 8 Sico ihn sckccecesnadeoces 378 
cristatus 343 
CYMUGMLOIUS. 66 ce venscs cote neces tewhen ee: 352 
QTONIGUN 6 ose 0 50 Sa EA ho gles 349 
ORUS 5 2. eve sn auebe shagwe ---- 853 
SUDSIADOP. 5 os sva veces. coco we vnsnree 352 
yaneus 349, B51 
ap as | iRise Pe entrees ere 354, 381 
CYStHOPHOFUS. ns ss wt eens Seen 363 
deustus. B64 
digi QUICENG. «fos occ e532 et cere 372 
dolius B41 
ea. 337 
eatoni 335 
undosus 336 
eriantherus...........-------------+-- B42, 348 
saliens 348 
erosus 367 
