Cornus sericea LINN..........- 
Cornus sericea var. asperifo- 
Was DO 2 aancuih gicde gone 
Cornus stolonifera MICHX...... 
Cornus stricta LAM........... 
Cornucopia perennans WALT.. 
Cornucopia hiemalis WALT... 
Corona-solis TOURN........... 
Coryanthus NutTvT............ 
Corydalis DC................. 
——aurea WILLD........... 
——aurea var. micrantha 
—canadensis GOLDIE...... 
—cucullaria PERS......... 
—flavula D 
—formosa PuRSH......... 
—-glauca PURSH........... 
— mirrantha WATs and 
COUT. 5 cnn vee ee 
—speciosa MAX........... 
Corylaceae LINDL............. 
Corylus LINN ......... cc cence 
—-americana WALT..... “ 
Corylus avellana LED......... 
——humilis WILLD......... 
Cor.lus rostrata AIT........... 
Corylus rostrata var. mand- 
schurica REGEL....... 
Corynandra SCHRAD.......... 
Corynostigma PRESL.......... 
Cosmanthus NOLTE........... 
—- fimbriatus A.DC 
Costia WILLK. (1858).......... 
Costia WILLK. (1860).......... 
Costinus TOURN.............. 
Coulterina O.K............66. 
Courtoisia REICH....... ... oe 
Cracca LINN.......-20eeee eee 
Cracca caroliniana ALEF...... 
Cracca virginiana (LINN.)..... 
Oracca RIV sseevesees soeaieees 
Crassocephalum MOENCH..... 
Crataegus LINN...........006. 
Crateeyus carrierei CARR...... 
Crataegus coccinea LINN..... 
Crataegus coccinea var. mollis 
T. AND G 
—coccinea var. oligandra 
T. ANDG 
—coccinea var. viridis T. 
AND G 
—— coronaria SALISB........ 
Crataegus crus-galli LINN...... 
Crataegus crus-galli var splen- 
dens AIT. 225% ccsssiaus 
— glandulosa var. rotundi- 
folia REGEL.......... 
——latifolia PERS........... 
+-—Jaurifolia MED.......... 
——lJavallei HoRT. Par.... 
——leucophaeus MOENCH... 
INDEX. 779 
401 Crataegus lobata Bosc........ 289 
—elucida MILL............ 287 
400 Crataegus mollis SCHEELE..... 288 
401 Crataegus pyrifolia AIT....... 289 
400 —-pyrifolia LAM........... 284 
65 —racemosa LAM.......... 286 
65 ——rotundifolia MoENCH 288 
539 ——serrulata Porr.......... 284 
450 —subvillonsa TorR........ 288 
254 ——texana BUCKL........... 288 
254 —tomentosa EMERS....... 288 
Crataegus tomentosa LINN..... 289 
255 Crataegus tomentosa var. mol- 
253 HS: GRAY vices cena veas 
253 —tomentosa var. pyrifolia 
255 GRAY seco trices oness 289 
253 —viridis Ell.........4.865 288 
255 —-watsoniana ROEM.. .... 287 
Cratericarpum SPACH......... 381 
255 Cremocephalu:y CASS......... 554 
255 Cremopyrum SCHUR.......... 85 
254 Crepidium BLUME............ 172 
186 Crepidium NUTT......... .... 568 
187 ——runcinatum NuTtT...... 568 
188 Crepidium TAUSCH........... 567 
187 Crepidospermum FR.......... 568 
188 Crepinea REICH............... 567 
187 Crepis LINN....... 0. cece eee 567 
Crepis biennis var. americana 
187 DO ke sti teceaaoierts 568 
270 biennis var. B. Hoox... 568 
375 Crepis runcinata (JAMES)...... 568 
485 Crinipes HOCuST.............. 69 
436 CrinitaMOENCH.............. 516 
85 Crinitaria Cass............... 515 
160 Criosanthes RAF..... 162 
346 Critesion RAF................ 86 
263 —-geniculatum RAF....... 87 
433 -Critho E. MEY................ 86 
327 Crithopsis JAUBet SPACH.... 86 
316 Critonia. DG). .555 ssedseses es 501 
328 ——kubhnia GAERTN... .... 503 
315  Critoniopsis Scu.-BiP ........ 499 
273 Crocanthemum SPACT........ 364 
554 CrossostigmaSPACH.......... 376 
287 Crotalopsis MICHX............ 310 
287 Cruciferae...............6... 256 
288 Cryosanthes borealis RAF..... 164 
Cryptoceras SCHOTT.......... 254 
288 Cryptoglochin HEUFFL....... 105 
Cryptolobus SPRENG.......... 311 
288 Cryptopleura NUPT........... 564 
Cryptostachys STEUD......... 62 
288 Cryptotaenia DC.............. 397 
284 ——canadensis DC.......... 397 
287 CrystallopollenSTEEetTz........ 499 
Cubospermum Lour.......... 375 
287 Cucubalus SPACH............. 219 
——niveus NUIT............ 220 
288 ——stellatus LINN ......... 221 
288  Cucullaria bulbosa RaF....... 253 
287 Cucurbitaceae.......... ... 493 
287 Oujubia AUEPs... snc cnsdenes 315 
289 Cunila hispidaSpRENG. ...... 451 
