1G 



3 discolor Muhl. 



4 lanceolatus W. Common Thistle. 



5 muticus Ph. 



102 Cochlearia L. 



§ 1 armoracia L. Horse Radish. 



103 Collinsonia L. 



1 canadensis L. Horse Balm. 



104 Comptonia Gaert. 



1 asplenifolia Ait. Sweet Fern. 



105 Conium L. 



1 maculatum L. Poison Hemlock. 



106 Convallaria L. 



1 bifolia L. 



2 multiflora L. Solomon Seal. 



3 pubescens W. 



4 racemosa L. 



5 stellata L. 



6 trifolia L. Cumrnington. 



7 umbellulata Mx. Lily of the Valley. 



107 Convolvolus L. 



1 sepium L. Field Bind Weed. 



2 stans Mx. Dwarf Morning Glory. Amherst and Granby. 



108 Conjza L. 



1 camphorata Muhl. Marsh Flea Bane. N. Haven. 



109 Coptis Salisbury. 



1 trifolia Salis. Gold Thread 



110 Corallorhiza Haller. Cymbidivm W. 



1 odontorrhiza W. Coral Teeth. 



111 Cornus L. 



1 canadensis. L. Dogwood. Cornel. 



2 circinnata l'Her. 



3 florida L. False Box. Dogwood. 



4 paniculata l'Her. 



5 sericea l'Her. 



112 Corydalis Vent. 



1 cucullaria Pers. Colic Weed. 



