=Corallorhiza=, generic description of, 278 =C. Corallorhiza=, specific description of, 278 =C. multiflora=, specific description of, 280 =C. odontorhiza=, specific description of, 279 =C. Wisteriana=, specific description of, 279 Cornel, Dwarf, 20 _Cornus Canadensis_, 21 Cowslip, American, 5, 129, 142 Cranberry Swamp, 62, 64, 70, 72, 86, 181 _Cratægus_, 13 Crowfoot Family, 5, 171 Cud-Weed, 237 Currants, wild black, 220 Crystal Lake, Orange Mountains (N. J.), 232, 233 Crystal Spring, Snuff Hollow, Notch Valley, 113, 212, 221 _Cynorchis_, 110 =Cypripedium=, 54, 72, 104, 109; dates of flowering, 34, 138; cross-fertilization and fertilization, 57, 58, 178; origin of name, 58, 242; seedlings, 77-79, 135; culture of New England species, 80-82; torsion of stem and labellum of, 92, 93; organism, 108; generic description, 242. _See_ Lady’s Slipper _and_ Moccasin-Flower. =C. acaule=, specific description, 246; haunts, 5, 18, 56, 60, 67, 103, 116, 134, 172-174; colony of two hundred plants, 78; most common Cypripedium of New England, and possibly of North America, 81; culture, 82; seed-capsule, 116 =C. arietinum=, specific description, 243; haunts, 37, 42, 56, 61, 80, 98; soil of, 100; destroying worm, 135 =C. calceolus=, European Yellow Lady’s Slipper, 53, 58 =C. Californicum=, native of Pacific slope, 43 =C. candidum=, specific description, 244, 245; haunts, 61, 184 =C. fasciculatum=, native of the northwestern Pacific slope, 43 =C. hirsutum=, specific description, 245; haunts, 3, 57, 59, 60, 80; most common Cypripedium of our continent, 81; seedlings, 178 =C. Montanum=, the Fragrant White Lady’s Slipper of the Rocky Mountain region, 243 =C. parviflorum=, specific designation, 246; haunts, 18, 57, 60, 61, 80, 161; seedlings, 161 =C. passerinum=, native of northwestern Pacific slope, 60 =C. reginæ=, specific description, 244; haunts, 3, 19, 43, 55, 61, 68, 72, 184; ancient colony, 77-79; seedlings, 78, 81 D Dale, T. Nelson, quoted, on ancient Hoosac Lake, 221 Darwin, Charles, quoted on _Orchidaceæ_— fertilization of, 51, 108; self-fertilization of, 51; cross-fertilization of, 52, 53; seeds of, 57; extinction of, 92; structure of, 93 “Dead holes,” 63, 68, 73, 88 Dead-Men’s Fingers, and Thumbs, 110. See _Habenaria psycodes_, and _Habenaria grandiflora_ Deaf-Man’s Spring, 211 Decoration Day, 44, 61, 141 Deerfield, arch, 221; river, 224; valley, 224 Deer-Mice, 173 Deer Park, Mosholu (N. Y.), 161, 164 _Denticulus canis_, or _Dens caninus_, 127. _See_ Dog’s-Tooth Lily Devil’s Darning-Needles, 145 Devil’s Paint-Brush, 236 _Dioscorides_ (23-79, A.D.), quoted on origin of plant names, 126, 127, 140, 237; fern names, 193