Arabis rhomboidea, iv, 66; xviii, 358. ---- patens, xlii, 49. Arbutus uva-ursi, iv, 62. Argemone georgiana, xxv, 75. Arum polymorphun, xlv, 173. Asarsum, characters of the genus, xlii, 18. Asclepias, amæna, xi, 173. ---- incarnata, xi, 173. ---- lanceolata, i, 252.^f ---- longifolia, xi, 173. ---- obtusifolia, xi, 173. ---- quadrifolia, xi, 172. ---- venicillata, xi, 173. Aspidium aculeatum, xlv, 46. Astilbe, characters of the genus, xlii, 39. ---- decandra, xlii, 39. ---- japonica, xlii, 39. ---- rivularis, xlii, 39. Atheropogon apludoides, iv, 58. Avicennia tomentosa, v, 296. Azalea nudiflora, size of, in Florida, xxvi, 319. Baptisia simplicifolia, xxv, 74; -- mollis, xliv, 81. Batschia canescens, xi, 168. Betula glandulosa, xlv, 30. ---- Littelliana, xlv, 30. ---- nana, xlv, 31. ---- papyracea, xlv, 31. ---- pumila, xlv, 29. Boletus igniarius, analogous to animal substances _A. Eaton_, vi, 177. Botrychium simplex, vi, 103.^f Boykinia aconitifolia, xlii, 21. Campanula rotundifolia, xlv, 27. Capsicum baccatum, v, 289. Cardamine rotundifolia, xviii, 356; xlii, 30. ---- uniflora, vii, 63. Caricography, _C. Dewey_, vii, 264; viii, 93, 264; ix, 60, 257^f; x, 30, 265^f; xi, 147,^f 304^f; xii, 296^f; xiv, 351^f; xxv, 140^f; xxvi, 107,^f 376; xxvii, 236^f; xxviii, 270; xxix, 245^f; xxx, 59^f; xxxix, 50^f; xliii, 90^f; xlviii, 140^f; xlix, 42.^f Carices, systematic arrangement of, _C. Dewey_, xi, 319. ----, list of, in northern parts of America, _C. Dewey_, xxviii, 271. ----, in the herbarium of Muhlenberg, _C. Dewey_, xxv, 143. ----, three new species in Alabama, _S. B. Buckley_, xlv, 173. ----, four new species in New England, _E. Tuckerman_, xlv, 39.