I?^DEX TO THE 
Many-flowered Aster 117 
Many-flowered Sedge 151 
Marginated Sedge - 155 
Millet Sedge - - 158 
Mulberry, red - - 162 
Mountain Mahogany - 175 
Mahogany, mountain - 175 
Mocker-nut, hickory - 179 
Mercury, Virginian, three- 
seeded - - 184 
Mercury, Carolinian, three- 
seeded - - 184 
Mole -plant - - 186 
Moon-seed - 199 
Marginal Shield-fern - 208 
Maiden-hair - - 213 
Mow-hair - - - 213 
N. 
Nettle-leaved Germander 30 
Nep - - 32 
Nettle-leaved Vervain 41 
Narrow-leaved Cats’ -tail 149 
Nettle, pellucid - 160 
Nettle, common - - 161 
Nettle, hemp - 161 
New Jersey Pine - - 183 
New York Shield-fern 209 
O. 
Officinal Hedge-mustard 56 
Orach-leaved Cacalia 103 
Obovate-leaved Groundsel 125 
Ox-eye Daisey - 126 
Ox-eye, smooth - - 128 
Orchis, yellow-fringed 136 
Orchis, white-fringed 136 
Obtuse-leaved arrow-head 165 
Oak, willow - * 167 
Oak, Bartram’s - 168 
Oak, Burner’s - 168 
Oak, various-leaved - 168 
Oak, water - 168 
Oak, barren - 168 
Oak, black - 169 
Oak, dyer’s - 169 
Oak, red - 170, 169 
Oak, two-coloured 169 
Oak, scarlet - 169 
Oak, Spanish - - 170 
Oak, downy -red 170 
Oak, pin - - 170 
Oak, swamp Spanish 170 
Oak, bear - - 170 
Oak, black scrub - - 170 
Oak, dwarf red - 170 
Oak, Banister’s - - 170 
Oak, upland white 171 
Oak, iron - - 171 
Oak, barren white 171 
Oak, post - - 171 
Oak, white - - 171 
Oak, chesnut white - 171 
Oak, swamp chesnut 171 
Oak, swamp white 172 
Oak, rock chesnut - 172 
Oak, yellow - - 172 
Oak, chinquapin - 173 
Oak, dwarf chesnut 173 
Old-field Birch - 175 
Oil Nut - - 178 
Osmunda, royal - 206 
Osmiinda, tall - - 206 
Osmunda, interrupted 206 
One-flowered Orobanche, 
(addenda) 
Orobanche, one-flowered 218 
P. 
Purslane - ^ - 8 
Puccoon - 8 
Papaw - - 19 
Polygamous Meadow-rue 21 
Purple Meadow-rue 22 
Penny-royal, bastard 39 
Penny-royal, bastard linear- 
leaved - - 40 
Purple Toad Flax 44 
Pale-flowered Louse-wort 46 
Painted Cup - 49 
Pepper-grass, wild 52 
Pepper-wort, wild 52 
Perennial Lupin - 71 
Pea-vine, myrtleJeaved 72 
Perennial Kidney-bean 81 
Potatoe-vine, wild - 82 
Poor Robert’s Plantane 106, 92 
Plantane -leaved Cudweed 106 
Philadelphia Flea-bane 107 
Plowman’s Wort - 110 
Phlox-leaved Aster - 112 
Panicled Aster - 113 
Panicled Sedge' - 152 
Plantane Sedge - 157 
Pellucid Nettle - 160 
