150 



Bulletin 187 



Milkweed, 236 

 Milkwort, 221 

 Millet, 171 

 Millet Grass, 170 

 Mimulus, 243 

 Mint, 240 

 Mist, 199 

 Mitchella, 247 

 Mitella, 209 

 Mithridate Mustard, 



208 

 Miterwort, 209 

 Moccasin Flower, 187 

 Mocker Nut, 191 

 Mock Pennyroyal, 239 

 Moeliringia, 198 

 Molina, 170 

 Mollugo, 198 

 Monarda, 240 

 Moneses, 232 

 Moneywort, 234 

 Monkey-flower, 243 

 Monotropa, 232 

 Moonseed, 203 

 Moonwort, 159 

 Moosewood,"224, 227 

 Morning Glory, 237 

 Morus, 194 

 Moss Pink, 237 

 Motherwort, 239 

 Mountain Ash, 215 



Fringe, 204 



Holly, 223 



Mint, 240 



Rice, 170 

 Mouse-ear Chickweed, 



199 

 Moxie Plum, 232 

 Mud Plantain, 183 

 Mugwort, 250 

 Muhlenbergia, 170 

 Mulberry, 194 

 Mullein, 244 

 Mullein Pink, 199 

 Musk-plant, 243 

 Musquash Root, 230 

 Mustard, 205 

 Myosotis, 238 

 Myrica, 191 

 Myeicace.^, 191 

 Myriophyllum, 229 

 Nabalus, 256 

 Naiad, 163 

 Najadace.e, 163 

 Najas, 163 

 Nannyberry, 248 

 Naumbergia, 234 

 Neckweed, 244 

 Nemopanthus, 223 

 Neobeckia, 207 

 Nepeta, 240 

 Nettle, 194 

 Nettle Tree, 193 

 New Jersey Tea, 224 

 Nicandra, 242 



Nigger-head, 256 



Night-flowering Catch- 

 fly, 200 



Nightshade, 242 



Nimble Will, 170 



Nine-bark, 213 



Nipplewort, 255 



Nodding Chickweed, 

 199 



Nonesuch, 219 



Norta, 208 



Nothoholcus, 169 



NyctaginacevE, 198 



Nymphaea, 201 



Nymph^ace^, 201 



Nymphoides, 236 



Nyssa, 231 



Oak, 193 



Oakesia, 185 



Oat, 166 



Oat Grass, 166 



CEnothera, 229 



Old-witch Grass, 171 



OLEACEiE, 235 



Onagrace^, 228 

 Onion, 184 

 Onobrychis, 219 

 Onoclea, 157 

 Onopordon, 256 

 Ophioglossace^, 159 

 Ophioglossum, 159 

 Ophrys, 188 

 Opulaster, 213 

 Orach, 197 

 Orange Grass, 225 

 Orange Root, 202 

 Orchard Grass, 167 



ORCHIDACEiE, 186 



Orchis, 189 

 Origanum, 240 

 Ornithogalum, 185 

 Orobanchace^, 245 

 Orobanche, 245 

 Orpine, 209 

 Oryzopsis, 170 

 Osier, 190 

 Osmorrhiza, 230 

 Osmunda, 158 



OSMUNDACE^, 158 



Ostrich Fern, 157 

 Ostrya, 192 

 Oswego Tea, 240 



OXAXIDACEiE, 220 



Oxalis, 220 

 Ox-eye, 254 

 Ox-eye Daisy, 253 

 Oxybaphus, 198 

 Oxycoccus, 233 

 Padus, 214 

 Painted Cup, 242 



Trillium, 186 

 Panax, 229 

 Panic Grass, 170 

 Panicularia, 169 

 Panicum, 170 



Pansy, 227 

 Papaver, 204 

 Papaverace^, 204 

 Pappoose Root, 204 

 Parietaria, 194 

 Parnassia, 209 

 Parsnip, 230 

 Parthenocissus, 224 

 Partridge Berry, 247 

 Paspalum, 171 

 Pastinaca, 230 

 Pasture Thistle, 253 

 Pear, 215 

 Pearlwort, 199 

 Pearly Everlasting, 



249 

 Pedicularis, 244 

 Pellsea, 157 

 Pellitory, 194 

 Peltandra, 182 

 Penny Cress, 208 

 Penthorum, 209 

 Pentstemon, 244 

 Peppergrass, 207 

 Pepperidge, 231 

 Peppermint, 240 

 Pepper-root, 206 

 Pepperwort, 207 

 Peramium, 187 

 Perennial Pea, 218 

 Periwinkle, 236 

 Persicaria, 195 

 Perularia, 188 

 Petasites, 256 

 Phalaris, 171 

 Phegopteris, 157 

 Philotria, 165 

 Phleum, 171 

 Phlox, 237 

 Phragmites, 172 

 Phryma, 245 

 Phbymac^, 245 

 Physalis, 242 

 Physalodes, 242 

 Physocarpus, 213 

 Physostegia, 240 

 Phytolacca, 198 



PHYTOLACCACEyE, 198 



Picea, 161 

 Pickerel-weed, 183 

 Picris, 256 

 Pigeon Berry, 198 



Grass, 172 

 Pignut, 191 

 Pigweed, 197 

 Pilea, 194 

 Pimbina, 248 

 Pimpernel, 234 



PlNACE^, 161 

 Pine, 162 

 Pine Drops, 232 

 Pinesap, 232 

 Pineweed, 225 

 Pinguicula, 244 

 Pink, 199 



