INDEX. 



313 



Mayflower, 158. 



Meadow Rue, 61. 



Medeola, 250. 



Medlar, 117. 



Medulla, pith ; Medullary rays, 107, 189. 



Membranous, thin, like a membrane. 



Mentha, 182. 



Merocarp, one of the carpels of a Cremo- 

 carp, 133. 



Metamorphosis, a transformation. 



Midrib (obsolete) the same as midvein. 



Midvein, the central vein of a leaf, 21. 



Milkweed, 195. 



Mitriform, formed like a conical cap. 



Mimosa, 124. 



Modified Leaf, 120. 



Moulds, 27. 



Monos (in Greek compounds), one ; as 



Monadelphous, stamens in one set, 



Monandrous, with one stamen. [91. 



Monkshood, 64. 



Monocarpic perennials, 263 



Monocotyledonous, with one seed- 

 lobe, 267. 



Monoecious, with 2 kinds of flowers to- 

 gether on the same plant, 214, 231. 



Monogynous, with one pistil. 



Monopetalous. See Gamopetalous. 



Moosewood, 192. 



Morning Glory, 91, 118, 182. 



Mosses, 16. 



Mountain Ash, 117. 



Mouse-ear Everlasting, 137. 



Moving Plant, 123. 



Mucronate, ending with a sharp, ab- A 

 nipt point (mucro), 244. \\ \ 



Muhlenburg, Henry, 50. 



Mulberry, 116. 



Mullein, 174, 177-8. 



Multi (in composition), many ; as 



Multifid, cut half-way into many seg- 

 ments. 



Muricate, bearing short, hard points. 



Muriform, like a wall of mason-work. 



Muscology, a treatise on Mosses. 



Mushroom, 27. 



Mustard, 102. 



Mustard, Hedge, 185. 



Mycelium, the first, underground growth 

 (thallus) of the Fungi or Mushrooms. 



N. 



Naked receptacle, without chaff, 139. 



Naked seeds, 216. 



Narcissus, 261. 



Napiform (root), turnip-shaped. T . 



Nasturtion, 95. rj 



Natant, swimming ; under water. rfk 



Naturalized and Foreign Plants, < 



143, 176. 7 



Nectar, the sweet secretion of flowers. 

 Nectarine, 116. 

 Nectary, an appendage secreting 



nectar, 47. \VU 



Nepeta, 177. 

 Nepenthes, 161. 

 Nettle, 104. 

 Net- veined, same as reticulate-veined, 55. 



Neutral flower, one with neither stamens 



nor pistils, as in Hydrangea. 

 New Zealand Flax, 258. 

 Nightshade, 131. 

 Nipplewort, 91. 

 Node, nodus, a joint, 78, 85. 

 Nodding (flower), inclined, like the Ery- 



thromum. 

 Nomenclature, the rules for naming genera 



and species. 



Normal, according to rule. 

 Norway Spruce, 218, 222. 

 Nucleus, the kernel (of ovule or seed). 

 Nut, same as glans. 

 Nutgalls, 213. 

 Nutgrass, 268. 



O. 



Oak, 35, 207. 



Oats, 279. Wild, 251. ^ 



Ob (in composition) denotes in- /TV jffl 



version ; as \&j m 



Obcordate, inversely heart- ' ir 



shaped. 



Oblanceolate, inversely lance-shaped, 47. 

 Oblique, unequal-sided, as an Elm leaf. 

 Oblong, a broadly linear form. 

 Obovate, inversely ovate, 47. 

 Obsolete, past, or out of use ; 



undeveloped, 133. 

 Obtuse, blunt or round at 



apex, 35. 

 Obvolute, half equitant, each 



leaf in the bud embracing 



only one margin of the other. 



Sage. 



Ochreae, sheathing stipules, 200. 

 Ochroleucous, cream-colored, pale 



yellow. 



Octo (in composition), eight ; as 

 Octandrous, with 8 stamens. 

 CEnothera, 125. 



Officinal, for sale in the shops, 171. 

 Officinal Speedwell, 170, 176. 

 Offset, a short lateral shoot. 

 Onagraceae, 130. 

 Onion, 258. 



Operculum, the lid of a Moss, 14. 

 Opium Poppy. 68, 70. 

 Opposing (petals), petals and 



stamens opposite, 41, 167. 

 Opposite (leaves), two at 



node. 78. 



Orbicular, circular, 152. 

 Orchard Grass, 274. 

 Orchidacese, 239. 

 Orchidaceous flower, 6- 



parted, 1-lipped. 

 Orchis, 233. 



Organized, with mutually-re- 

 lated organs, 13. 

 Orontium, 232. 

 Orris-root, 246. 

 Orth6tropous (ovule), erect, not 



bent, 214. 

 Osmorhiza, 131. 

 Osmund Fern, 24. 



Osseous, bony, like the Peach stone. 

 Ostrya, 214. 



