Index and Glossary 



207 



MES 



Mespilus^ 166 



Micropyle (Gr. mikros, small ; pule, a 



gate). The opening which leads into 



the seeds and ovules, 3, 122 

 Midrib. The central vein which runs 



from the base to the apex of the leaf, 



Millet, 188 



Mivioseas, 162 



Mint, 173 



Mistletoe, growth of, 34, 90 



Mixed inflorescence. Inflorescence where 

 there is a mixture of definite and in- 

 definite, 99 



Molecular hypothesis, 15 



Monadelphous (Gr. inonos, one ; adel- 

 phos, a brother). Union of stamens 

 into one bundle by means of their fila- 

 ments, 114 



Moniliform (Gr. monile, a necklace). 

 Applied to that form of root which has 

 several contractions, making it look 

 like beads on a necklace, 33 



Monkshood, 157 



Monochlamydeous (Gr. monos, one ; 

 chlamus, a cloak). Flowers which 

 have only one floral envelope, 100 



Monocotyledonous (Gr. monos, one; kolzi- 

 ledon). Possessing but one cotyledon 

 in the embryo : characteristic of the 

 leaves, 74 ; root, 29 ; stem, 44 . 



Monocotyledons, 5, 153, 155, iSo 



Monoecious (Gr. jnonos, one ; oikos, a 

 house). Plants which have the sta- 

 mens and pistil on different flowers 

 but on the same plant, 102 



Monopodium (Gr. monos, one ; pons, 

 Podos, a foot). In branching, where 

 several branches grow from a common 

 axis, 67 



Mouse-ear Ckickzveed, 161 



Mousetail, 158 



Movements of plants, 151 



Movements of protoplasm, 8 



Movements of water in plants, 145 



Mucilage, 7 



Mucronate (Lat. mucronatus, pointed). 

 Applied to the leaf when the apex is 

 flattened, with a sharp point growing 

 out, 78 



Mullein, 17s 



Multicostate(Lat. multus, many ; casta, 

 a rib). A leaf with several principal 

 veins, 75 



Multifoliate (Lat. multus^ many ; 

 folium, a leaf). A leaf with many 

 leaflets springing from a common 

 point, 80 



Multilocular (Lat. 7mdtus, many ; locu- 

 ins, a cell). A cavity divided into 

 several cells, as in se\eral ovaries, 120; 

 and fruits, 141 



Mustard, 160 



Myosotis, 175, 176 



Myosurus, 158 



Myrica, 179 



Myricex, 179 



Myrrhis, i6g 



OST 



JsTAPIFORM (Lat. napus,& turnip). 



■*■ _ Aroot which is swollen in a turnip- 

 like manner, 32 



Narcissus, 185 



Nasturtium, 160 



Natural system, 153 



Nectary (Lat. nectar, honey). Recepta- 

 cles in the flower containing honey, 111 



Nitric acid and nitrates, 35 



Nitrogen of plant, whence obtained, 35 



Node (Lat. nodus, a knot). The points 

 on the stem from which the leaves are 

 given off, 60 



Nodulose (Lat. nodus, aknot). Applied 

 to roots which have knot-like swell- 

 ings, 33 



Normal root. The root which is formed 

 by the direct prolongation of the 

 radicle, 29 



Nucleus (Lat. a kernel) A mass of proto- 

 plasm aggregated at a certain point in 

 the cell, 117 ; also thtinternal portion 

 of the ovule in which the embryo is 

 formed, 122 ; and therefore the portion 

 of the seed within the seed coats, 4 



Nut (Lat. n7cji:). Anachene with har- 

 dened walls 42 



Oak, 180 



*^ Oats, 188 



Obcordate (Lat. o&, inversely ; cor, a 

 heart). Inversely heart-shaped. Ap- 

 plied to the outline of leaves, 79 



Oblong, Applied to leaves, 79 



Obovate (Lat. ob, inversely ; , oziaius, 

 egg-shaped). Applied to the outline 

 of leaves, 79 



Obvolute (Lat. ohvolutus, covered over). 

 When the leaves in the bud are partly 

 covered over one another, 66 



Ocyjnum, 174 



CEnantke, 169 



Offset. A short thick branch whose 

 terminal bud takes root, 55 



Old Man's Beard, 158 



Onohrychis, 163 



Oosphere (Gr. oon, an egg ; spkaira, a 

 globe). Cells formed within the em- 

 bryo-sac of conifers, 129 



Open bundles. Fibro-vascular bundles 

 which contain cambium, 44 



Ophrys, 182 



Opoponax, 170 



Opposite leaves, 84 



Orctche, 177 



Orchidace^, 155, 180 



Orchis, 180, 182 ; fertilisation in, 181 



Organic elements, 34 



Ornithogalum, 184 



Orthotropous (Gr. ortkos, straight; trepo, 

 I turn). Whenihe ovule is straight, 123 



Osier, 179 



Osmosis (Gr. os7nos=:osis, an impulse). 

 The passage of liquids through a per- 

 meable membrane, 36 



Ostrya, 180 



