On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina xiv
... Stem and Leaf - stalk . Bud Protection in Negundo aceroides Bud Protection in Sophora japonica Bud Protection in Citharexylum quadrangulare Bud Protection in Rhus glabra ( after Feist ) . Bud Protection in Kalmia latifolia . Bud ...
... Stem and Leaf - stalk . Bud Protection in Negundo aceroides Bud Protection in Sophora japonica Bud Protection in Citharexylum quadrangulare Bud Protection in Rhus glabra ( after Feist ) . Bud Protection in Kalmia latifolia . Bud ...
Pagina xv
... Stem of Pansy ( after Colomb ) . Transverse Section of Stem of Galium Aparine ( after Colomb ) 207 208 FIG . 320 Ocrea of Plane . PAGE 208 321-326 LIST OF ILLUSTRATIONS XV.
... Stem of Pansy ( after Colomb ) . Transverse Section of Stem of Galium Aparine ( after Colomb ) 207 208 FIG . 320 Ocrea of Plane . PAGE 208 321-326 LIST OF ILLUSTRATIONS XV.
Pagina xvi
... Stem of Plane ( after Colomb ) 209 , 210 327-331 Transverse Section of Stem of Polygonum lapathi- folium ( after Colomb ) 332 Ocrea of Polygonum 333 Shoot of Potamogeton 334 Leaf of Desmodium canescens 211-213 213 213 217 219 , 220 221 ...
... Stem of Plane ( after Colomb ) 209 , 210 327-331 Transverse Section of Stem of Polygonum lapathi- folium ( after Colomb ) 332 Ocrea of Polygonum 333 Shoot of Potamogeton 334 Leaf of Desmodium canescens 211-213 213 213 217 219 , 220 221 ...
Pagina 6
... stem it encloses has become ripened and brown . The middle line of the sheath -- that is , the line of junction of the two leaves - becomes brown with age while the thicker portion is still green . In other plants , as in Stachys ( fig ...
... stem it encloses has become ripened and brown . The middle line of the sheath -- that is , the line of junction of the two leaves - becomes brown with age while the thicker portion is still green . In other plants , as in Stachys ( fig ...
Pagina 10
... stem dies back . The arrangement of the leaf in the bud influences , and sometimes determines , the form of the leaf . This consideration explains , I think , the curious fact that the first leaves , or cotyledons , often , indeed ...
... stem dies back . The arrangement of the leaf in the bud influences , and sometimes determines , the form of the leaf . This consideration explains , I think , the curious fact that the first leaves , or cotyledons , often , indeed ...
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Termeni și expresii frecvente
apex axil axillary buds axis base Beech Bentham blade brown Bud Protection bud-scales Candolle completely covered concave conduplicate connate stipules cotyledons developed edges exstipulate fifth folded foliaceous genera genus glabrous glands growing-point growth Guaiacum officinale hairs hairy Helianthemum Hornbeam Horse Chestnut Hypericum calycinum Illustrations inner instance lamina Lantana lateral buds Lathyrus Lathyrus Aphaca Lathyrus Nissolia leaf leaf-base leaf-blade leaf-stalk leaflets length less lobes lower membranous midrib Monocotyledons narrow node ocrea Opulus outer scales ovate pair of leaves pair of stipules pedestal persistent petiole Petteria PLANE Platanus plant Polygonum protect the bud protect the young Robinia scale fig scar sheath showing side slightly sometimes species St FIG st st stalk stem stipular stipules belonging stipules fig stipules St subulate tendrils terminal bud triangular Tulip Tree upper Viburnum Viburnum Lantana Viburnum Opulus Whitebeam winter winter-bud Wych Elm young bud young leaves Young Shoot younger
Pasaje populare
Pagina 191 - The acacia, however, bears hollow thorns, while each leaflet produces honey in a craterformed gland at the base, and a small, sweet, pearshaped body at the tip. In consequence, it is inhabited by myriads of a small ant, which nests in the hollow thorns, and thus finds meat, drink, and lodging all provided for it. These ants are continually roaming over the plant, and constitute a most efficient body-guard, not only driving off the leaf-cutting ants, but, in Belt's opinion, rendering the leaves less...
Pagina 233 - ... the presence, the uses, and the forms of stipules, and the structure of buds in some of our common trees, shrubs, and herbs. If I shall have induced any of my readers to look at them for themselves in the coming spring they will, I am sure, be amply rewarded. They will often be reminded of Tennyson's profound remark about Nature : So careless of the single life, So careful of the type she seems...
Pagina 68 - Plants, p. 286. -purpwrea, which naturally sink at night (the plants growing out of doors), and looked at them early on several successive mornings, after they had assumed their diurnal positions. The difference in the amount of dew on the pinned-open leaflets and on those which had gone to sleep was generally conspicuous, the latter being sometimes absolutely dry. whilst the leaflets which had been horizontal were coated with large beads of dew. This shows how much cooler the leaflets fully exposed...