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 ) . 207 Transverse Section of Stem of Galium Aparine ( after Colomb ) 208 FIG . 320 Ocrea of Plane PAGE 208 321-326 Transverse LIST OF ILLUSTRATIONS XV.
... Stem of Pansy ( after Colomb ) . 207 Transverse Section of Stem of Galium Aparine ( after Colomb ) 208 FIG . 320 Ocrea of Plane PAGE 208 321-326 Transverse 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 blade brown bud is protected bud-scales Candolle completely covered concave conduplicate connate stipules cotyledons developed edges Edition Exochorda exstipulate fifth folded foliaceous fourth genera genus glabrous glands growing-point growth Guaiacum officinale hairs hairy Helianthemum Hornbeam Horse Chestnut inner instance lamina Lantana lateral buds 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 shoot showing side slightly Smilax sometimes species St FIG St St stalk stem stipular stipules belonging stipules fig stipules St subulate tendrils terminal bud trees triangular Tulip Tree upper Viburnum Viburnum Lantana Viburnum Opulus Whitebeam winter winter-bud Wych Elm young bud young leaves younger
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Pagina 233 - So careless of the single life, So careful of the type she seems, and will be more and more struck with wonder and admiration at the variety and beauty of the provisions by which Nature preserves these tender and precious buds from the severity of winter, and prepares with loving care and rich profusion for the bright promise of spring and the glorious pageant of summer.
Pagina 194 - ASSISTANCE IN CLIMBING There are two ways in which stipules may assist in this respect, viz. (1) by being developed into tendrils, or (2) into more or less reversed spines. The case of the tendrils of Smilax is one which has occasioned much discussion, but I agree with Tyler (24) that the embryological, together with the anatomical, characters indicate that in Smilax the tendrils are true stipules, found in connection with the sheathing petiole. In Paliurvs australis (fig.
Pagina 4 - The figure also shows how admirably the peculiar form of the leaf is adapted to their mode of growth. In many other plants also the leaves, as they develop, successively protect the younger ones. A somewhat similar case is afforded by Uvaria (figs. 105, 106, p. 70) ; and also by common Rhubarb, FIG.