On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 10
... lateral bud or buds which develop , but in some cases , as in Viburnum Opulus ( the Guelder Rose ) , Gymnocladus , & c . , these also perish , and as a rule only the lower ones grow , and the upper part of the stem dies back . The ...
... lateral bud or buds which develop , but in some cases , as in Viburnum Opulus ( the Guelder Rose ) , Gymnocladus , & c . , these also perish , and as a rule only the lower ones grow , and the upper part of the stem dies back . The ...
Pagina 25
... lateral bud . Stipules are sometimes situated on the leaf - base , sometimes at the foot of the leaf - base , sometimes on the stem just below the leaf - base . In the Dwarf Elder ( Sambucus Ebulus ) they are st . comparatively large ...
... lateral bud . Stipules are sometimes situated on the leaf - base , sometimes at the foot of the leaf - base , sometimes on the stem just below the leaf - base . In the Dwarf Elder ( Sambucus Ebulus ) they are st . comparatively large ...
Pagina 38
... , however , is concave and am- plexicaul , and the winter - bud is covered with a number of broadly triangular brown scales , some of which show indications of being tridentate at the apex . These lateral 38 BUDS AND STIPULES.
... , however , is concave and am- plexicaul , and the winter - bud is covered with a number of broadly triangular brown scales , some of which show indications of being tridentate at the apex . These lateral 38 BUDS AND STIPULES.
Pagina 39
Sir John Lubbock. indications of being tridentate at the apex . These lateral teeth are probably evidence of the former exist- 51 St 53 US U'S W 52 54 LEAVES OF EXOCHORDA . FIG . 51. - Leaf of Exochorda grandiflora , nat . size . FIG ...
Sir John Lubbock. indications of being tridentate at the apex . These lateral teeth are probably evidence of the former exist- 51 St 53 US U'S W 52 54 LEAVES OF EXOCHORDA . FIG . 51. - Leaf of Exochorda grandiflora , nat . size . FIG ...
Pagina 44
... lateral veins . The LL remaining veins , then , and the mem- brane connecting them , will gradually be reduced , and ultimately disappear . LUS , × 4 . L , L , lateral lobes of next younger pair of leaves ; St , sti- pule . In V. Opulus ...
... lateral veins . The LL remaining veins , then , and the mem- brane connecting them , will gradually be reduced , and ultimately disappear . LUS , × 4 . L , L , lateral lobes of next younger pair of leaves ; St , sti- pule . In V. Opulus ...
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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.