On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina xv
... Outer Scales of Bud of Wych Elm . 148 149 151 153 154 , 155 276-285 Bud , Scales and Leaf of Picea excelsa 157 286 287-291 Leaves of Hawthorn 162 Leaves of Red Currant 164 , 165 292 Leaves of Nuttallia cerasiformis 169 293 Stipules of ...
... Outer Scales of Bud of Wych Elm . 148 149 151 153 154 , 155 276-285 Bud , Scales and Leaf of Picea excelsa 157 286 287-291 Leaves of Hawthorn 162 Leaves of Red Currant 164 , 165 292 Leaves of Nuttallia cerasiformis 169 293 Stipules of ...
Pagina 2
... outer ( lower ) leaf , which had only a single covering , has been killed by frost , while the suc- ceeding one , which had two wraps , has escaped . It is remarkable that some nearly allied genera , and even in certain cases species of ...
... outer ( lower ) leaf , which had only a single covering , has been killed by frost , while the suc- ceeding one , which had two wraps , has escaped . It is remarkable that some nearly allied genera , and even in certain cases species of ...
Pagina 3
... outer envelopes may be modified for the purpose . In some plants , especially those which are quick- B FIG . 2. - BEGONIA . A , shoot seen from above . B , shoot seen from one side . Reduced . growing or natives of tropical countries ...
... outer envelopes may be modified for the purpose . In some plants , especially those which are quick- B FIG . 2. - BEGONIA . A , shoot seen from above . B , shoot seen from one side . Reduced . growing or natives of tropical countries ...
Pagina 7
... outer envelopes of the bud are suf- FIG . 8 . FIG . 9 . UNOPENED BUDS OF NORWAY MAPLE . Enlarged . FIG . 8 shows a leaf - bud . FIG . 9 is also a flower - bud . ficiently developed and strengthened to protect the young and delicate ...
... outer envelopes of the bud are suf- FIG . 8 . FIG . 9 . UNOPENED BUDS OF NORWAY MAPLE . Enlarged . FIG . 8 shows a leaf - bud . FIG . 9 is also a flower - bud . ficiently developed and strengthened to protect the young and delicate ...
Pagina 16
... lie straight in the bud ; those of the Oak have not room to do so , and are , consequently , bent somewhat like a bow along the midrib . Now , if the outer edge were straight , the result would be that when the. 16 BUDS AND STIPULES.
... lie straight in the bud ; those of the Oak have not room to do so , and are , consequently , bent somewhat like a bow along the midrib . Now , if the outer edge were straight , the result would be that when the. 16 BUDS AND STIPULES.
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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.