On Buds and StipulesK. Paul, Trench, Trübner & Company, Limited, 1899 - 239 pagini |
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Pagina 6
... 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 . 6 ) , the leaves do not fit so closely , but the protection is. 6 BUDS AND STIPULES.
... 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 . 6 ) , the leaves do not fit so closely , but the protection is. 6 BUDS AND STIPULES.
Pagina 21
... portions which seem to be of general interest . FIG . 23. - SHOOT OF HELIANTHEMUM ŒELANDICUM . Slightly enlarged . Fig . 22 represents a shoot of Helianthemum vulgare ( the Common Rock Rose ) , with stipules ; Fig . 23 , one of ...
... portions which seem to be of general interest . FIG . 23. - SHOOT OF HELIANTHEMUM ŒELANDICUM . Slightly enlarged . Fig . 22 represents a shoot of Helianthemum vulgare ( the Common Rock Rose ) , with stipules ; Fig . 23 , one of ...
Pagina 29
... Portion of shoot in winter , x 2 . FIG . 36. - Ditto in spring , × 2 . Sc , scar of fallen leaf ; St , stipules completely covering the bud in fig . 35 , in fig . 36 pushed aside by the developing bud ( b ) . FIG . 37. - POPULUS NIGRA ...
... Portion of shoot in winter , x 2 . FIG . 36. - Ditto in spring , × 2 . Sc , scar of fallen leaf ; St , stipules completely covering the bud in fig . 35 , in fig . 36 pushed aside by the developing bud ( b ) . FIG . 37. - POPULUS NIGRA ...
Pagina 30
... PORTION OF SHOOT OF ASTRAGALUS CHINENSIS , showing stipules ( St ) connate at the base . Nat.size . FIG . 39. - Front view . FIG . 40. - Side view . Two leaflets of the compound leaf are showu . Where stipules are present the leaf has ...
... PORTION OF SHOOT OF ASTRAGALUS CHINENSIS , showing stipules ( St ) connate at the base . Nat.size . FIG . 39. - Front view . FIG . 40. - Side view . Two leaflets of the compound leaf are showu . Where stipules are present the leaf has ...
Pagina 38
... portion of leaf ; sh , sheath formed by the dilated and connate bases of the petioles ; ab , ab , axillary buds . The Rosacea generally have stipules , but in Exo- chorda some species are exstipulate . In Exochorda Alberti ( figs . 53 ...
... portion of leaf ; sh , sheath formed by the dilated and connate bases of the petioles ; ab , ab , axillary buds . The Rosacea generally have stipules , but in Exo- chorda some species are exstipulate . In Exochorda Alberti ( figs . 53 ...
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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.