Ce spun oamenii - Scrieți o recenzie
Nu am găsit nicio recenzie în locurile obișnuite.
Alte ediții - Afișați-le pe toate
afforded already apex appear arrangement axillary buds axis base become Beech belonging blade branches brown Chestnut closely common completely connate considerable consist corresponding covered developed early edges Edition enclosed entire expanded face fact fall fifth figure folded four fourth function genera gradually growing growth hairs half Illustrations inner instance interesting larger lateral Lathyrus leaf leaf-blade leaf-stalk leaflets leaves length less lobes longer lower membranous narrow naturally nerves node occur opposite organs outer pair of stipules pedestal persistent petiole Plane plant portion position present protect protect the bud regarded remain represent rest Rose round rule scales seems separate serve sheath shoot short showing shown side similar sixth slightly smaller sometimes species spring stage stem subulate tendrils terminal bud third trees true upper Viburnum whole winter winter-bud young leaves younger
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.