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already anther apex appearance applied arises arranged attached axis bark base bearing becomes body bracts branches buds bundles called calyx carpels cavity cells coat color common commonly composed compound connected consists contain corolla corresponds cotyledons dehiscence described developed direction distinct divided divisions elongated embryo entirely epidermis external fertilization flowers fluid formation former frequently fruit green grow growth hairs hence inflorescence inner kind latter layer leaf leaves less manner margins mass Monocotyledonous mycelium nature nucleus observed occur organs ovary ovule parenchyma petals placenta plants pollen portion position present produced protoplasm reproduction roots rounded seeds seen sepals separate showing side similar simple single sometimes species spiral spores stalk stamens stem stigma structure style surface surrounded sutures takes place termed terminal tion tissue true ultimately upper usually various vary vessels walls whole wood
Página ii - Society, etc.; and JB HOLDER, MD, Curator of Zoology of American Museum of Natural History, Central Park, New York. 12mo, 385 pages. A COMPEND OF GEOLOGY. By JOSEPH LE CONTE, Professor of Geology and Natural History in the University of California; author of "Elements of Geology,
Página 223 - ... bundles ; or the increased size of the coming leaf-bud will snap them ; or if these causes are not in operation, a gust of wind, a heavy shower, or even the simple weight of the lamina, will be enough to disrupt the small connexions, and send the suicidal member to its grave. " Such is the history of the fall of the leaf.
Página vi - Descriptive Botany," by Eliza A. Youmans. Designed to give an elementary account of Structural and Physiological Botany, or of the inner and minute mechanism and activities of plants. It treats of what the parts of a plant are built up, and what functions they perform In its history as a living being.