. College botany; structure, physiology and economics of plants. Botany. 346 COLLEGE BOTANY This family is represented by tke witch-hazel {Hamamelis vir- giniana) and the sweet gum tree (Liquidambar styraciflua). Rosacea. (Rose Faxoily).—Herbs, shrubs and trees; leaves alternate and stipulate; inflorescence' terminal, usually a corymb, cyme or umbel; flower perfect and regular; sepals five (some- timejS three to five or eight), united at the base; petals same num- ber as sepals (sometimes absent) ; stamens numerous, inserted with petals on disk of calyx tube; pistil apocarpous with one to. FiQ
. College botany; structure, physiology and economics of plants. Botany. 346 COLLEGE BOTANY This family is represented by tke witch-hazel {Hamamelis vir- giniana) and the sweet gum tree (Liquidambar styraciflua). Rosacea. (Rose Faxoily).—Herbs, shrubs and trees; leaves alternate and stipulate; inflorescence' terminal, usually a corymb, cyme or umbel; flower perfect and regular; sepals five (some- timejS three to five or eight), united at the base; petals same num- ber as sepals (sometimes absent) ; stamens numerous, inserted with petals on disk of calyx tube; pistil apocarpous with one to. FiQ. 183.—Gooseberry. many carpels, distinct or united with the calyx tube; fruit a pome, drupe, follicle or achene; a large family eimtaining many of our most important fruits and some of our best ornamentals. Owing to its diverse character we will divide it into sub-families: Sub-Family—Rosece (Roses).—Ovaries enclosed in the calyx tube, pistils of several carpels, each developing into hard, long achenes within the globose or urn-shaped, fleshy calyx-tube. This includes the genus Rosa,, which contains our well-known roses that are used so extensively for ornamental purposes. The growing of roses is a very important Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cook, Melville Thurston, 1869-1952. Philadelphia and London, J. B. Lippincott Company
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1920
