. A spring flora for high schools. Botany. COMPOSITAE (COMPOSITE FAMILY) single large heads; leaves nearly entire, the upper ob- long or lanceolate, sessile; the lower spatulate; disk dark purple or brown. Dry soil. June to September. COREOPSIS Herbs, generally with opposite leaves, and many- flowered heads with yel- low or parti-colored rays. Involucre double, each series of about 8 bracts, the outer leaf-like and spreading, the inner broader and appressed. Receptacle flat. Achenes flat, often winged, 2- toothed or 2-awned. C. lanceolata, Tickseed. Smooth or hairy, tufted, branched only at ba
. A spring flora for high schools. Botany. COMPOSITAE (COMPOSITE FAMILY) single large heads; leaves nearly entire, the upper ob- long or lanceolate, sessile; the lower spatulate; disk dark purple or brown. Dry soil. June to September. COREOPSIS Herbs, generally with opposite leaves, and many- flowered heads with yel- low or parti-colored rays. Involucre double, each series of about 8 bracts, the outer leaf-like and spreading, the inner broader and appressed. Receptacle flat. Achenes flat, often winged, 2- toothed or 2-awned. C. lanceolata, Tickseed. Smooth or hairy, tufted, branched only at base; leaves all entire; lanceolate; the lowest ob- lanceolate or spatulate; achenes with broad, thin, spreading wings. Rich soil. May to July. ACHILLEA Herbs, with small corymbose heads. Heads many-flowered with a few rays. Bracts of involucre imbricated, with scarious margins. Achenes oblong, flat- tened, margined; pappus none. A. Millefolium, Yarrow. Stem simple or forked above, woolly or nearly smooth; stem leaves numerous, smooth or somewhat pubescent; cormybs very compound, flat- topped; bracts of involucre pale; rays S-io, white to crimson and Rudbeckia hirta. Black-eyed 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 Cowles, Henry Chandler, 1869-1939; Coulter, John G. (John Gaylord), b. 1876. joint author. New York, Cincinnati [etc. ] American Book Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1915
