. A spring flora for high schools. Botany. ACERACEAE (MAPLE FAMILY) 91 S. trifolia. Bladder Nut. Shrub 3 m; high; branches greenish, striped; leaflets 3, ovate, pointed. Moist thickets. May. ACERACEAE (Maple Family) Trees and shrubs icith opposite, simple, usually palmately lobed leaves. Small apetalous flowers and a 2-celled, 2-lobed Staphylea trifolia^ Bladder nut. ACER Calyx colored, mostly 5-lobed. Petals either none, or as many as the sepals. Stamens 3 to 12. Ovary 2-celled. The back of each carpel develops a wing, converting the fruit into 2 i-seeded samaras, or key-fruits. A. sa
. A spring flora for high schools. Botany. ACERACEAE (MAPLE FAMILY) 91 S. trifolia. Bladder Nut. Shrub 3 m; high; branches greenish, striped; leaflets 3, ovate, pointed. Moist thickets. May. ACERACEAE (Maple Family) Trees and shrubs icith opposite, simple, usually palmately lobed leaves. Small apetalous flowers and a 2-celled, 2-lobed Staphylea trifolia^ Bladder nut. ACER Calyx colored, mostly 5-lobed. Petals either none, or as many as the sepals. Stamens 3 to 12. Ovary 2-celled. The back of each carpel develops a wing, converting the fruit into 2 i-seeded samaras, or key-fruits. A. saccharum. Sugar Maple. A large tree; leaves 3 to s-lobed with pointed sinuate-toothed lobes; flowers in nearly sessile, flat- topped clusters, greenish-yellow, appearing with the leaves, drooping on slender, hairy pedicels; petals none; wings of fruit broad. Rich woods. April, May. A. saccharinum, Silver Maple. A handsome tree; leaves very deeply S-lobed, with the sinuses rather acute, silvery-white beneath, the divisions narrow, cut-lobed and toothed; flowers in umbels, much preceding the leaves; petals none; fruit woolly when young. River banks. March, April. A. rubrum, Red Maple. A medium- sized tree with reddish twigs; leaves exceed- ingly variable in shape and broadly ovate or suborbicular, truncate or cordate at base, woolly when young, whitened beneath; the acuminate lobes irregu- larly serrate; petals linear-oblong; fruit smooth on long drooping pedicels. Wet woods. 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
