. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . 15. MEGAPTERIUM Spach, Hist. Veg. 4: 363. 1835. Low perennial herbs with stout sparingly branched stems. Leaves numerous, alternate, narrow, entire or slightly toothed. Flowers perfect, few, but large and showy, axillary, yellow. Calyx-tube much elongated, dilated toward the throat; calyx-segment's narrow, the tips free in the bud. Petals 4, spreading. Stamens 8, the alterna
. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . 15. MEGAPTERIUM Spach, Hist. Veg. 4: 363. 1835. Low perennial herbs with stout sparingly branched stems. Leaves numerous, alternate, narrow, entire or slightly toothed. Flowers perfect, few, but large and showy, axillary, yellow. Calyx-tube much elongated, dilated toward the throat; calyx-segment's narrow, the tips free in the bud. Petals 4, spreading. Stamens 8, the alternate ones longer; filaments filiform; anthers linear. Ovary 4-celled, 4-angled or 4-winged; united styles filiform; stigma 4-cleft; ovules few, sessile in rows. Capsules broadly 4-winged. Seeds few, crested. [Greek, broad-winged.] .\bout 4 species, in North America and Mexico. Type species: Megapteriuin Nuttallianum Spach. Flowers 3-6' broad ; capsules suborbicular, 2'-2'4' long. i. M. missouriense. Flowers i'-2' broad ; capsules oblong, 9"-i4" long. Densely finely canescent. 2. M. Fremontii. Glabrous. 3. M. oklahomense.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
