. 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 . ONAGRACEAE. Vol. II. 2. Ludwigiantha brevipes Long, n. sp. Short-stalked Ludwigiantha. Fig. 3015. Similar to the preceding species, creeping, glabrous. Leaves oblong-oblanceolate, acutish at the apex, narrowed to the sessile or nearly sessile base; flowers about 4' broad, on slender pedun- cles shorter than the leaves; calyx-lobes lanceolate to ovate- lanceolate; filaments a
. 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 . ONAGRACEAE. Vol. II. 2. Ludwigiantha brevipes Long, n. sp. Short-stalked Ludwigiantha. Fig. 3015. Similar to the preceding species, creeping, glabrous. Leaves oblong-oblanceolate, acutish at the apex, narrowed to the sessile or nearly sessile base; flowers about 4' broad, on slender pedun- cles shorter than the leaves; calyx-lobes lanceolate to ovate- lanceolate; filaments about i" long; filaments and stout style about i" long; capsule a little longer than the calyx-lobes. Moist sand. Long Beach Island, Ocean County, Ne Aug. 3. LUDWIGIA L. Sp. PI. 118. Jersey. July- 1753- Perennial or annual herbs, with alternate usually entire leaves, and axillary or terminal, yellow or greenish flowers. Stems erect as ascending, sometimes angled, or winged. Calyx-tube cylindric, obpyramidal or top-shaped, not prolonged beyond the ovary, 3-5-lobed (usually 4-lobed), the lobes generally persistent. Petals usually 4, sometimes none, inserted under the margin of the disk. Stamens usually 4, inserted with the petals; filaments short. Ovary 4-s-celled; stigma capitate or 4-lobed. Capsule terete, ribbed or winged, crowned with the calyx-lobes, many-seeded, septicidally or irregularly de- hiscent, or opening by an apical pore. [Named in honor of C. G. Ludwig, 1709-1773, Pro- fessor of Botany at Leipsic] About 25 species, natives of warm and temperate regions, most abundant in North America. Besides the following about 12 others occur in the southern and southwestern states. Type species: Ludzvigia aiternifolia L. Flowers inconspicuous; petals none, or small, yellowish or greenish ; valves of the capsule separat- ing from the terminal disk. Capsules subglobose or top-shaped. Bractlets at the base of the calyx minute, or none ; capsule subglobose, finely pubesce
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
