. 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 102d meridian. Botany; Botany. Genus i. MADDER FAMILY. 25i H. coerulea. H. serpyllifolia. H. patens. H. minima. or less concave, not angled. Seed-coat reticulate or roughened; endosperm horny; embryo club-shaped. [Named in honor of Dr. William Houston, botanist and collector in South America, died 1733.] About 25 species, natives of North America and Mexico. Type species : Houstonia coerulea
. 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 102d meridian. Botany; Botany. Genus i. MADDER FAMILY. 25i H. coerulea. H. serpyllifolia. H. patens. H. minima. or less concave, not angled. Seed-coat reticulate or roughened; endosperm horny; embryo club-shaped. [Named in honor of Dr. William Houston, botanist and collector in South America, died 1733.] About 25 species, natives of North America and Mexico. Type species : Houstonia coerulea L. * Plants i'-7' high; peduncles 1-flowered. t Peduncles filiform, i'-2}4' long. Erect; leaves obovate or spatulate, narrowed into petioles. 1. Diffuse or spreading; leaves nearly orbicular. 2. ft Peduncles 3"-i8" long, stouter. Calyx-lobes narrow, about equalling the capsule. 3. Calyx-lobes broad, much exceeding the capsule. 4. ** Plants 4-18' high; flowers cymose. Calyx-lobes lanceolate-subulate, 2 to 3 times as long as the capsule. 5. H. lanceolata. Calyx-lobes linear-subulate, scarcely longer than the capsule. Leaves broad, ovate, or ovate-lanceolate. 6. H. purpurea. Leaves oblong or spatulate, ciliate. 7. H. ciliolata. Leaves linear-lanceolate or oblanceolate, not ciliate. 8. H. longifolia. Leaves filiform or narrowly linear. Flowers loosely cymose on filiform pedicels; leaves not fascicled. 9. H. tenuifolia. Flowers densely cymose on very short pedicels; leaves usually fascicled. 10. H. angustifolia. i. Houstonia coerulea L. Bluets. Innocence. Eyebright. Fig. 3912. Houstonia coerulea L. Sp. PI. 105. 1753. Hedyotis coerulea Hook. Fl. Bor. Am. 1: 286. 1833. Oldenlandia coerulea A. Gray, Man. Ed. 2, 174. 1856. Erect, 3'-7' high, glabrous, or nearly so, perennial by slender rootstocks and form- ing dense tufts. Lower and basal leaves spatulate or oblanceolate, about 6" long, sometimes hirsute or ciliate, narrowed into a petiole, the upper oblong, sessile; flo
Size: 1462px × 1710px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
