. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. § 2. ACET6sA [Tourn.] DC. (Sorrel.) Flowers dioecious, small, in a terminal naked panicle; herbage sour; somt leaves arrow- or halberd-shaped; smooth perennials, spreading by running rootstocks, flowering in spring. 15. R. Acet6sa L. (Garden S.) Erect, .^-9 dm. high; leaves oblong or broadly lanceolate, arrow-shaped; valves rounded at the apex, 4 mm. broad. — Lab. to Pa., and westw. ; frequent near Quebec, compara- tively local southw. (Nat. fro
. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. § 2. ACET6sA [Tourn.] DC. (Sorrel.) Flowers dioecious, small, in a terminal naked panicle; herbage sour; somt leaves arrow- or halberd-shaped; smooth perennials, spreading by running rootstocks, flowering in spring. 15. R. Acet6sa L. (Garden S.) Erect, .^-9 dm. high; leaves oblong or broadly lanceolate, arrow-shaped; valves rounded at the apex, 4 mm. broad. — Lab. to Pa., and westw. ; frequent near Quebec, compara- tively local southw. (Nat. from Eu.) Fig. 703. 16. R. hastdtulus Baldw. Stem simple, 3-6 dm. high ; leaves linear or lanceolate, some of them hastate with divaricate, basal lobes ; valves ovate, mm. broad. — Sandy soil, near the coast, e. Mass. to Fla. and Tex. ; inland in Miss, basin to 111., Mo., and Kan. Fig. 704. 17. H. AcETOSELLA L. (FiELD or Sheep S.) Low (1-3 dm. high); leaves narrow- 704. E. hastatuluB. lanceolate or linear, halberd-form, at least Leaf x %. the lowermost, the narrow lobes entire, widely spreading ; Fruiting calyces x 2. pedicels jointed at the summit; sepals scarcely enlarged in fruit, exceeded by the naked achene. — A common weed. (Nat. from Eu.) Fig. 705. 4. POLYGONUM [Tourn.] L. Knotweed Calyx 4-6(mostly 5)-parted; the divisions often petal- like, all erect in fruit, withering or persistent. Stamens 3-9. Styles or stigmas 2 or 3; achene accordingly lentic- ular or 3-angular. Embryo placed in a groove on the outside of the albumen and curved halfway around it; the radicle and usually the cotyledons slender. Pedicels jointed. — Ours all herbaceous, W'th fibrous roots (except in P. viviparum), flowering through late summer and early autumn. (Name composed of iroXi)-, many, and ybm, knee, from the numerous joints.) § 1. AVICULArIA Meisn. Flowers in axillary fascicles or spicate -with folia- ceous bracts ; leaves and bracts jointed upon a very short petiole adnate to the
Size: 1825px × 1369px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisher, booksubjectbotany
