. 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 8. SAXIFRAGE FAMILY. 8. CHONDROSEA Haw. Saxifr. Enum. lo. 1821. Perennial herbs, with densely leafy short caudices and offsets and sparingly leafy flower-stems, and alternate serrate leaves with each tooth white-encrusted, the flowers in terminal compound cymes. Calyx-lobes S, erect. Corolla white or sometimes colored, regular, the petals broad, clawless.


. 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 8. SAXIFRAGE FAMILY. 8. CHONDROSEA Haw. Saxifr. Enum. lo. 1821. Perennial herbs, with densely leafy short caudices and offsets and sparingly leafy flower-stems, and alternate serrate leaves with each tooth white-encrusted, the flowers in terminal compound cymes. Calyx-lobes S, erect. Corolla white or sometimes colored, regular, the petals broad, clawless. Stamens 10; filaments lanceolate to lanceolate-subulate. Ovary about one-half inferior, the carpels united to above the middle. Follicles united up to the more or less spreading tips. [Greek, referring to the texture of the leaves.] About 9 species, most abundant in the mountains of middle Europe. Type species : Chondrosea pyramidalis Haw. I. Chondrosea Aizoon (Jacq.) Haw, Livelong Saxifrage. Fig. 2169. Aizoon Jacq. FI. Austr. 5: 18. pi. 438. 1778. Chondrosea Aicoon Haw. Saxifr. Enum. 11. 1821. Leaves clustered in a dense rosette at the base of the bracted flowering stem; plant spreading by offsets, so that several are often joined together. Leaves 4"-i2" long, spatulate, thick, obtuse and rounded at the apex, the margins serrulate with sharp hard white teeth; scape erect, viscid-pubescent, 4'-io' high; flowers several or numerous, corymbose, yellowish, about 3" broad; calyx- lobes ovate-oblong, obtuse, viscid, shorter than the obo- vate, often spotted petals; capsule tipped by the divergent styles, its base adnate to the calyx. On dry rocks, Mt. Mansfield, Vermont; Quebec to Labra- dor, west to Lake Superior and Manitoba. Also in alpine and arctic Europe. Summer. 9. THEROFON Raf. New Fl. N. A. 4: 66. 1836. [BoYKiNiANutt. Journ. Acad. Phila. 7: 113. 1834. NotRaf.] Glandular-pubescent perennial herbs, with alternate peti- oled orbicular or reniform lea


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913