. 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. SAXIFRAGE FAMILY. 215 Placentae almost basal; carpels very unequal. 11, Tiarella. Placentae parietal; carpels equal or nearly so. ' Flowers in elongated racemes or panicles. Petals entire or erose. Petals pinnately cleft or parted. . ., „. Flowers^ solitary and axillary to leaf-like bracts or 2-4 together and ea'ch subtended by a , .. ^^^ Chrysospleniu
. 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. SAXIFRAGE FAMILY. 215 Placentae almost basal; carpels very unequal. 11, Tiarella. Placentae parietal; carpels equal or nearly so. ' Flowers in elongated racemes or panicles. Petals entire or erose. Petals pinnately cleft or parted. . ., „. Flowers^ solitary and axillary to leaf-like bracts or 2-4 together and ea'ch subtended by a , .. ^^^ Chrysospleniuui, 12. Heuchera. 13. Mitella. leaf-like bract. I. ASTILBE Hamilt.; D. Don. Prodr. Fl. Nepal. 210. 1825. Erect perennial herbs, with large 2-3-ternate leaves, and small spicate polygamous flowers in terminal panicles. Calyx canipanulate, 4-5-lobed. Petals 4-5. (in our species), linear- spatulate, inserted at the base of the calyx. Stamens 8-10, all perfect, inserted with the petals; filaments elongated. Ovary superior or nearly so, 2-3-celled, deeply 2-3-lobed; styles 2-3; stigmas obtuse; ovules =0. Capsule 2-3-lobed, separating into 2-3 follicle-like carpels, each usually few-seeded. Seeds small, the testa loose, tapering at each end. [Greek, without brightness.] About 7 species, natives of eastern North America, eastern Asia and the Himalayas. Besides the following another species occurs in the southern AUeghanies. Type species: Astilbe rivu- laris D. Don. 1. Astilbe biternata (Vent.) Britton. False Goat's Beard. Astilbe. Fig. 2151. Tiarella biternata Vent. Jard. Malm. pi. 54- 1803. Spiraea Arnncus var. hermaphrodita Michx. Fl. Bor. Am. i: 294. 1803. Astilbe decandra D. Don, Prodr. Fl. Nepal. 211. 1825. Astilbe biternata Britton, Bvill. Torr. Club 20 : 475. 1893. Erect, 3°-6° high, more or less pubescent. Leaves petioled, 2-3- terna'tely compound, often 2° broad; leaflets thin, stalked, ovate, cordate, truncate or rounded at the base, the lateral ones usually oblique, ac
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
