An illustrated flora of the 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 ed2illustratedflo02brit Year: 1913 ;nls 1. 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. ,2. Heuchera. Petals pinnately cleft or parted. ij. Milella. Flowers solitary and axillary to leaf-like bracts or
An illustrated flora of the 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 ed2illustratedflo02brit Year: 1913 ;nls 1. 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. ,2. Heuchera. Petals pinnately cleft or parted. ij. Milella. Flowers solitary and axillary to leaf-like bracts or 2-4 together and each subtended by a leaf-like bract. 14. Chrysosplenium. 1. 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 campanulate, 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-celIed, deeply 2-3-Iobed; styles 2-3; stigmas obtuse; ovules ^. Capsule 2-3-Iobed, 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 Xorth .America, eastern .\sia and the Himalayas. Besides the following another species occurs in the southern Alleghanies. Type species: Astilbe rivu- Idris D. Don. 1. Astilbe bitemata (A'ent.) Britton. False Goat's Beard. Astilbe. Fig. Tiarella bilernata Vent. Jard. Malm. pi. i4. 1803. Spiraea Aruncus var. hcnnaphrodila Michx. Fl. Eor. Am. i: 294. 1803. Astilbe decandra D. Don, Prodr. Fl. Nepal. 211. 1825. Astilbe biternata Britton, Bull. Torr. Oub 20: 475. 1893. Erect, 3°-6° high, more or less pubescent. Leaves petioled, 2-3- temately compound, often 2° broad; leaflets thin, stalked, ovate, cordate, truncate or rounded at the base, the lateral ones usual
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