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 Genus SAXIFRAGE FAMILY. throat of the calyx. Stamens g, inserted with the petals. Ovary i-celled; styles 2, slender. Ovules ^. Capsule 2-valved, 2-beaked. Seeds minutely hispid or muricate. [Named for Johann Heinrich von Heuchcr, 1677-1747, a German botanist.] About 70 species, natives of North America and Mexico. T
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 Genus SAXIFRAGE FAMILY. throat of the calyx. Stamens g, inserted with the petals. Ovary i-celled; styles 2, slender. Ovules ^. Capsule 2-valved, 2-beaked. Seeds minutely hispid or muricate. [Named for Johann Heinrich von Heuchcr, 1677-1747, a German botanist.] About 70 species, natives of North America and Mexico. Type species: Heuchera americana L. Flowers regular or nearly so. Petals with long very slender claws and narrow blades, much exceeding the calyx. Leaves, at least the larger ones, low rounded lobes. Petioles villous ; calyx-lobes ovate, much shorter than the hypanthium during anthesis. I. H. parviflora. Petioles puberulent; calyx-lobes broadly ovate, as long as the hypathium during anthesis or nearly so. 2. //. pubcrula. Leaves, at least the larger ones, with prominent angular lobes. Leaves deeply lobed, the terminal lobe longer than wide. 3. Leaves not deeply lobed, the terminal lobe broad and short. 4. H. macrorhisa. Petals with short claws and broad blades, shorter than the calyx or slightly longer. Petals as long as the calyx or shorter. 5. H. americana. Petals decidedly longer than the calyx. 6. H. Curlisii. Flowers very irregular. Stamens long-exserted. 7. H. hirsuticaulis. Stamens slightly exserted or included. Flowering stem leafless; flowers gibbous below near the base. Panicle narrow, strict; stamens exserted. 8. Panicle wide, lax ; stamens included. 9. H. longiflora. Flowering stem leafy; flowers not gibbous. 10. I. Heuchera parviflora Bartl. Rugel's Heuchera. Fig. 2173. Heuchera parviflora Bartl. Ind. Sem. Hort. Getting. 1838.—Linnaea 13: Litt. 96. 1839. H. Rugelii Shuttlw.; Kunze, Linnaea 20 r 43. 1847. Stems slender, 6-24' lon
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