. 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. 9. Heuchera longiflora Rydb. Long- flowered Heuchera. Fig. 2181. Heuchera longiflora Rydb.; Britton, Man. 482. 1901. Stems l2''-3° high, glabrous or hirsutulous above, leafless. Leaves long-petioled, orbicular- reniform to orbicular-ovate, 2'-4' wide, shal- lowly lobed and with very broad teeth; panicle lax, wide, with slender branches; flowering calyx 4"-
. 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. 9. Heuchera longiflora Rydb. Long- flowered Heuchera. Fig. 2181. Heuchera longiflora Rydb.; Britton, Man. 482. 1901. Stems l2''-3° high, glabrous or hirsutulous above, leafless. Leaves long-petioled, orbicular- reniform to orbicular-ovate, 2'-4' wide, shal- lowly lobed and with very broad teeth; panicle lax, wide, with slender branches; flowering calyx 4"-s" long, oblique, the lobes unequal; petals rhombic-spatulate, equalling the calyx- lobes ; stamens included. On hillsides, Kentucky to Alabama. May-June. 10. Heuchera pubescens Pursh. Downy Heuchera. Fig. 2182. H. pubescens Pursh, Fl. Am. Sept. 187. 1814. Stems rather stout, l°-3° high, densely glandular-pubescent, at least above, usually bearing i or 2 small leaves. Basal leaves slender-petioled, broadly ovate or orbicular, cordate, 2'-4' wide, 5-7-lobed, the lobes rounded or acute, crenate or dentate; panicle loose; flowering calyx oblong-campanulate, somewhat oblique, 3"-4" long, minutely glan- dular, its lobes usually unequal; petals broadly spatulate, purplish, slightly exceeding the calyx-lobes; stamens scarcely or slightly ex- serted. In rich woods, mountains of Pennsylvania to Kentucky, Missouri and North Carolina. As- cends to 4000 ft. in North Carolina. 13. MITELLA [Tourn.] L. Sp. PI. 406. 1753. Erect perennial herbs, with long-petioled ovate or orbicular basal leaves, naked or 2-leaved scapes, and small white or greenish flowers in elongated spiciform racemes. Calyx- tube campanulate or hemispheric, adnate to the base of the ovary, its limb 5-lobed. Petals 5, 3-cleft or pinnatifid. Stamens 10 (sometimes S) ; filaments short. Ovary globose, I-celled; styles 2, short; ovules °°. Capsule i-celled, 2-valved at the apex, many-seeded. Seeds
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
