. 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. 3. Mesadenia tuberdsa ( Britton. Tuberous Indian Plantain. Fig. 4608. Cacalia tuberosa Nutt. Gen. 2: 138. 1818. Mesadenia planta-ginea Raf. New Fl. 4: 79. 1836. Senecio Nuttallii Sch. Bip. Flora 27: 499. 1845. M. tuberosa Britton in Britt. & Brown, 111. Fl. 3: 474. 1898. Glabrous and green throughout; stem angled, stout, 2°-6° high. Leaves thick, stro
. 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. 3. Mesadenia tuberdsa ( Britton. Tuberous Indian Plantain. Fig. 4608. Cacalia tuberosa Nutt. Gen. 2: 138. 1818. Mesadenia planta-ginea Raf. New Fl. 4: 79. 1836. Senecio Nuttallii Sch. Bip. Flora 27: 499. 1845. M. tuberosa Britton in Britt. & Brown, 111. Fl. 3: 474. 1898. Glabrous and green throughout; stem angled, stout, 2°-6° high. Leaves thick, strongly 5-9- nerved, the lower and basal ones oval, ovate, or ovate-lanceolate, obtuse or acutish, usually quite entire, but sometimes repand, long-peti- oled, narrowed at the base, or rarely subcordate, 4'-8' long, 1-3' wide; upper leaves ovate to oblong or cuneate-obovate, sessile or short-peti- oled, much smaller, sometimes toothed toward the apex; heads very numerous in a compound corymb, about 2" broad, mostly 5-flowered; involucre 3"-4" high, its bracts linear-oblong, obtuse or obtusish, scarious-margined. On wet prairies and in marshes, Ohio and west- ern Ontario to Minnesota, Kansas, Alabama, Louisi- ana and Texas. June-Aug. 101. SYNOSMA Raf.; Loud. Gard. Mag. 8: 247. 1832. A perennial leafy herb, glabrous or very nearly so, with triangular or hastate, alternate leaves, the lower petioled, the upper sessile, and several or numerous, corymbose or corym- bose-paniculate, discoid heads of white or pinkish flowers. Involucre nearly cylindric, its principal bracts 12-15, linear, acute, usually with some subulate outer ones. Receptacle flat, naked. Flowers perfect; corolla 5-lobed. Style-branches not appendaged. Pappus of very numerous white soft capillary bristles. [Greek, perhaps signifying a fragrant composite.] A monotypic genus of eastern North Please note that these images are extracted from scanned page images that may have been digitally enhanc
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