. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. CENTAUREA CEPHALANTHUS 275. 408. Centaurea Ameri cana (X M). 11. monta,na, Linn. Mountain Bluet. Perennial : sts. low, stoloniterous, unbranched, 12-16 or rarely 20 in. high : Ivs. deeurrent, the young ones silvei-y white, oval-lance-shaped : involucre of 4 or 5 rows of scales, black-ciliate along the margins;
. Cyclopedia of American horticulture, comprising suggestions for cultivation of horticultural plants, descriptions of the species of fruits, vegetables, flowers, and ornamental plants sold in the United States and Canada, together with geographical and biographical sketches. Gardening. CENTAUREA CEPHALANTHUS 275. 408. Centaurea Ameri cana (X M). 11. monta,na, Linn. Mountain Bluet. Perennial : sts. low, stoloniterous, unbranched, 12-16 or rarely 20 in. high : Ivs. deeurrent, the young ones silvei-y white, oval-lance-shaped : involucre of 4 or 5 rows of scales, black-ciliate along the margins; fls. blue, the marginal ones 1 in. long, disc-fls. very short, becoming purple. Europe. B. M. 77. Var. dlba, Hort. Pis. white. Var. rdsea, Hort. Fls. rose-colored. Var. citrina, DC. (var. sulphiirea, Hort.). Disc-fls. brown, rays yellow. Ar- menia. 1175. CO. stems erect, simple or branched: 12. dealb^ta, Willd. Perennial : sts. sub-erect, 8-24 in. high : Ivs. white-villous beneath, glabrous above, the lower ones 1-1% ft. long, pet- ioled, pinnate, the obovate lobes coarsely cut-toothed or auricled at the base; stem-lvs. sessile, pinnate, with oblong-lance lobes : solitary, just above the uppermost leaf ; fls. red, those of the disc rosy or white : outer scales of the involucre with lanceolate tips, the middle rounded, deeply fringed, ciliate. Asia Minor, Persia. 13. atropurptirea, Waldst. & Kit. (C calociphala, Willd.). Peren- nial : sts. erect, branched, about 2-3 ft. high, the branches white- woolly at the summit: Ivs. bipin- nate, lobes linear-lanceolate, acumi- . nate ; lowest Ivs. petioled, upper- most pinnatifid: without bracts ; invol. scales with fringed ciliate white lanceolate tips, the innermost ones rounded, scarious-raargined : iJs. black-purple. Hungary. 14. Babylbnica, Linn. Silvery white perennial: sts. simple, stout, erect, 6-10 or 12 ft. high : Ivs. long^ coria- ceous, strongly deeurrent on the stem, the radical lyrate, the lower st
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