. Class-book of botany [microform] : being outlines of the structure, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. Obdbh 10.—COMPOSIT-iE. 467 .Nos. 1,3 ..Nos. 8, 4 from hairy; pappus in 3 series,, the outer lO-toothed, the 3 inner each 10-bristled.—Oriental herbs. C. benedlctus L. Lva. somewhat decurrent; dentate and spiny; invol doubly spinous, woolly, bracteate.^jp Native of Persia, Tauria and Greece. About 2f Ingh, with yellow flowers. Sparingly naturalized. June.—It was for
. Class-book of botany [microform] : being outlines of the structure, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. Obdbh 10.—COMPOSIT-iE. 467 .Nos. 1,3 ..Nos. 8, 4 from hairy; pappus in 3 series,, the outer lO-toothed, the 3 inner each 10-bristled.—Oriental herbs. C. benedlctus L. Lva. somewhat decurrent; dentate and spiny; invol doubly spinous, woolly, bracteate.^jp Native of Persia, Tauria and Greece. About 2f Ingh, with yellow flowers. Sparingly naturalized. June.—It was formerly in great estimation in medicine, but is now considered worthless. | § 95. ONOPOR'DON, Vaill. Cotton Thistle. Heads discoid, homo- gamous; involucre ventricous, imbricate with spreading, spinous scales; receptacle deeply alveolate ; pappus copious, capillary, scabrous; ache- nia 4-angled.—Large, branching herbs, with decurrent leaves. O. acanthitim L. Invol. scales spreading, subulate; Ivs. ovate-oblong, decurrent, sinuate, spinous, woolly on both ® This fine looking thistle occurs natur- alized in waste grounds, and is about 3f in height. The whole plant has a white cottony appoarance. Stem winged by the decurrent leaves which are unusually large. Involucre round, cottony, spinous. Flowers purple. July, Aug. § Eur. 96. CIR SIUM, Tourn. (Cnicus L. Muhl.) Thistle. (Gr. Kipao^, a swelling of a vein, which this plant was supposed to heal.) Heads discoid, homogamous; involucre subglobous, of many rows of spi- nous-pointed, imbricated scales; receptacle bristly; style scarcely divided; pappus copious, plumous; achcnia compressed, smooth.— Herbs with alternato Ivs., generally armed with spinous prickles. Fls. cyanic. ? Leaves (locurrent on tho stem more or less. Scales tipped with spines Nos] 2 * Leaves not involucrato witli a wlioil of 1-i to '20 spiny ;.". .No :) —llenUs nalied.—Flowors ocliroleucous. Scales priclily N
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