. 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. 31. AETHUSA L. Sp. PI. 256. 1753. An annual glabrous herb, with pinnately dissected somewhat shining leaves, and com- pound umbels, both terminal and opposite the leaves. Involucre none, or of a single bract. Bracts of the involucels 1-5, setaceous, turned to one side. Calyx-teeth obsolete. Petals inflexed at the apex. Stylopodium broad, thick. Fruit globose-ov
. 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. 31. AETHUSA L. Sp. PI. 256. 1753. An annual glabrous herb, with pinnately dissected somewhat shining leaves, and com- pound umbels, both terminal and opposite the leaves. Involucre none, or of a single bract. Bracts of the involucels 1-5, setaceous, turned to one side. Calyx-teeth obsolete. Petals inflexed at the apex. Stylopodium broad, thick. Fruit globose-ovoid, glabrous. Carpels dorsally compressed, the 5 ribs prominent, corky, acute, nearly equal; oil-tubes solitary in the intervals, 2 on the commissural side. Seed-face flat. [Greek, burning, from the shin- ing foliage.] A monotypic genus of Europe and Asia. I. Aethusa Cynapium L. Fool's Parsley or Cicely. Fig. 3147. Aethusa Cynapium L. Sp. PI. 256. 1753. Erect, leafy, dichotomously branched, rather slender, i°-2i° high. Leaves 2-3-pinnate, the lower slender-petioled, the upper nearly sessile; petiole-bases dilated; ultimate segments linear, acutish; umbels long-peduncled, 2'-3' broad in fruit, 8-i2-rayed; rays i'-i4' long; pedicels i"-4" long; bractlets of the , linear, turned downward; fruit about li" long, somewhat longer than broad; flowers white. In waste places, Nova Scotia to Pennsylvania, On- tario and Minnesota. Poisonous. Adventive from Europe. False or dog's-parsley. Dog-poison. Small or lesser hemlock. 32. COELOPLEURUM Ledeb. Fl. Ross. 2: 361. 1844. Stout and tall maritime perennials, with large 2-3-ternate leaves, inflated petioles, and compound umhels of greenish white flowers. Involucre of a few linear deciduous bracts, or none. Involucels of numerous linear bracts. Calyx-teeth obsolete. Petals with an mflexed apex. Stylopodium depressed. Fruit oblong to subglobose, scarcely flattened; dorsal and intermediate ribs promine
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
