1. DAÙCUS, Tourn. Carrot.
Calyx-teeth obsolete. Fruit oblong, flattened dorsally; stylopodium depressed; carpel with 5 slender bristly primary ribs and 4 winged secondary ones, each of the latter bearing a single row of barbed prickles; oil-tubes solitary under the secondary ribs, two on the commissural side; seed-face somewhat concave or almost flat.—Bristly annuals or biennials, with pinnately decompound leaves, foliaceous and cleft involucral bracts, and white flowers in compound umbels which become strongly concave. (The ancient Greek name.)
D. Caròta, L. Biennial; stem bristly; ultimate leaf-segments lanceolate and cuspidate; rays numerous.—Naturalized everywhere, from Eu.
2. CAUCÀLIS, L.
Calyx-teeth prominent. Fruit ovate or oblong, flattened laterally; stylopodium conical; prickles barbed or hooked; seed-face deeply sulcate. Otherwise as Daucus.—Our species annual. (The ancient Greek name.)
C. nodòsa, Hudson. Decumbent, branching only at base, stems 1–2° long, retrorsely hispid; umbels naked, opposite the leaves and nearly sessile, of 2 or 3 very short rays.—Md., Iowa, and southward. (Nat. from Eu.)
C. Anthríscus, Hudson, has 1–2-pinnate leaves with broad leaflets, and more regularly compounded umbels.—Ohio, etc. (Nat. from Eu.)
3. ANGÉLICA, L.
Calyx-teeth obsolete. Fruit strongly flattened dorsally; primary ribs very prominent, the laterals extended into broad distinct wings, forming a double-winged margin to the fruit; oil-tubes one to several in the intervals or indefinite, 2 to 10 on the commissure.—Stout perennials, with ternately or pinnately compound leaves, large terminal umbels, scanty or no involucres, small many-leaved involucels, and white or greenish flowers. (Named angelic from its cordial and medicinal properties.)
[*] Seed adherent to the pericarp; oil-tubes one to several in the intervals; uppermost leaves mostly reduced to large inflated petioles.