UMBELLIFERAE (PARSLEY FAMILY) 



617 



with pinnately compound leaves, involucels of numerous nar- 

 rowly lanceolate acuminate bractlets, and long-peduncled 

 umbels of white flowers. (Name from t-8, well, and X6<>ot, a 

 crest, alluding to the calyx or perhaps to the plume-like leaves.) 

 1. E. americanus Nutt. Radical and lower stem-leaves 

 hirire, 1-2-pinnately compound, with leaflets cut into short 

 narrow segments ; upper stem-leaves ternate, with narrowly 

 linear elongated leaflets; fruit 4-6 mm. long. O. to Mo., 

 Tenn., and Ark. July. FIG. 832. 



23. ANTHRiSCUS Bernh. CHERVIL 



Fruit linear, notched at base, beaked, glabrous, without 

 882. E. americanus ribs (but beak ribbed) ; oil-tubes none, stylopodium conical, 

 x 4. seed-face sulcate. Resembling Chaerophyllum in vegetative 



characters. (The ancient Roman name.) 



1. A. CEREF6Lii:M (L.) Hoffm. Mature fruit smooth and shining. Waste 

 places, fields, etc., Que. and e. Pa. (Introd. from Eu.) 



24. SCANDIX [Tourn.] L. VENUS' COMB 



Fruit narrowly oblong, terminating in a long linear beak. Oil-tubes solitary 

 at the intervals or none. Carpels subterete. Seed concave on the inner face. 

 Slender annuals with pinnately much divided leaves and white flowers. (An- 

 cient Greek name of the Chervil.) 



1. S. PECTEN-VENERIS L. Sparingly pubescent, 2-5 dm. high, commonly 

 branched from the base ; flowers nearly sessile ; the beak of the fruit 4-6 cm. 

 long, densely ciliate on the edges. Waste places, especially near Atlantic 

 ports, more sparingly westw. (Adv. from Eurasia. ) 



25. BUPLEtTRUM [Tourn.] L. THOROUGH-WAX 



Calyx-teeth obsolete. Fruit oblong, with very slender ribs, no oil-tubes, 

 depressed stylopodium, and seed-face somewhat concave. Smooth annual, 

 with ovate perfoliate entire leaves, no involucre, involucels of 6 very con- 

 spicuous ovate mucronate bractlets, and yellow flowers. (Name from /3oD$, an 

 ox, and ir\tvp6v, a rib.} 



1. B. ROTDNDirbLiuM L. Frequent in fields, etc., N. H. to N. C., S. Dak., 

 and Ariz. (Nat from Eu.) 



26. LILAE6PSIS Greene. 



Calyx-teeth small. Fruit globose or slightly flattened laterally ; dorsal ribs 

 filiform, the lateral thick and corky ; oil-tubes solitary in the intervals, 2 on 

 the commissure. Dwarf creeper with hollow cylindrical or awl-shaped nodose 

 petioles in place of leaves, simple few-flowered umbels, and white flowers. 

 (Named from its resemblance to Lilaea.) CRANTZIA Nutt., not Scop. 



1. L. lineata (Michx.) Greene. Leaves very obtuse, 2-8 cm. long, 2-4 mm. 

 broad ; fruit 2 mm. long, the thick lateral wings forming a corky margin. 

 (Crantzia Nutt.) In mud of brackish marshes along the coast, N. E. to Miss. 

 July. (Widely distributed.) 



27. CYWOSCIADIUM DC. 



Calyx-teeth distinct. Fruit short, glabrous, scarcely flattened ; lateral ribs 

 forming a corky margin; stylopodium conical. Slender annuals, with pin- 

 nately divided leaves. Involucre and involucels present. Petals white. (Name 

 from Kixav, dog, and ffmdSiov, a sunshade, a fanciful designation referring to the 

 umbels.) 



