148 ENGLISH BOTANY. 



a broad wing ; interstices each with 1 to 3 vittae. Involucre 

 variable. 



Plants with decompound leaves, and yellow, white, or greenish 

 flowers. 



Tliis genus of plants is said to be the Trtvictcayov {peukedanon) of Theophrastus 

 and Dioscorides, and the name is derived from irevKri (jyeuke), the pine-tree, on account 

 of the resinous smell of its leaves. 



Section I.— EU-PEUCEDANUM. D. C. 



Calyx-limb 5-toothed. Wings of the mericarps narrow ; inter- 

 stices with a single vitta ; commissural vittse superficial. Invo- 

 lucre absent or few-leaved. 



SPECIES I— PEUCEDANUM OFFICINALE. 



Plate DCIX. 

 BiUot, Fl. Gall, et Germ. Exsicc. No. 3391. 



Leaves 3- to 5-times ternate ; leaflets linear, attenuated at both 

 ends, 3-nerved, entire. Involucre of about 3 linear-acuminate 

 deciduous leaves. Elowers bufl'-yellow. Pedicels much longer than 

 the fruit. Cremocarp elliptical-oval, much compressed ; mericarps 

 each with 5 slender ridges on the back, the 3 central ones con- 

 tiguous and the 2 lateral remote. 



In salt marshes. Very rare. About Eaversham and Whitstable, 

 Kent, and near Walton, Essex. 



England. Perennial. Autumn. 



Stem erect, 18 inches to 4 feet high, round, solid, finely striate, 

 branched at the apex ; branches frequently opposite. Radical 

 leaves very large, on long stalks, 3 times ternate in the specimens 

 which have come under my notice, but, according to Koch and 

 other writers, 5 times ternate ; leaflets parallel-nerved, somewhat 

 grass-like, 1 to 4 inches long, spreading, flaccid. Umbels of 10 to 

 20 slender straight rays, IJ to 4 inches long ; pedicels -^ to 1 inch 

 long. Involucels of setaceous leaves much shorter than the pedicels. 

 Elowers -j^^ inch across, not radiant, pale-yellow, the central ones 

 mostly barren. Calyx-teeth very minute, triangular. Petals roundish- 

 oval, emarginate, with inflexed points. Stamens very long. Styles 

 thick, sharply recurved, about as long as the stylopod. Cremocarp 

 olive-brown, \ inch long, about twice as long as broad, the wing 

 aboutone-quarter of the breadth of the solid part, truncate at the 

 base ; ridges slightly elevated, the marginal ones, from which the 



