DICOTYLEDONOUS PLANTS. 35 



between the ribs. Seeds flat. A stout perennial with the 

 veiy large leaves compound in threes. Umbels large, com- 

 pound, with the involucels many-leaved. Petals white, 

 inversely heart-shaped, the outer ones usually 2-cleft and 

 larger. 



(H. LANATUM.) Stem grooved and woolly, 4-8 ft. high; leaflets 

 petioled, broad, deeply and irregiilarly toothed. 



II. CARUM, CAKAAVAY, PARSLEY. 



Calyx-teeth minute. Fruit smooth, oblong or ovat3, with 

 thread-like ribs ; oil-tube single in the intervals between the 

 ribs ; base of the stj'les thickened into a conical mass. Herbs 

 with slender, smooth stems, pinnately compound smooth 

 leaves, compound umbels, and white or yellowish flowers. 



(C. Caeui), Caraway. Leaves large, with the leaflets cut into 

 numerous thread-like divisions ; flowers white ; fruit aromatic, used 

 somewhat in this country and more in N. Europe for flavoring 

 cookies, bread, etc. Perennial. 



III. OSMORRHIZA, SWEET CICELY. 



Calyx-teeth wanting. ITruit linear or nearly so, tapered 

 away at the base, with 5 equal bristly ribs, without oil-tubes. 

 Perennials, springing from stout aromatic roots, with leaves 

 compound in threes and white flowers in compound umbels. 



a. (O. BREViSTYLis), Hairy Sweet Cicely. Rather stout 

 and hairy. Style and its enlarged base somewhat conical ; root 

 nauseous. 



h. (O. LONGiSTYLis), Smooth-leaved Sweet Cicely. Smooth 

 or nearly so. Style rather thread-like ; root of a pleasant aromatic 

 flavor (as is also the fruit). 



Caution. So many plants of this family have actively poisonous roots 

 and foliage that it is unsafe for any one but a botanist, who can distin- 

 guish tlie poisonous species from the harmless ones, to taste them. 



