DICOTYLEDONOUS PLANTS. 35 



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

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

 pound, with the involueels 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 irregularly toothed. 



n. CARUM, CARAWAY, PARSLEY. 



Calyx-teeth minute. I'ruit smooth, oblong or ovate, with 

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

 ribs .f base of the styles thickened into a conical mass. Herbs 

 with slender, smooth stems, pinnately compound smooth 

 leaves, compound umbels, and white or yellowish flowers. 



(C. Carui), 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. Fruit 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. 



6. (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 the poisonous species from the harmless ones, to taste them. 



