PARSLEY FAMILY 173 
IV. OSMORHIZA Raf. (WASHINGTONIA) 
Perennials, springing from stout, aromatic roots. Leaves 
compound in threes. Flowers white, in compound umbels. 
Calyx teeth wanting. Fruit linear or nearly so, tapering at 
the base, with 5 equal bristly ribs, without oil tubes. 
1. 0. Claytoni Clarke. Hairy Sweet Crcery. Rather stout and 
hairy, especially when young, 11-3 ft. high. Lower leaves on long 
petioles, large, twice compound in threes, the divisions ovate or oval, 
cut-toothed ; upper leaves nearly sessile, less compound. Umbels with 
long peduncles and spreading rays. Style and its enlarged base some- 
what conical. Root nauseous. Rich woods. 
2. O. longistylis DC. Smoorn-Leavep Sweet Cicery. Much 
like No. 1 in general appearance. Smooth or nearly so. Style rather 
thread-like. Root of a pleasant aromatic flavor (as is also the fruit). 
Woods. 
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 distinguish the poisonous species from the harmless ones, to taste 
them. 
Vv. CARUM L. 
Herbs, with slender, smooth stems. Leaves pinnately com- 
pound, smooth. Umbels compound. Flowers white or yellow- 
ish. Calyx teeth minute. Fruit smooth, oblong or ovate, with 
thread-like ribs; oil tube single in the intervals between the 
ribs; base of the styles thickened into a conical mass. 
1. C. CarviL. Caraway. Perennial. Leaves large, with the leaf- 
lets 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. Introduced from Europe. 
VI. ZIZIA Koch. 
Smooth perennials. Leaves generally as in Thaspium. In- 
volucre wanting; involucels of small bractlets. Umbels com- 
pound. Flowers yellow. Calyx teeth prominent. Fruit more 
or less ovoid, smooth, with thread-like ribs ; oil tubes large and 
solitary between the ribs, and a little one in each rib; the 
central fruit of each umbellet sessile. 
