LEPTOTENIA, UMBELLIFERZ. 251 
PEUCEDANUM. 
L. maultifida Nutt.1.c. Ferula multifida Gray. Stems 1-2 feet high, 
somewhat spreading, leaves ternate and pinnate: umbels mostly without 
involucre, pedicels of the fruit 3-12 lines long: fruit 4-6 lines long: seed- 
face concave. Brit. Columbia to California, Utah and Montana. 
* * Fruit with oil-tubes and pedicels. 
L. Watsoni C. & R.1.c. 52. Low, a foot high or less, rather stout, 
somewhat branching: leaves few and small, at or near the base, ternate- 
innately decompound, the ultimate segments very small, ovate and cus- 
pidate: umbel with 5-10 variously elongated divaricate rays, no involucre 
‘and involucels of few setaceous bractlets: rays 2-4 inches long: fruiting 
pedicels about 6 lines long and divaricate; fruit 6 lines long: oil-tubes 3 in 
the intervals: seed face concave. In the Wenatchee region, Washington. 
L. minor Rose in Herb. Stems about a foot high. glabrous: leaves 
very much dissected, the alternate segments linear or filiform : umbel 8-20- 
rayed, with no invyolucre, and involucels of several linear accuminate 
bractlets ; rays 3-4 inches long; flowers purple: fruit 6-9 lines long as longas 
the pedicels 4-6 lines broad ; wings very corky margined: oil-tube prominent, 
3 in the intervals of the distinct dorsal and intermediate ribs, 4 on the 
commissure. On stony hillsides in the John Day country, Oregon. 
L. purpurea C. & R. 1. c. Frrula purpurea Watson Stout many- 
stemmed from a large thick root; stems 2-4 feet high, whole plant glau- 
cous with a white bloom: leaves ample very finely dissected, ultimate 
segments linear or filiform umbel many rayed with no involucre and in- 
-wolucels of several bractlets rays 3-4 inches long; flowers purple: fruit 
9-12 lines long as long as the pedicels; 5-6 lines broad with very promi- 
nent corky margins to the wings: oil-tubes prominent. 3 in the intervals 
of the distinct dorsal and intermediate ribs, 4 on the commissure. On 
rocky hillsides along the Columbia river, near the mouth of the Klickitat. 
L. Californica Nutt. 1. c. 630. Ferula Californica Gray. Rather 
stout, 1-3 feet high, with 1 or 2 stem leaves: leaves ternate and pinnate 
or twice ternate; leaflets cuneate-obovate 1-2 inches long, usually 3-lobed, 
coarsely toothed above: umbel 15-20: rayed, with involucre of 1-2 narrow 
bracts or none and no inyolucels; rays 2-4 inches long, pedicels 2-4 lines 
long; fruit 5-7 lines long, 3-4 lines broad, with a thinner margin than any 
other species; dorsal and intermediate ribs distinct: oil-tubes 3-4 in the 
intervals 6 on the commissure. On dry hillsides, Southern Oregon to 
California. 
10 PEUCEDANUM Koch Umb. f, 28 and 29, L. Gen. n. 339. 
Short caulescent or acaulescent perennial or biennial herbs with 
fusiform or tuberous roots, ternate or pinnate to dissected leaves, 
no involucre, involucels usually present, and yellow, white or 
pinkish flowers. Calyx-lobes obsolete or evident. Fruit oblong 
to suborbicular. Carpel with dorsal and intermediate ribs fili- 
form and approximate; lateral wings broad and thin, coherent 
till maturity with those of the other carpel, forming a broad, 
membranous. wing to the fruit; commissural face without a 
prominent longitudinal ridge after separation from the carpo- 
phore. Oil-tubes 1-8 in the intervals, 2-10 on the commissure. 
Seed flat with plane or slightly concave face. 
§ I. Mostly low, from globose tubers: leaves small more or less dis- 
sected, with short segments: wings of the fruit narrow: oil-tubes 
