228 
Peucedanum canbyi Coult. & Rose, Bot. Gaz. xii, 78 (1888). 
Northern slopes, Upper Ferry, Clearwater River, above Lewiston; May 10 
(No. 150), 
Peucedanum circumdatum Wats. Proc. Amer, Acad. xxi, 474 (1887). 
On basaltic rocks, Upper Ferry, Clearwater River, above Lewiston; April 24- 
(No. 21). 
Peucedanum geyeri Wats. Proc. Amer. Acad. xiv, 293 (1879). 
Basaltic rocks on Hatwai Creek and south side of Clearwater River, Nez 
Perces County ; April 30 (No. 82), 
Peucedanum grayi Coult. & Rose, Bot. Gaz. xiii, 209 (1888); 2. millefolium Wats. 
Bot. King Surv. 129 (1871), not Sonder., 
Hillsides, Upper Ferry, Clearwater River, above Lewiston; April 24 (No. 22). 
Also vicinity of Lake Waha and on Clearwater River near mouth of Big Pot- 
latch, 
Peucedanum macrocarpum Nutt.; Torr, & Gr. FI. i, 627 (1840), 
Frequent on hillsides, Upper Ferry, Clearwater River, above Lewiston; April 
26 (No. 52). 
Peucedanum salmoniflorum Coult. & Rose, sp. nov, 
Short-caulescent or sometimes tall, 30 to 45 em. high, bearing 3 or 4 leaves, 
glabrous throughout: leaves large, ternately compound, finely dissected; ulti 
mate segments short, filiform; involucre none; bracts of the involucels few, 
filiform; rays of the umbel few (4 to 10), somewhat unequal, 2.5 to 5 em. long; 
pedicels 8 to 12 mm, long; fruit oblong, 101mm. long, glabrous; sarpel stronely 
flattened dorsally, with a broad layer of corky cells on the ventral face; dorsal 
and intermediate ribs low and obtuse; lateral wings narrow, thick, and corky ; 
oil tubes solitary in the intervals, 2 on the commisural side; seed strongly tlat- 
tened, somewhat constricted near the middle, not grooved under the oil tubes; 
stylopodium none; flowers salmon-colored. 
A species with much the habit and foliage and with the lateral wings of Lep- 
lotania, but dittering in having oil tubes and distinet dorsal and intermediate 
ribs. 
On basaltic rocks, near Upper lerry, Clearwater River, above Lewiston; 
April 24 (No. 24). Rocky hillsides, island in Clearwater River, same vicinity; 
May 2 (No. 94). 
Peucedanum triternatum robustius Coult. & Rose; P. triternatum macrocarpum 
Coult. & Rose, Rev. Umbel. 70 (1888), not P. macrocarpum Nutt. 
Basaltie rocks, Upper Ferry, Clearwater River, above Lewiston; April 24 
(No. 28), 
Heracleum lanatum Mx. FI. i, 166 (1803). 
Frequent along streams, valley of Hatwai Creek, Nez Perces County; May 24 
(No. 252). 
Leptotenia dissecta Nutt.; Torr. & Gr. F), i, 680 (1840), 
Hillsides, Craig Mountains, near Lake Waha, Nez Perces County; May 21 
(No. 227). 
Leptotenia multifida Nutt.; Torr. & Gr. FI. i, 630 (1840), 
Frequent on rich hillsides, Upper Ferry, above Lewiston, Nez Perces County ; 
May 2 (No. 103). 
Caucalis microcarpa Hook. & Arn. Bot. Beech. 348 (1840). 
Rocky creek bottoms on Little Potlateh River, Nez Perces County; June 7 
(No. 328), 
