294 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
material, however, has been seen except that of Hartweg’s collection, made more 
than fifty vears ago. The attention of Californian botanists is called to the desir 
ability of collecting a full series of this species. 
26, Lomatium oreganum (. & Kk. 
Peucedanmm oreganum ©. & R. Rev. N. Am. Umibell. 64. 0 1888. 
A very much reduced cespitose plant from a multicipital caudex, 
pubescent throughout; leaves narrow in outline, once to twice pinnate, 
alternate segments short, ovate to linear-ovate, apiculate: peduncles 
slender and weak, longer than the leaves, 2.5 to 10 em. long: umbels 
simple, or of two small umbellets (one sessile), with involucels of linear 
green bractlets; pedicels of sterile flowers 2 to 3 mm. long, fruiting 
pedicels fewer and shorter; fruit 3 to 4 mm. long, broadly oblong, 
pubescent, with narrow wings: calyx teeth present. 
Type locality, ‘**Alpine rocks, Blue and Eagle Creek Mountains,” 
Oregon; collected by WoC. Cus/ch. no. 1890, August, L886—1888; 
type in Herb. Coulter, fragments in U.S. Nat. Herb. 
Specimens examined: 
OREGON: Type specimens as cited under type locality; also cliffs of Blue Moun- 
tains, head of Anthonys Creck (said by Cusick to be the exact locality of 
the type specimens), altitude 2,400 meters, Cusick 2217, July 19-September 
14, 1899. 
27. Lomatium hallii (Watson) C. & R. 
Peucedanum hallii Watson, Proc, Am. Acad, 11: 141. 1876. 
Short caulescent, with elongated peduncles 1.5 to +din. high, elabrous; 
leaves pinnate, oblong in outline, the ovate segments about | em. lone, 
deeply toothed or pinnatifid; umbel equally 3 to 6-rayed, with involu- 
cels of small bractlets; rays about 2.5 em. long; pedicels 6 to 8 min. 
long; flowers vellow; fruit broadly elliptical, glabrous, 6 mm. long, 4 
mm. broad, with filiform dorsal and intermediate ribs; oil tubes 3 in 
the intervals, + to 6 on the commissural side. 
Type locality, northern Oregon;” collected by //a//, no, 211; type 
in Herb, Gray. 
Alpine in northern Oregon and Washington. 
Specimens examimed: 
OrEGON: Mount Hood, about timber line, /fomwell 738, August 9, 1893. 
28. Lomatium leibergi U. & R., sp. nov. 
Very short caulescent, glabrous throughout, from a caudex which 
becomes large and multicipital; peduncles 2 to 3 dm. high, exceeding 
the leaves; leaves bright green, narrow in outline, 1 to 1.5 dm. long, 
bipinnate; pinnae 6 or 7 pairs, ovate to oblong, lowest pair somewhat 
elongated; ultimate divisions small, ovate, pinnately lobed or toothed; 
umbel rather equally few-rayed, with involucels of linear elongated 
distinct bractlets; rays 12 to 18 mm. long: pedicels 2 to 4mm. lone; 
flowers deep vellowy fruit (immature) narrowly oblong, 5 nun. lone, 
with narrow wings. 
