74 
umbel 8 to 10-rayed, with involucels of linear or lanceolate acumi- 
nate bractlets; rays ^ to 1^ inches long; pedicels 3 to 4 lines 
long: fruit broadly elliptical to orbicular, 3 to 3^ lines Ions’, 
scarcely emarginate, with wings broader than body, and rather 
prominent dorsal and intermediate ribs: oil-tubes 2 to 4 on the 
commissural side.—/’. Californicum C. & R. Bot. Gazette, 
xiii. 143. 
California ('Thos. Coulter, Brandegee), pine woods near Monterev 
{Douglas), San Luis Obispo (Jones). 
Lhis species has been so frequently mistaken in collections that we 
were mislead until the type had been examined. 
17. PSEUDOCYMOPTERUS.— Mostly low (often cespi- 
tose) glabrous perennials from a thick elongated root, with bipin- 
nate leaves (shorter than the peduncles), no involucre, and invol- 
ucels of narrow bractlets mostly longer than the white or yellow 
flowers. 
This genus is constructed to contain a species that has been referred 
doubtfully to Thaspium and Ligusticum, and t /VO others. that have been 
referred to Cymopterus. That P. montanus should be referred to Thaspium 
is no longer held. It seems generically distinct from Ligusticum on ac- 
count of its broad lateral fruit-wings and irregular dorsal and intermediate 
ribs, dorsal flattening of the fruit, depressed stylopodium, often solitary 
oil-tubes, and yellow flowers. P. hipinnatus and P. anisatus are distinct 
from Cymopterus on account of their smaller fruit, which does not have 
broad dorsal and intermediate wings, is dorsally flattened, and contains 
prominent strengthening cells. The three species form a well-defined 
genus. 
if 
1. P. montanus. Stem erect, slender, 1 to 2 feet high: 
leaves mostly with broad outline; leaflets cut into 3 or 5 oblong or 
lanceolate segments, the upper often entire: umbel 6 to 12-rayed, 
with involucels of linear or setaceous bractlets longer than the 
yellow flowers; rays 6 to 9 lines long; pedicels about a line long: 
fruit broadly oblong, about 2 lines long, with lateral wings (not 
cohering) almost as broad as body, the dorsal and intermediates 
very variable (either ribbed or narrowly winged): oil-tubes 1 to 
4 in the intervals, 4 to 6 on the coinmissural side: seed-face plane. 
(Fig, IZ.)— Thaspium {}) montanum Gray, PI. FenJl. 57. 
'Ligusticum montanuni Benth. & Hook. Gen. Plant, i. 912 and 914. 
Colorado, New Mexico, and Arizona. 
Widely variable, especially in its foliage. The following are the ex- 
treme forms: 
