February 28, 1913 Il 
Silverton, Howell, June, 1882; prairies, Douglas county, Howel!, 
April 28, 1891; no locality, &. fall 95, 1871. 
Washington: Bingen, Suksdorf 4508. 
Vancouver Island: Oak Bay, Macoun 78923. 
TRIFOLIUM AMOENUM Greene 
¢  Anexceedingly handsome, stout stemmed annual with large 
broadly obovate leaflets, globose heads, and a very showy corolla. 
The calyx is densely plumose. Collected in Solano county, Cal- 
ifornia. 
Annual, simple or branched from the base, about 8 dm 
high, canescently villous throughout: stems stout, rigid, striate, 
internodes long: basal leaves few, small, on long petioles, soou 
disappearing; others very large, broadly obovate to obovate-lan- 
ceolate, 3.51nm. long, 2 cm. wide, obtuse, sometimes mucronate, 
remotely or strongly erose dentate; petioles from 7cm long to 
about I cm. or less at base of peduncles; stipules lanceolate be- 
low to broadly ovate above, with a prominent triangular acumi- 
nation about 1cm. long, lobes more or less notched, prominent 
veins beneath the pubescence: heads 1 to 3 on each branch, ter- 
minal or subterminal, globose when young, ovate with age, very 
large, 3.5cm. long, 3cm. wide: peduncles from 1 to 10cm. long 
on the same plant, increasing with age: flowers showy, corolla 
with deep purple spot and extending beyond the calyx teeth 
4mm.: calyx tube 3mm. long, teeth 8mm, long, both densely 
plumose: vexillum oblanceolate, 13mm. long, 4mm. wide: ovary 
21min. long, pubescent at apex, 2-ovuled; style 8mm. long: le- 
guine membranaceous, elliptical, striate, light straw colored, pu- 
bescent at apex only, 4inm. long, 2mm. wide, 1-seeded: seeds 
decidedly vellow, ovoid, devoid of markings, 2.5mm. long, 1.5 
mim. wide. 
This is by far the largest and handsomest species of the 
group. In North American Trifolinins 219, and in Flora of 
Western Middle California, ed. 2, 227, it has been placed as a 
synonyin of 7: dichotomum on the authority of Dr. Jepson, who 
is said. to have compared it with the type of 7: dzchotomum at 
Kew. My observations at Kew led me to an entirely different 
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