46 RYDBERG: Rocky MOUNTAIN FLORA 
This species is related to L. puszlus, but differs in the more 
elongated racemes, which much exceed the leaves, the smaller 
flowers of a different color and the short upper lip of the calyx. 
Urau : Southern Utah, 1874, Parry 47 (type in herb. Colum- 
bia Univ.) ; St. George, 1877, Palmer SO. 
Trifolium confusum 
Perennial with a rootstock; stems erect, simple, 2-3 dm. 
high, glabrous below, sparingly strigose above ; stipules ovate, 
acute, about 2 cm. long, glabrous, veiny ; leaflets of the lower — 
leaves oval and rounded at the apex, of the upper ones lanceolate, 
and acute, 2-3 cm. long, finely denticulate, glabrous or nearly so; 
peduncles 5-7 cm. long ; head globose ; flowers reflexed in fruit ; 
calyx-tube 2 mm. long, glabrous except the villous margin ; teeth — 
villous, 4-5 mm. long, subulate-setaceous ; corolla rose or pur- 
plish, 13-15 mm. long; ovary 4-ovuled; legume sparingly hairy, 
stipitate. 
This species belongs to the 7. /ongipes group. It is probably 
most nearly related to 7. Rydbergit and T. pedunculatum. From 
the former it differs in the nearly glabrous calyx-tube and the 
rose-colored and larger corollas ; from the latter in the larger and 
reflexed flowers. It differs from 7. longipes and T. Rusdyi in its 
different habit and nearly glabrous calyx. 
SouTHERN Utan: 1874, C. C. Parry 35 (type in herb. Colum-_ 
bia Univ.). 
Trifolium Aitonii 
Perennial with a rootstock; stem 3-4 dm. high, glabrous — 
below, strigose above ; stipules ovate, short-acuminate, about 2— 
cm. long, veiny; leaflets ovate, thin, obtuse or rounded and | 
mucronate at the apex, finely denticulate, 2-4.5 cm. long, glab- 
rous above, sparingly hairy beneath; peduncles several, 1-2 
dm. long; heads globose; flowers reflexed in fruit on pedicels 
2-3 mm. long; calyx pubescent throughout; tube 2 mm. long; 
teeth subulate, about 4 mm. long; corolla about 12 mm. long; 
legume stipitate, strigose, about 2-seeded. 
This species is related to TZ. /atifolium, from which it differs 
mainly in the different habit, larger size, longer peduncles and» 
larger ovate instead of oval or obovate leaflets. 
Ipano: Palouse County, 1892, G. B. Aiton 6 in herb. 
N. Y. Bot. Gard.). seus 
