346 PAPILIONACKAE 
Flowers pink or purple 
4. T.incarnatum, L. (Fig. 2, pl. 76.) Crimson CLover. Stems 
erect, 4 to 3 ft. high, hairy. Leaflets wedge-shaped, hairy. Heads of 
flowers on rather long stalks, oblong or long egg-shaped. Introduced. 
Summer. 
5. T. pratense, L. Rep Cuover. Erect or decumbent, stems 4 to” 
2 ft. high, silky. Leaves on long or short leaf-stalks. Leaflets oblong, 
often notched at apex, often with a pale spot near base. Stipules broad 
with bristle points. Heads without much of a flower stalk, round or 
oblong. Cultivated in fields and growing in rich soils commonly. 
6. T. medium, L. Zic-Zac Cover. Resembles the last. Heads 
longer and on a flower stem. Flowers of deeper color. Leaves without 
central spot. Dry fields. Introduced. Summer. 
Flowers white 
7. T. arvense, L. (Fig. 1, pl. 83.) Rassrr Foot. StTone CLoven. 
Plant velvety, branching, mostly procumbent. Leaflets oblong, narrow, 
notched at summit. Flowers small, white or rosy. Nearly hidden by the 
long silky calyx teeth. Heads eylindric. Fields, waste places. Summer, 
8. T. repens, L. (Fig. 8, pl. 76.) Wire CLover. Stems prostrate, 
rooting. Leaves on long leaf-stalks, leaflets inversely ovate or nearly 
round, finely notched at borders and abruptly terminated by one or two 
teeth at apex. Flowers white, sometimes rose. Common. Summer, 
9. T. hybridum, L. (Fig. 9, pl. 75.) AtsaTiaAn Cover. A larger 
plant than the last and more generally erect. Leaves on shorter leaf- 
stalks; leaflets elliptic, borders notched; stipules oval with sharp points. 
Heads globose; flowers white, later rose. Roadsides. Summer. 
10. LOTUS, L. (Hosackia, Douglas) 
Herbs, with (in our species) 3-foliate leaves and small reddish yellow 
flowers in loose umbellate clusters (3 to 12 in cluster). Calyx teeth 
equal or nearly so. Standard (two upper united petals) orbicular or 
ovate; stamens, 9 united, 1 free. Pod linear, compressed, 1 to several 
seeded. 
L. corniculatus, L. (Fig. 1, pl. 77.) Brrn’s-roor Treror. Stems 
slender, decumbent. Leaflets 3, but the two stipules, which are about 
the size and shape of the leaflets, appear to make 5 leaflets. Flowers in 
an umbel, corolla bright yellow, the standard frequently red or reddish. 
Introduced, June-Sept. 
11. CRACCA, L. (Tephrosia, Pers.) 
Hairy herbs, with compound feather-formed leaves, with an odd num- 
ber of leaflets; flowers white or purple in terminal or lateral clusters. 
Leaflets (in our species) about 13 to 25, elliptic. Stamens all united or 
one free. Pod linear, several seeded. 
1. C. virginiana, L. (Fig. 2, pl. 77.) Goats Rug. Plant silky 
with whitish hairs. Stem erect, not branching, 1 to 2 ft. high. Flowers 
in clusters, large and often numerous, yellowish-white marked with pur- 
ple. Dry sandy soil. June-July. 
