358 



FABACEAE. 



Vol. II. 



13. Trifolium carolinianum Michx. Carolina 

 Clover. Fig. 2486. 



Trifolium carolinianum Michx. Fl. Bor, Am. 2: 58. 1803. 



Perennial, pubescent, tufted, ascending or procum- 

 bent, much branched from the base, 3'-8' high. Leaves 

 slender-petioled; stipules ovate or ovate-lanceolate, fo- 

 liaceous, 2"-4" long, acute, few-toothed toward the 

 apex, or entire; leaflets all from the same point, short- 

 stalked, obovate, emarginate or obcordate, cuneate at the 

 base, denticulate, 2"-6" long; heads globose; peduncles 

 slender, elongated; flowers purplish, 2"-3" long; stand- 

 ard apiculate ; pedicels i"-2" long, strongly reflexed in 

 fruit; corolla scarcely longer than the calyx; calyx- 

 teeth lanceolate, herbaceous, villous, longer than the 

 tube; pod about 4-seeded. 



Naturalized in waste places about Philadelphia ; native in 

 fields and open places, Virginia to Florida, west to Kansas, 

 Arkansas and Texas. March-Oct. 



14. Trifolium repens L. White, Dutch or Honeysuckle Clover. White Trefoil. 

 Purple-grass. Purplewort. Fig. 2487. 



Trifolium repens L. Sp. PI. 767. 1753. 



Perennial, glabrous, or with a few scattered 

 hairs, branching at the base, the branches creep- 

 ing, often rooting at the nodes, 4'-:2' long. 

 Leaves long-petioled ; stipules ovate-lanceolate 

 membranous, acute, 2"-$" long; leaflets all from 

 the same point, short-stalked, obovate, emarginate 

 or obcordate, broadly cuneate at the base, denticu- 

 late, 4"-9" long ; heads globose, long-peduncled ; 

 flowers white, 3"-5" long; pedicels i"-2" long, 

 finally reflexed ; corolla 2-3-times as long as the 

 calyx ; calyx-teeth acuminate, somewhat shorter 

 than the tube ; pod about 4-seeded. 



In fields, waste ground and open places, very com- 

 mon throughout our area and in the southern States. 

 Also in the Northwest. Naturalized from Europe, 

 or perhaps native in the extreme north. Naturalized 

 in the mountains of Jamaica and in Bermuda. Na- 

 tive also of Siberia. Widely distributed in all tem- 

 perate regions. Leaflets sometimes 4-9. Heads oc- 

 casionally proliferous. Flowers sometimes pinkish. 

 English names, sheep's gowan, honeystalks, lamb- 

 sucklings, and sometimes shamrock. May-Dec. 



13. LOTUS [Tourn.] L. Sp. PI. 773. 1753. 



Herbs with 3-S-foliolate leaves, and umbelled reddish yellow or wdiite flowers. Calyx- 

 teeth nearly equal. Petals free from the stamen-tube; standard ovate or orbicular; wings 

 oblong or obovate; keel incurved, obtuse or beaked. Stamens diadelphous (i and 9); 

 anthers all alike. Ovary sessile, i-seA'eral-ovuled. Pod linear or oblong, flattish or terete, 

 2-valved, i-several-seeded, septate or continuous between the seeds, [The Greek name of 

 several dififerent plants,] 



About 90 species, of wide geographic distribution in the Old World, the following typical. 



