344 PAPILIONACEAE 
4. M. arabica, All. (Fig. 8, pl. 75.) Sporrep Mepic, Leaflets in- 
versely heart-shaped. Stipules similar to those of No. 3. Leaflets with 
1 or more purple spots near the center. Pod with reticulations and with 
marginal prickles. Waste places. All summer. 
8 MELILOTUS, (Tourn.) Hill. 
Tall herbs, with trifoliate leaves and with numerous small flowers in 
long slender spikes. Calyx teeth 5, nearly equal. Pod ovoid with one or 
more seeds. Plants very fragrant. 
Blowers: white? a Sse pS ere: eb ise tos obec, mls let Veleuveru Be Unnicha te iain Minas CEES 
Blowers) ‘yellow: 3. seo Ge 2: | (cp Wis ite (tice wel ce bom cities: vibes Reine mG ra ass 
1. M. alba, Desv. (Fig. 5. pl. 76.) Wire Sweet Crover. Erect; 
branching, with slender branches, 3 to 10 ft. high. Leaflets oblong or 
inversely lance-shaped, notched or rounded at extremity. Flowers white. 
Along roadsides and waste places. June-Nov. 
2. M. officinalis, (L.) Lam. (Fig. 4, pl. 76.) |. Yernrow Sweer 
CLoveR. Resembles No. 1, but leaflets are mostly rather broader and 
flowers are yellow. 
g. TRIFOLIUM, L. 
Tufted or spreading herbs with (in our species) trifoliate leaves, the 
leaflets usually toothed. Flowers small, in more or less dense heads. 
Stamens, 9 united, 1 more or less free. Pod oblong or cylindric, 1 to 6 
seeded, often included in the calyx. 
Tiowers yellow. 
Stipules long and narrow (length at least 3 times the breadth) T. agrarium 
Stipules broad (length not more than twice the breadth). 
Flowers in the head usually more than 20 . . . . . T. procumbens 
Flowerstin’ head few (roto T2035 3 6s) We. ley) ua) Mean Cer 
Flowers pink and purple. 
Leaflets oval, with a pale spot on upper side . . . . . . T. pratense 
Leaflets oblong, without the pale spot .. .. .-. «+. « « JT. medium 
Leaflets pear-shaped or wedge-shaped . . . . «. . «. « YT. itncarnatum 
Flowers white. 
Calyx teeth long, silky, nearly hiding the peu white or ei! pink 
corolla . 7 es . « ds aruvense 
Calyx teeth not hiding “the corolla. 
Planta to 2 ft. “high! <b. se | ie) eee tens Mon, seth onde erect) Eyecneneoer 
Plant?6.to 12, in: mbigh 3; sys, si) ve) eller. Ate) tus) 2) “le nes melt near 
Flowers yellow 
1. T. agrarium, L. (Fig. 6, pl. 76.) Ye~ttow Ciover. Hop CLover. 
Stems bending, ascending. Leaflets inversely ovate, finely notched at sum- 
mit. Stipules narrowly lance-shaped, tapering to a sharp point. Flowers 
bright yellow in dense heads, the flowers of Which are, as they mature, 
turned back, calyx teeth not equal, the inferior being twice as long as 
the superior. Along roadsides, in waste places. All summer. 
2. T. procumbens, L. (Fig. 7, pl. 76.) Low or Hor Treror. Hop 
CLOVER. Stems more spreading than No. 1 and more silky, 3 to 6 in. 
long. Leaflets wedge-shaped, rounded and generally notched at apex. 
Stipules egg-shaped, rather greater in length than breadth. Heads of 20 
to 40 flowers, turned back when mature. Sandy fields and roadsides. 
All summer. 
3. T. dubium, Sibth. (Fig. 3, pl. 76.) Least Hor Crover. Stems 
similar to last. Leaflets decidedly notched at apex. Flowers only 3 to 
15 in head. Waste places. Summer. 
