314 ORDER 4G. LEGUMINOS.E. 



6 M. maculata Willd., with Ivs. marked with a purple spot, aud pods compactly 

 spiral, and cchinate somewhat like No. 4, said to be naturalized South ; we have 

 not met with it, unless an imperfect specimen from Potsdam, N. Y., bo this plant 

 Other species of this curious genus are occasionally found in gardens. 



31. MELILOTUS, Touni. MELILOT. (Lat. mel, honey, and lotus; 

 HI drying it exhales a sweet odor.) Calyx tubular, 5-toothed, persist- 

 ent ; corolla deciduous, keel petals completely united, shorter than the 

 nlao or vexillum ; stamens diadelphor.s (9 & 1) ; legume rugous, longer 

 than the calyx, 1 to few-seeded. Genus taken from Tiifolium. Lvs. 

 pinnately trifoliate, veins of the Ifts. simple or forked. Fls. in racemes. 



1 M. officinalis Willd. St. erect, with spreading branches; Ifts. obovate-oblong, 

 oUuse, dentate; rac. spicate, axillary, paniculate, loose; cal. half as long as the 

 yellow corolla ; leg. 2-seeded, ovoid. Alluvial meadows. St. sulcate, about 3f 

 high. Lfts. smooth, with remote, mucronate teeth. Fls. in long. 1 -sided, slender 

 racemes; petals of nearly equal length. The whole plant is sweet-scented. Jn. 

 Eur. 



2 M. alba Lam. SWEET-SCENTED CLOVER. WHITE MELILOT. St. erect, branched, 

 Ifta ovate-oblong, truncate and mucronate at tho apex, remotely serrate ; slip, 

 setaceous ; cal. less than half as long as tho white cor. ; leg. 2-seeded, ovoid. 

 2/ Alluvial soils. St. robust, very branching, sulcate, 4 to Gf high. Lfts. 1 to 2' 

 loag, more obtuse at the apex than at base, mucronately serrate. Fls. numerous, 

 the racemes more loose and longer than i:i the last. Petals unequal .; banner 

 longer than wings or keel. Tory fragrant when dried. JX, Aug. f Eur. 



32. PSORA'LEA. (Gr. ^wpaAt'of, leprous or scaly ; alluding to the 

 glandular dots.) Calyx 5-clcft, campanulatc ; segments acumiiiato, lower 

 one longest ; stamens diadelphous, rarely somewhat monadclphous ; leg- 

 umes as long as the calyx, 1 -seeded, indehiscent. ^ or J?. Often 

 glandular-dotted ; stip. cohering with the base of the petiole. Fls. 

 cyanic. 



* Leavi-s jinltnately 1 and 8 (rarely 5)-foliatc Nos. 1, 2 



* Leaves pulinuUtly 5, or 5 and T-foliute Nos. 3, 4 



* Leaves pinnatcly 3 or 1 -foliate Nos. 5 3 



* Leaves pinnate, '19 to 21-foliato No. 9 



1 P. canescena MX. Very branching, canescently pubescent, lower Ivs. S-foliate, 

 upper \-foliate, Ifts. roundish-obovate, obtuse, tapering afc base into a petiolule, dot- 

 ted. Sandy woods, N. Car. to Fla. Plant 2f high, excessively branched, form- 

 ing a globular bush. Fls. in small clusters at the end of the branchlets ; small, 

 " blue at first, changing to dull yellow" (Mettauer). Cal. gibbous, almost spurred 

 at base. May Jl. 



2 P. floribunda Nutt. Canescent, much branched ; Ifts. 3, rarely 5, dotted, ob- 

 lony-olovate, varying io linear; stip. setaceous ; rac. Blender, many-flowered, twice 

 longer than the leaves; pedicels as long as tho flowers, and longer than the small, 

 ovate-acuminate bracts; vex. roundish; L j g. Finooth. Alluvial soils, 111. (Mead). 

 Ark. W. to tho R. Mts. St. 2 to 4f high, branches spreading. Lfts. 1 to 2' by 

 ti to 4''. Common petiole $ to 1' long. Fls. bluish purple, 3" long, 15 to 30 in 

 the very canescent racemes. Jn. 



3 P. Stibacaftlis Torr. & Gray. Nearly acaulescent, hirsute; Ivs. 7-foliate on very 

 long petioles ; Ifts. obovate-obiong ; fls. in dense, egg-shaped racemes ; cal. much 

 shorter than the cor. Tenn., near Nashville (Dr. Roam in N. Am. Flora). Lvs. 

 and flower-stalks almost radical, 6 to 10' long; Ifls. about 1' long. 



4 P. Lupinellus MX. St. sknder, glabrous; Ivs. 5 to 7-foliate; Ifts. linear-fili- 

 form ; rac. longer than the Ivs., many-flowered ; pod incurved at base, recurved 

 nt apex, so as to simulate tho letter S. Pine barrens, S. Car. to Fla. Sts. about 

 2fhigh. Lfts. 2 to 3' long. Fls. as large as in P. floribunda. May, Jn. 



5 P. virgata Nutt. Virgate, smootlush ; Ivs. 1-foliale, remote; lite, linear (the 

 lower mrelv 3-foliate and oblong); ped. shorter than tho Ivs.: spikes rather deus- 

 flowered. Near St. Mary's, Ga. St. about 2f high. Lfts. 2 to 4' by 2 to 4 . 

 Fb. pale violet. 



