Rothia.] XLVII. LEGUMINOSiE. 559 



2. ROTHIA, Pers. 



Diffuse annuals. Leaves trifoliate. Flowers numerous minute 

 axillary. Calyx-tube turbinate, teeth as long as tube 2 upper 

 broader, arched. Corolla hardly exsert. Petals narrow clawed. 

 Filaments in a tube slit along top; anthers uniform. Ovary 

 sessile linear; ovules many; style short, filiform. Pod linear, 

 slender, compressed. Seeds 20 or more. Species 2, i African. 



(i) R. trifoliata Pers. Dec. Prod. ii. 282 ; Baker, in Hook fil. 

 F.B.I, ii. 63; Wight, I.e. t. 199. 



Silky, much-branched. Branches i ft. long. Leaves i in. 

 long ; petioles "5 in. long ; leaflets silky, elliptic narrowed at base, 

 minutely mucronate, '5 in. long, "2 in. wide, glabrous. Flowers 

 I to 4. Calyx '05 in. long. Corolla very small, silky, yellow, 

 inconspicuous. Pods i'5 to 2 in. long, silky. Hab. Sandy fields. 

 Province Wellesley, Tasek Gelugur; seashore, Telok Ayer Tawar. 

 Dislrib. India, Ceylon, Australia. 



3. CROTALARIA, Linn. 



Herbs or under-shrubs. Leaves simple, trifoliate or 5- to 

 7-foliolate. Flowers showy in terminal or leaf-opposed racemes. 

 Calyx tube short, teeth free or connate in 2 lips. Corolla as long 

 or longer, standard round or ovate short clawed; wings obovate 

 or oblong shorter ; keel as long, its petals united, incurved, beaked. 

 Stamens monadelphous in a sheath split dorsally ; anthers di- 

 morphous, alternately on short filaments versatile and on long fila- 

 ments basifixed. Ovary sessile or stipitate linear, many-ovuled. 

 Pod sessile or stalked oblong or linear, turgid 2- to many-seeded. 

 About 250 species, tropics and sub-tropics. 



Leaves simple. 



Stem winged by decurrent stipules ; yellow 



flowers . . . . . . . (i) C. alata 



Stem not winged. 



Pod not longer than calyx ; racemes elongate ; 



flowers blue and white . . . . (2) C. sessiliflora 



Flowers few in heads, pale yellow . . • (3) C. chinensis 



Pods much longer than calyx ; glabrous. 



Diffuse silky plant ; racemes lateral ; flowers 

 yellow . . . . . . (4) C. ferruginea 



Erect stout plants ; leaves blunt ; bracts 



and stipules small ; flowers yellow . . (5) C. retusa 



Erect stout plant; leaves acute, 2 to 6 in. 



long ; stipules large, leafy . . . (6) C. sericea 



Slender ; leaves silky narrow linear or ob- 



lanceolate . . . . . . (7) C. albida 



Stout plants; leaves broad rhomboid. 



Pod hairy ; robust bushy herb ; flowers 



light blue ; stipules large . . • (§) C. verrucosa 



Pod pubescent ; stipules small ; flowers 

 yellow . . . . . . (9) C. semperflorens 



