LEGUMINOSAE 251 



Pods subcylindric or somewhat flattened, slightly twisted, pendulous, about 

 20 cm long, 3 mm wide, depressed between the seeds. 



In waste places, rare, fl. Aug.-Oct.; known in the Philippines only from 

 the vicinity of Manila, introduced. Widely distributed in the tropics. 



40. CROTALARIA Linnaeus 



Herbs or shrubs, various in habit, with simple or palmately 3- to 7-folio- 

 late leaves. Flowers racemose. Calyx-tube short, the teeth linear or lan- 

 ceolate. Corolla as long as or exceeding the calyx, the standard usually 

 round, longer than the wings and keel. Stamens diadelphous. Ovary sessile 

 or stalked, ovules few or many; style bearded upward. Pod inflated, sessile 

 or stipitate, straight or curved. (Greek "rattle.") 



A very large genus in all tropical and subtropical regions, 16 species in 

 the Philippines. 



1. Leaves simple. 



2. Pod about as long as the calyx..... 1. C. linifolia 



2. Pod much longer than the calyx. 



3. Flowers yellow; lieaves linear to oblong _ 2. C. juncea 



3. Flowers blue; leaves ovate; stems angular; stipules largd, persistent. 



3. C verrucoaa 

 1. Leaves 3-foliolate. 



3. Inflorescence terminal; leaflets broad at the apex 4. C. inocma 



3. Inflorescence axillary; leaflets narrowed to the apex.. 5,'C. bracteata 

 1. Leaves 5- to 7-foliolate 6. C. quinquefolia 



1. C. Ilnlfolla L. f. 



A slender, erect, simple or branched, annual herb 10 to 80 cm high, 

 pubescent. Leaves linear to narrowly oblong-lanceolate, 1 to 3 cm long, 

 2 to 5 mm wide. Racemes terminal, elongated, the flowers less Jhan 1 cm 

 long, scattered, yellow. Calyx green, tinged with brown, 2-lipped, the 

 upper lip with 2 short teeth, the lower lip with 3 linear ones. Corolla 

 yellow, the standard 6 to 7 mm wide.- Pod^ glabrous, "black, ovoid-oblong, 

 obtuse, about 7 mm long, 4 mm thick, inflated, containing 8 to 10 seeds. 

 (Fl. Filip. pi. S88, C. atenophylla.) 



Common in open, rather dry grass lands, fl. all the year, but mostly in 

 the rainy season; widely distributed in the Philippines. Tropical Africa, 

 India to China, Malaya, and northern Australia. 



2. C. JUNCEA L. Sunn Hemp. ,.. . „ 

 An erect, stiff, branched, suflPrutescent herb usually about 1 m high, all 



parts finely pubescent. Leaves simple, Hnear-oblong to oblong, sessile or 

 shortly petioled, obtuse, 4 to 10 cm long. Racemes terminal, 8 to 20 cm 

 long Flowers scattered, about 2.5 cm long. Calyx densely brown-pubes- 

 cent, the lobes long. Corolla yellow. Pods oblong, sessile, brown-pubia- 

 cent, about 8 cm lofig. 



Singalon, cultivated, fl. Apr.-June. A native of India, of recent intro- 

 duction in the Philippines and apparently spontaneous in some provmces. 



8. C. VERRUCOSA L. Bulailaua (Tag.). 



An erect, branched, somewhat pubescent or nearly glabrous herb 40 to 

 80 cm' high, the stems angled. Leaves simple, ovate, obtuse, 5 to 11 cm 

 long base acute, short-petioled, the stipules pfominent, leaf-like, semilunate, 



