88 LSOUMINOSJB. [TRIGOXELLA. 



5. TRIGONEL'LA, L. 



Herbs, often strongly scented. Leaves pinnately 3-foliolate ; nerves 

 terminating in teeth; stipules adnate to the petiole. Flowers solitary, 

 capitate, or in dense racemes, white, yellow, or blue. Calyx tubular, teeth 

 subeuual. Petals very persistent ; wings longer than the keel, the c laws 

 of both free from the staiuinal tube. Filaments not dilated, upper five or 

 nearly so ; anthers uniform. >'////<; glabrous, stigma terminal; ovules 

 many. Pod various in form, dehiscent in the British species, longer than 

 the calyx. DISTKIB. Europe, temp. Asia, N. and S. Africa, Australia; 

 species 50. ETYM. The old Greek name. 



1. T. ornithopodioi'des, DC. ; glabrous, prostrate, very slender, leaf- 

 lets obcordate, keel nearly as long as the wings. Trifolium, L. Aporan'- 

 tkus Trif olios' triim, Brornfield. 



Sandy heaths and gravelly places, rare, from the Forth and Clyde southwards ; 

 East of Ireland very rare ; fl. June-Aug. Annual or biennial, branching 

 from the base ; branches 2-8 in., slender. Lea/lets J- in., toothed, 

 strongly nerved ; petiole -1 in. ; stipules large, "ovate, long-acuminate. 

 Peduncles solitary, shorter than the petioles, axillary. 1-o-fiowered. Fln,>; ,-x 

 fa in., very shortly pedicelled, white and pink. Pod fc-fa in., linear-oblong, 

 slightly curved, obtuse, partially dehiscent, 6-8-seeded. DISTRIB. Den- 

 mark, France, Portugal, Italy, and Turkey. An anomalous species, on 

 account of the length of the keel ; habit of Trifolium siibterraneum. 



6. MEDICA GO, L. MEDICK. 



Herbs. Leaves pinuately 3-foliolate, nerves ending in teeth; stipules 

 adnate to the petiole. Flowers small, yellow or violet ; stipules small or 

 C). Calyx-teeth 5, nearly equal. Keel obtuse, shorter than the obloug 

 wings, not adnate to the stamens. Filaments not dilated, upper free ; 

 anthers uniform. Style subulate, glabrous, stigma subcapitate ; ovules 

 few or many. Pod spirally curved or coiled, very rarely falcate, often 

 spiny, rarely dehiscent. UISTRIB. Europe, W.Asia, N.Africa; speeds 

 40. ETYM. The Greek name. 



* J'> I'nudal. Pod deJiigcent, falcate, annular, or coiled info an op i. 

 many-seeded ; marginal neree 0. 



1. M. falcata, L. ; decumbent, flowers subcorymbose, pods linear 

 compressed curved or annular downy. 

 Gravel banks and waste sandy places in the E. counties ; an alien or deni/en, 



\\'<iix<m.; fl. June-July. Stems 6-24 in., diffuse. LeajleU .i-^i"., narr..w;\ 



linear, or obovate-oblong, toothed, notched and mucronate at the tip"; 



stipules large, subulate. Flowers fa in., shortly pedicelled. Pod ^ in. 



DISTRIB. Europe, N. Asia. 



Sub-sp. FALCA'TA proper ; flowers yellow, pod falcate. 

 Hub-sp. SA,VKS'THIS, Fries (sp.) ; flowers yellow then dark green, pod semicir- 



cular or annular. 



M. SATI'VA, L. ; erect, flowers racemose, pod with 2-3 coils, downy. 

 ^Purple Mcdick. 

 Hedges and fields, not indigenous; fl. May-July. Stfm 1-2 ft., fistula-, 



branched. Leajlets narrowly obovate-oblong, toothed, tip notched aud 



