23. LEGUMINOS^E. 45 



6. MEDICAGO. Medick 



1. M. LUPULIXA, L. Black-Medick, Non-such. Stems pro- 

 cumbent or spreading, leaflets roundish obovate, cimeate at the 

 base. Stipules broad, slightly denticulate acuminate. Fl. in 

 heads J of an inch across, clear bright yellow. Legume black 

 when ripe, kidney-shaped, of 1 turn. 



Very common. In cultivated and waste ground. (B) A. 5 8. 



* 2. M. SATfvA, L. Pur pie- Medick, Lucerne. Stem hollow, 

 erect, much branched. Le. stalked, leaflets elliptical or obovate, 

 denticulate at the apex. Stipules lanceolate-subulate. Fl. in 

 axillary racemose heads, bluish purple, rarely yellow. Legume 

 spirally twisted of 2| turns, compressed, downy. 



Not common. Banks of the railway at Cambuslang; below Govan. P. 67. 

 Not indigenous. 



7. MELILOTUS. Melilot. 



* M. OFFICINALIS, L. Common Yellow- Helllot. Stem erect, 

 branched, 2 3 ft. high. Leaflets of the lower le. obovate, of the 

 upper elliptical, all serrate. Racemes axillary, on long stalks. 

 Fl. deep yellow, more than twice the length of the cal. Legume 

 not distinctly veined or slightly rugose, hairy; seeds 1 or 2. 

 Fragrant when drying. 



Hare. " Road side between Rutherglen and Farme," Pair. Banks of the Forth 

 and Clyde Canal; beyond Tradeston on rubbish, apparently introduced. (E) 

 B. P. 68. 



8. TRIFOLIUM. Glover, Trefoil. 



A. Flowers purple or white. 



1. T. KEPENS, D. White Clover, Dutch Clover. Stems creep- 

 i>Kj, 3 12 in. long. Leaflets obcordate, serrulate, rounded or 

 slightly notched at the apex, often with a horse-shoe mark in the 

 centre. Stipules ovate, abruptly cuspidate. Fl. heads on long 

 axillary peduncles, longer than the leaves. Fl. white or tinged 

 with pink. Cal. teeth unequal, with membranous edges, the 2 

 posterior ones nearly close. Pedicels reflexed after flowering. 



Very common. In pastures and waste places. (B) P. 5 9. 



* T. HY'BRIDUM, L. AlsiJce-clover. Now frequently culti- 

 vated, and replacing the white clover. Stems ascending. Cal. 

 teeth nearly equal, with scarcely any membrane on the edge r 

 the 2 posterior ones ivide apart. Fl. white or piukish. Seeds 

 dark green or brown. 



2. T. PRATENSE, L. Common Purple-Clover. Stems erect or 

 somewhat decumbent, 1 2 ft. high. Leaflets oval or elliptical ; 

 lower ones emarginate, denticulate or nearly entire. Stipules 



