MEDICAGO.] LEGUMINOS^. 95 



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



Lucerne. 



Hedges and fields, not indigenous ; fl. May-July. Stem 1-2 ft., fistular, 

 branched. Leaflets narrowly ohovate-oblong, toothed, tip notched and 

 apiculate. Flowers J-J in., in a short dense raceme, yellow blue or purple ; 

 peduncles longer than the leaves, pedicels very short. Pod 5 in. diam. 

 DISTRIB. E. Mediterranean region ; naturalized elsewhere. 



** Annual or biennial. Pod indehiscent, reniform, tip coiled, smooth, \-seeded ; 

 marginal nerve 0. 



2. M. lupuli'na, L. ; procumbent, flowers in ovoid heads, pod reticulate. 

 Black Medick. 



Waste places and fields, N. to Shetlands ; ascends in Derby to 1,200 ft.; Ire- 

 land ; Channel Islands ; fl. May- Aug. Pubescent or glabrous, Stems 6-24 in., 

 much branched. Leaflets f in., obovate, toothed, apiculate ; petiole very 

 short; stipules ^-cordate. Flowers ^ in., peduncles longer than the petioles ; 

 pedicels very short. Pods J-| in., black. DISTRIB. Europe, N. Africa, 

 temp. Asia, India; naturalized elsewhere. 



*** Annual. Pod indehiscent, coiled into a closed helix, many-seeded, bordered 

 with spines or tubercles, marginal nerve strong. (Stems prostrate. Leajlets 

 toothed. Peduncles few-fowered. Flowers yellow; calyx-teeth subulate, 

 incurved.} 



3. M. denticula'ta, Willd. ; nearly glabrous, stipules laciniate, pod 

 flat deeply reticulate with 2 or 3 coils and a double row of spines. 



E. and S. counties from York and Norfolk to Cornwall, casual elsewhere; (a 

 denizen? Wats.); Ireland; Channel Islands ; fl. May-Aug. Stem 6-24 in., 

 furrowed. Leajlets J 1 in. Flowers in., umbelled, yellow; pedicels very 

 short. Pod \ in. diam. DISTRIB. Mid. and S. Europe, N. Africa, N. Asia, 

 India; introd. in N. America. 



M. denticula'ta proper ; spines subulate half the diameter of the pod. YAR. 

 M . apicula'ta,-~\\\\\(i. ; spines of pod very short. YAR. M. lappa'cea, Larak. ; 

 spines longer than the semi-diameter of the subglobose pod. Bedford. 



4. M. macula'ta, Sibth. ; nearly glabrous, stipules ^-cordate toothed, 

 pod subglobose faintly reticulate with 3-5 coils and a double row of long 

 curved spines. 



Pastures and hedgebanks, f rom Northumberland southd.; S. Ireland ; Channel 

 Islands ; fl. May-Aug Stems 1-2 ft., numerous. Leajlets J-l in., obovate 

 obcordate or cuneate, with often a black central spot ; stipules herbaceous ; 

 petiole hairy. Flowers & in., yellow. Pod \ in. broad ; margin with 4 ridges. 

 DISTRIB. Europe, N. Africa, AT. Asia ; introd. in N. America. 



5. M. min'ima, Desr. ; downy, stipules |-cordate faintly toothed, pod 

 subglobose faintly reticulate with 4 or 5 coils and a double-row of close-set 

 hooked spines. 



Sandy fields, rare ; E. counties, Norfolk to Kent ; Channel Islands ; fl. May- 

 July. Stems 610 in., very many, rigid, prostrate. Leaflets ^ | in., from 

 narrowly to very broadly obovate. Flowers % in. Pod ^ in. diam., margin 

 keeled. DISTRIB. From Denmark southd., N. Africa, AT. Asia, Kashmir. 



