GENISTA.] LEGUMINOSJ3. 85 



Upper filament free. 



Racemes short. Pod longer than calyx, curved dehiscent... 5. Trigonella. 



Racemes short. Pod usually spiral 6. Medicago. 



Racemes long. Pod short, indehiscent. Keel free ..../ 7. Melilotus. 



Flowers capitate. Pod short, 1-4-seeded. Keel adnate 8. Trifolium. 



SERIES 2. Leaves 5~ or multi-folio late, vriik a, terminal leaflet. 

 TKIBE III. LO'TE-ffi. Herbs or shrubs. Leaves pinnately 5-many-foliolate ; 



leaflets quite entire. Upper stamens free or not ; alternate filaments often 



dilated. Pod 2-valved, without a longitudinal septum. 



Calyx inflated, including the pod 9. Anthyllis. 



Calyx not inflated, pod exserted dehiscent 10. Lotus. 



TRIBE IV. GAIjEGE'.Z (sub-tribe ASTRAGALS'^;). Herbs or shrubs. Leaves 



pinnately 5-multi-foliolate ; leaflets quite entire. Upper stamen free. 



J'od 2-valved, turgid or flat with a longitudinal septum. 



Keel obtuse 11 . Astragalus. 



Keel beaked or with an incurved tip 12. Oxytropis. 



TRIBE V. HEDYSAR'.ffi. Herbs or shrubs. Leaves pinnately 3-multi- 



foliolate. Upper filament free. Pod indehiscent, of 1 or many 1-seeded 



joints. 



Pod cylindric, many-jointed 13. Ornithopus. 



Pod Hat, of many curved 1-seeded joints 14. Hippocrepis. 



Pod flat, hard, 1-seeded 15. Onobrychis. 



SERIES 3. Leaves abruptly pinnate (or leaflets 0) ; petiole ending in 



a tendril or point. 



TRIBE VI. VIC'IE.ffi. Herbs. Leaves pinnate ; petiole ending in a tendril 

 or point. Leaflets often toothed. Upper stamen free. Pod 2-valved. 



Style filiform, hairy below or all round 16. Vicia. 



Style flattened, hairy on the upper side only 17. Lathyrus. 



1. GENIS'TA, L. 



Shrubs, sometimes spinous. Leaves 1-foliolate in British species ; 

 stipules minute or 0. Flowers raceined, yellow, rarely white, bracteate. 

 Calyx shortly 2-lipped ; upper lip deeply 2-iid, lower shorter 3-toothed. 

 Wings oblong, gibbous at the base, adnate to the staminal tube, deflexed 

 after flowering. Filaments all united, tube entire ; anthers alternately 

 short and versatile, and long and basifixed. Style incurved, stigma 

 oblique ; ovules 2 or more. Pod 2-valved or indehiscent, 1 -celled. 

 DISTUIB. Europe, W. Asia, N. Africa ; species 70. ETYM. obscure. 



1. G. tincto'ria, L. ; unarmed, leaflet oblong or lanceolate nearly 

 glabrous, racemes slender, keel and pod glabrous. Dyers' Greenweed. 

 Meadows and fields, from Wigton and Edinburgh southwards ; rare in Scot- 

 land ; Co. Dublin only in Ireland ; fl. July-Sept. Stems 1-2 ft., branched, 

 rigid, striate. Leajtets ^-1 in., appressed, ciliate ; stipules minute, subulate. 

 Flvmrs 2 in., yellow. Calyx deciduous above the base ; teeth acuminate. 

 Pod l-l in., compressed, 5-]0-seeded. DISTRIB. Europe, from Gothland 

 southwards, N. Asia ; introd. in N. America. Yields a yellow dye. 

 VAU. 1, yla'trra, Syme ; glabrous, branches erect or ascending. VAR. 2, 

 hitmifu'sa, Syme ; branches decumbent hairy as are the pedicels calyx and 

 pod. Kynauce Cove. 



