296 DIADELPHIA DECANDRIA. [ci/. XVII- 



roundish. Germen oblong, compressed. Style awl-shaped, as- 

 cending ; stigma obtuse. Legume tumid, with two longitudinal 

 cells. Seeds one or more, kidney-shaped. Named astragalus, 

 the back-bone, in allusion to the knotted root of one species. 



361. 



1. A. glycyphy'llos. Sweet Milk-vetch. Stem prostrate ; legumes 

 obscurely three-cornered, curved, smooth ; leaves longer than the 



flower-stalks ; leaflets oval. Stems two or three feet long : nearly 



smooth : flowers pale-yellow, in egg-shaped spikes, on short axillar 

 stalks. Perennial: flowers in June: grows in woods, thickets, and 

 pastures, in gravelly -soil : frequent in England; rare in Scotland. 

 Eng. Bot. vol. iii. pi. 203. Eng. FL vol. iii. p. 294. 1063. 



2. A. hypogUttis. Piirple Mountain Milk-vetch. Stem prostrate ; 

 flowers in roundish heads ; legumes egg-shaped, compressed, hairy, 



hooked at the point ; leaflets obtuse. Stems from two to six 



inches long : flowers purplish-blue, variegated with white, in stalked 

 axillar heads. Perennial : flowers in June and July : grows in dry 

 pastures : frequent ; not uncommon in Scotland, near the sea. 

 Eng. Bot. vol. iv. pi. 274. Eng. FL vol. iii. p. 294. 1064. 



3. A. alpinus. Stems procumbent, branches and leaves downy ; 

 stipules egg-shaped ; flowers in a dense cluster, drooping ; legumes 



stalked, pendulous, elliptical, attenuated at either end. Root 



branched, slender : stems slender, branched, procumbent and 

 smooth at the base : down of the branches and leaves adpressed : 

 flowers eight to fourteen, with the calyx green, the corolla white, 

 tipped with light-purple. Perennial : flowers in July : discovered 

 by Mr. Brand on a cliff near the head of Glen Dole, Clova, in 1831. 

 Eng. Bot. Suppl. pi. 2717. Brit. FL 4th ed. p. 272. 1065. 



4. A. Uralensis. Hairy Mountain Milk-vetch. Stem none ; flower- 

 stalk erect, longer than the leaves ; legumes oblong, pointed, hairy, 



erect ; leaflets egg-shaped, acute, covered with silky hairs. 



Flowers bluish-purple, in round dense heads. Perennial : flowers 

 in July : grows in dry mountain pastures in Scotland : rare. Eng. 

 Bot. vol. vii. pi. 466. Eng. FL vol. iii. p. 295. 1066. 



5. A. campestris. Yellowish Mountain Milk-vetch. Stem none ; 

 scape ascending ; legumes egg-shaped, inflated, hairy, erect ; leaf- 

 lets lance-shaped, acute, somewhat hairy. Flowers yellowish, 



the keel and wings tinged with purple. Perennial : flowers in July : 

 grows on high rocks in Scotland : very rare. Clova Mountains, 

 Forfarshire. Eng. Bot. vol. xxxvi. pi. 2522. Eng. FL vol. iii. p. 296. 



1067. 



17. TKLFO'LIUM. TREFOIL. CLOVER. 



'Calyx inferior, tubular, five-toothed, permanent. Corolla of 

 four petals, all more or less united by their long claws, generally 

 permanent, withering ; standard reflected ; wings oblong, shorter 

 than the standard ; keel of one petal, shorter than the wings. 

 Filaments ten, nine united into a compressed tube, the other 

 hair-like, separate ; anthers roundish. Germen oblong. Style 

 awl-shaped, curved upwards ; stigma simple, smooth. Legume 

 short, membranous, one-valved, one-celled, not bursting, hardly 



