296 DIADELPHIA DECANDRIA. \JCL. XVII. 



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

 ascending; stigma obtuse. Legume tumid, with two longitudi- 

 nal 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 ob- 

 scurely 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. Pe- 

 rennial : 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. hypogl6ttis. Purple 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. Ft. 

 4th ed. p. 272. 1065. 



4. A. Uraltnsis. 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. campfstris. Yellowish Mountain Milk-vetch. Stem none ; scape 

 ascending ; legumes egg-shaped, inflated, hairy, erect ; leaflets 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. TRIFO'fJUM. 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 



