DIADELPHIA— DECANDRIA. Ervum. 287 



10. V. bithyjiica. Rough-podded Purple Vetch. 



Flowers stalked, mostly solitary. Legumes upright, rough. 

 Leaflets two pair, lanceolate. Stipulas with lateral teeth. 



V. bithynica. Linn. Sp. PI. \0^S. Willd.v.Z.lWO. FLBr.774. 



Engl. Bot. V. 26. t. 1842. Jacq. Hort. Vind. v. 2. 69. t. 147. 



Allion. Pedem. v. 1 . 32.5. t. 26./. 2. Marsch. Taur-Cauc. v. 2. 1 63. 



Cracca floribus albis, foliis circa caulem denticulatis. Buxh. Cent. 3. 



25. <. 45,/. 2. 

 Aracus major, an Vicia Lathyroides, siliquis in eodem pediculo 



binis. Raii Hist. v. 3. 448. 

 Clymenum Bithynicunij siliqua singulari, flore rainore. Bcerh. Ind. 



Alt. V. 2. 43. 

 Lathyrus palustris, flore orobinemorensis verni, nondumdescriptus. 



Rupi). Jen. ed. 1. 367 •/. 

 In bushy places, on a gravelly soil, often near the sea. • 

 Near Doncaster, Yorkshire. Mr. Tojield. In woods near Clifton 

 upon Teme, Worcestershire. Dr. Stokes. Between Chocken- 

 hall and Sandling, in the same county. Rev. Dr. Abbot. In a 

 field half way between Weymouth and Portland ferry, near the 

 sea. Mr. Lambert. On the coasts of Dorsetshire and Hampshire. 

 Mr. Borrer. 

 Perennial. July, August. 



Root branching at the crown, furnished under ground with several 

 small fleshy knobs. Stems weak, leafy, angular, slightly branch- 

 ed, smooth, about 1 8 inches long, prostrate, unless supported 

 by the branched or simple tendrils. Leaflets 4, on the lowermost 

 footstalks but 2 ; elliptic-lanceolate, sometimes nearly linear ; 

 about li inch long, minutely pointed, entire, single-ribbed, with 

 many lateral, straight, oblique veins ; the under side somewhat 

 hairy. Stipulas variable in breadth, half-arrow-shaped, with 

 several deep, taper-pointed, fringed teeth. FL on solitary, 

 almost universally single-flowered, axillary stalks, shorter than 

 the leaves. CaZ. 'ribbed, tubular, hairy upwards, with very long, 

 taper-pointed, fringed, slightly unequal, teeth. Staiidard jpm- 

 plish. Keel and wings white, the former tipped with light violet, 

 the latter tinged with pale blue, both changing to a greenish 

 brown in 12 hours after the flower is gathered. Legumes erect, 

 broad, slightly tumid, reticulated with veins, rough at the sides, 

 and more densely at the margin, with short, rigid, tawny hairs. 

 Sefr{f^ or 6, globose, smooth, speckled with black and grey. 

 The i gma is truly that of a Vicia, though the habit rather an- 

 S7?r to Lathyrus, where Linnaeus first placed this species. 



^111 



et3()l. ERVUM. Tare. 



Lirm. Gen. 376. Juss. 360. Fl. Br. 77 f>. mild. v. 3. 1 1 12. Tourn. 

 t.22\. Lnm. t. 634. 



