SYNGENESIA— POLYGAM.-.^QU. Prenanthes. 347 



Engl. Bot. V. 10. 1. 707. Dicks. U. Sicc.fasc. 17.16. Jacq. Austr. 

 t.250. 



L. ti. 13. Hall. Hist.v. 1.7. 



L. sylvestris minima. Rail Sijn. 162. Cant. 83. 



L. sylvestris altera, angusto saligno folio, costa albicante. Rupp. 

 Jen. ed. Hall. 207. t.4. 



L. sylvestris annua, costa spinosa, folio angustissimo glauco. Mo- 

 ris, v. 3. 58. sect. 7- t.e.f. 18. 



Chondrilla viscosa humilis. Bauh. Pin. 130. Prodr. 68./. Ger. 

 Em. 287. 



Endivia minor lactucina spinosa. Barrel. Ic. 1. 136. 



Small Jagged Lettuce. Petiv. H. Brit. 1. 15./. 4. 



In chalky waste ground, or about salt marshes. 



Near Cambridge, Ray. About Pancras church. T. WilUsel. Be- 

 hind the Small-pox hospital. Sir J. Banks. In shady lanes in 

 Dorsetshire, but rare. Dr. Pulteney. At Southend, Essex. Rev. 

 R. B. Francis. In marshes in Kent. Dickson. 



Biennial. August. 



^Vhole plant very slender. Stem 2 feet high, wavy, pale brown or 

 whitish, somewhat branched, leafy throughout, /.eaues glau- 

 cous, smooth except the mid-rib beneath, entire at the edges, 

 sessile, very narrow, acute, clasping at the base ; some linear ; 

 others hastate j a few of the largest deeply pinnatifid. Fl. in 

 small alternate tufts composing long clusters. Cal. glaucous. 

 Cor. very small, pale yellow, open in sunshine only, and soon 

 fading. Down rough. 



The mid-rib is occasionally smooth on both sides. In qualities this 

 species most resembles the last. 



374. PRENANTHES. Wall-lettuce. 



Linn. Gen. 40 1 . Juss. 1 68. FL Br. 82 1 . Faill. M^m. de VAc. des Sc. 

 717./. 2. Gcertn.t.]58. 



Commofi Cal. cylindrical, smooth, double ; the innermost of 

 as many linear, equal scales as there are florets ; outer of 

 a few very short unequal ones at the base. Co?-, com- 

 pound, of a simple row of perfect, equal, ligulate, abrupt, 

 4- or 5-toothed Jiorels. Filam. capillary. A)ith.^ in a 

 slender cylindrical tube. G^'r???. oblong. %Z^ capillary, 

 prominent. Stigm. 2, revolute. Seed-vessel none, except 

 the converging calyx. Seed obovate-oblong, furrowed or 

 angular. Domi capillary, roughish, nearly or quite ses- 

 sile. Recejpt. naked, very narrow. 



Annual or perennial, milky, smooth herbs, various mfoliagey 

 with upright panicled stems, and small yellow, purple, or 

 wYnieJloivers. 



