S^ POLYANDRIA. MONOGYNIA. 



flowering' in March and April, n. v. A smaller species 

 than the following-, the whole plant somewhat g-laucous, 

 scattered with diaphanous hairs and the peduncles often 

 proliferous. 



2. *petiolatum Leaves ample, smooth, upon long- peti- 

 oles, pinnatifidly lobcd, lobes 5 to 7, with larg^e angular 

 indentures. Hab. In veiy shady woods on the banks 

 of the Ohio, abundant; flowering from the latter end of 

 May to July. Obs Koot perennial. Stem subquadran- 

 gular 2-leaved, rarely »"; 12 to 18 inches high. Petioles 

 often nearly the length of the leaves. Leaves large, 

 about 8 inches long- and 6 v.'ide; smooth and glaucous 

 beneath; veins on the under side subpilose, sinuately pin- 

 natifid, 5 to 7 lobed, lobes large, angularly and inclsely 

 tootiied, terminal lobe partly confluent, often somewhiit 

 trifid. Peduncles ag-gregated, about 3 inches long, pilose, 

 arising from the centre of the stem, sitbcymose, c\me 

 closely sessile. Calix pilose, abruptly acuminate, 2-lcav- 

 ed. Petals 4, roimdisb, cur.eate towards the base, deep 

 yellow, nearly as larg-e as those of Glauciv.m luteiim. 

 Style more than half the length of t!ie germ, (about 2 

 lines), yellow, s'igma capitate, 4-lobed. Capsule elliptic, 

 or oblong'-elliptic, turgid, and densely setose, coniaii'lng 

 many seeds, valves 4, thickljih, buisting and becoming 

 revolute. Receptacle similar to that of Argemone, ap- 

 plied to the margin of the valves and connected with the 

 persistent style. Seeds excavalcly jjunctate, and longi- 

 tudinally crested at the hilum, but not striated, brown 

 and smooth; albumen of the seed white and oily, envelop- 

 ing the minute embrvon. — These 2 species possess no 

 aflSnity which I can perceive to Sangiiinaria more than to 

 the rest of the order, but they are distinctly allied to 

 Chelidonhun. 



A genus hitherto peculiar to the western parts of the 

 United States. Papaver cumbricum of Europe appears, 

 hov.ever, to belong to this genus, with whicii it agr.-es 

 almost exactly in habit, but tiie stem is branched, the 

 stigma obsoletely 5-lobed, and the capsule smooth, but is 

 it not valvular? 



362. AIIGEMONE. L. (Prickly Poppy.) 



Calix 3-lcaved, deciduous. Tetals 6. >S^%- 

 ma sessile, capitate, iobed. Capsule superior, 

 with 3 to 6 angles, semivalvular, valves 3 to 6. 

 Receptacle filiform marginal, persistent. tSccds 

 globose striated aud punctured. ^ 



