PAPAVERACE. 108 
Upper petal larger than the others, folded longitudinally and 
keeled, enlarged and somewhat spreading at the apex, with a short, 
thick incurved spur at the base, not one third the length of the 
rest of the petal; lower petal keeled, spatulate; lateral petals 
oblanceolate. Pods oblong, compressed, beaded, mucronate by 
the persistence of the base of the style. Seeds 3 to 6, black and 
shining, thickly covered with small round tubercles, which however 
are scarcely discernible by the naked eye; crest of the raphe large, 
white, lacerate, dentate, spreading. Plant yellowish green, slightly 
glaucous. Stems brittle and somewhat succulent. 
Yellow Fumitory, or Corydalis. 
French, Corydalis Jaune. 
The specific name is from the Latin word Juteus, yellow. 
SPECIES WI—CORYDALIS CLAVICULATA. D.C. 
Puate LXX.* 
Reich, Ic. Fl. Germ. et Helv. Vol. III. Pap. Tab. V. Fig. 4457. 
Fumaria claviculata, Linn. Sm. Eng. Bot. ed. i. No. 103 ; and Eng, FI. Vol. TIT. p. 254, 
No rootstock. Stems leafy. Leaves pinnate, with the leaflets 
ternate, all lateral; the secondary lateral leaflets usually, and the 
terminal one occasionally bijugate, the common petiole terminating 
in a branched tendril. Peduncles shorter than the leaves opposite 
to which they spring. Pedicels shorter than the flowers and pods. 
Seeds shining, appearing granulated under a lens, with a very 
small membranous crest. 
In woods, bushy places, sandy ground, and thatched roofs. 
Sparingly but widely distributed throughout Britain, but becoming 
scarcer towards the west and north of Scotland. 
England, Scotland, Ireland. Annual. Summer, Autumn. 
Stems weak, diffusely branched, trailing or climbing. Leaves 
stalked, with 3 or 4 pairs of distant, compound, ternate leaflets ; 
leaflets towards: the base of the leaf often appearing quinate, from 
the shortness of the stalks of the elliptical entire secondary leaflets ; 
those of the upper portion of the leaf simply ternate, and gradu- 
ally diminishing in width till they become mere branches of the 
tendril. Racemes disposed as in the last species, but on very much 
shorter peduncles. Bracts oblong, cuspidate, longer than the pedi- 
cels. Flowers resembling those of C. lutea, but only about 4 inch 
long, pale straw colour. Pods small, about ¢ inch long, exceeding 
the pedicels, elliptical, oblong, compressed, beaded, mucronate by 
the persistence of the short base of the style. (The style is usu- 
ally described as wholly deciduous, but I have not found this to be 
* The Plate is E. B. 103. 
