The species is named by Dr. Cosson after H. de 
Perraudiére, one of his companions during an expedition 
into the mountains of Eastern Khabylie in 1861, when the 
species was discovered. It flowers early in June. 
Dusor. Sparsely clothed with spreading lax scattered 
hairs. Leaves 3-foliolate, petiole slender, rigid, flexuous, a 
span long and under; leaflets rigid, coriaceous, two to three 
inches long by one and a half to two broad, ovate-cordate 
or orbicular-ovate, acute, acutely closely ciliate-toothed, basal 
sinus deep narrow, the rounded basal lobes sometimes over- 
lapping, rigid, when young of a fine red bronze colour shot 
with green; petiolules one to one and a half inch long. Scape 
equalling the leaves, springing directly from the root-stock, 
many-flowered; raceme glandular-pubescent, twelve- to 
twenty-flowered ; pedicels slender, one-third to two-thirds 
of an inch long, horizontal; bracts small, caducous. Flowers 
bright yellow, three-quarters to two-thirds of an inch in 
diameter. Ezternal sepals minute, oblong, caducous ; inner 
orbicular or broadly oblong, horizontally spreading, broadly 
_Imbricate. Petals with a cucullate toothed lamina; spur 
stout, obtuse, cylindric, incurved, about as long as the blade. 
Stamens twice as long as the petals; anthers narrowly 
linear. Ovary cylindric, undulate on the ventral face ; style _ 
incurved.—J. D. H. 
Fig. 1, Petal; 2, stamens; 3, ovary :—all enlarged. 
