affinity, as a species, is undoubtedly with C. auriculata, 
with which Mr. Exuiorr appears, though doubtfully, to 
have united it. It differs from that plant in its miich 
smaller size, thinner, and usually more divided leaves, with 
broader and blunter segments, in its much larger flowers, 
and above all, the truly annual duration of the root. 
Descr. Root annual. Stem a foot, or a foot and a half 
high, branched, varying exceedingly in hairiness, sometimes 
thickly clothed with rather long, spreading hairs, at other 
times quite glabrous. Leaves generally glabrous, petio- 
lated, extremely variable, sometimes obovato-spathulate, 
and quite undivided, sometimes ternate, with the two late- 
ral segments or leaflets smaller, at other times pinnatifid, 
and not rarely even bipinnate, the leaflets obovate, or oval 
and very obtuse, those of the lowermost leaves almost orbi- 
cular. Peduncles terminal and axillary, long, slender, gla- 
brous. Involucre double, small; both monophyllous and 
about eight-partite ; the outer lax with linear, green seg- 
ments : the inner with broadly-elliptic, brown, glossy, mem- 
branaceous ones. Filorets of the ray eight, very large, 
obovate, spreading, bright orange, with a dark brown spot 
at the very base, neuter, cut at the extremity into five, 
large, unequal teeth, the two middle ones the longest. 
Germen compressed, abortive. Dise small; its florets dark 
purple, black above, the anthers and styles and tips of the 
anthers alone orange. Germen ovate, compressed, slightly 
curved. Achenia oval, slightly curved, minutely dotted, 
the inner face with a depressed disk. Receptacle chafty ; 
the scales long, lanceolato-subulate, dark purple-brown, 
pale below. 
Fig. 1. Floret of the Ray. 2. Floret of the Disk 3. Scale of the Re- 
ceptacle. 4. Achenia: magnified. 
ERS AE He gy ee ee aa REE oot 
