218 COMPOSITAE, [Argyroxiphium. 
Tl. C. caudatus, H. B. K. — DO. Prod. V, 606. — An erect annual, 
1 ft. high, glabrous. Leaves pinnatisect, the segments obovate-oblong, 
dentate or more deeply cut. Ray-florets sterile, red, with trifid ligules. 
Disk-florets 10—20. chenes 9‘ long, scabrous-hispid at the angles, 
ned. 
6-aw 
i! sea gene and elsewhere; escaped from gardens, but well naturalized. 
A artes of Mexi 
20. pee ame De Cand. 
Heads large, many-flowered, heterogamous, radiate, the ray-fl. in one 
row, female, those of the disk RRL pea both fertile. Invol. broadly 
campanulate, its bracts in one row, equal, herbaceous, narrow, holdi 
the ray-achenes in their cavities. Receptacle convex, with a circle or 
ring of partially concrete paleae within the circle of ray- florets, representing 
a second longer involucre, pling naked. Ray-fl. ligulate, the broad 
spreading ligules 3-dentate isk-fl. tubular, the elongate limb little 
widening, 5-fid. Anthers ee at the base, appendiculate. Style- 
branches of disk-fl. linear, complanate, widening at their ends and hispi- 
dulous, with conical appendages. Achenes linear, 5-angular. Pappus of. 
5 short and broad, unequal, acute paleae, or in the ray-fl. truncate, 
coroniform. — Robust plants with a short and thick simple stem, crowde 
with numerous spirally arranged, dagger-shaped, entire, thick, longitudinally 
nerved, silky-tomentose or hispid leaves. Flower-heads large, with yellow 
disk and rose-purple ray, arranged in a terminal centripetal raceme or 
panicle. 
A Hawaiian Fre of the Subtribe Madieae, the representatives of which are con fined 
to the west ¢ of America and the Sandwich Islands, including also the cowie 
genus Wilkesia 
Leaves livers ® peduncles bracteate in the outer half; heads large, 
with darker ligules 1. A. Sandwicensé. 
Leaves greenish, narrower; peduncles practeate at the end; heads 
smaller, with paler ligules 2. A. virescens. 
1. A. Sandwicense, DC. Prod. y, 668, iad Mos Cinls. p. 27, tab. 
— Stem 2 or 3 inch. in diam., with a thin woody zone and large my 
short, soon tapering into a long pyramidal foliose raceme (or panicle) 4 to 
8 ft. high with numerous flower-heads. Leaves linear, 8—16’  5—6”; 
shortening toward the panicle, densely villous with silvery-silky appr 
wool. Peduncles 4—6‘ long, each supported by a leaf of equal length, 
glandular- aap bearing 2 to 4 bracts along its upper half. Heads 
nodding, less than 1‘ in diam. Invol. bracts viscous-villous, green, lan- 
ceolate, long = ple acuminate. Ray-fl. 12 to 16, with cuneate bi or 
trifid ligules of 5—6" in length. Receptacle ee 1/2‘ broad. Inner 
involucre in length. Achenes glabrous, 5—6” long, the radial say 
sho and curved, enclosed and exceeded by their bracts. Pappus 
