Baldwinia. COMPOSITjE. 389 



nerveless erect chafly scales in a single series, as long as the corneous tube of 

 the corolla, and about the length of the achenium. — A perennial puberulent 

 lierb, with a simple or rarely somewhat branched striate stem, naked at the 

 summit. Leaves alternate, rather thick, minutely punctate, short, linear- 

 spatulate, sessile, entire. Head large, solitary. Corolla of the disk and ray 

 yellow, punctate with resinous dots. Anthers yellowish-while. 



B. vniflora (Nutt. ! 1. c.)—Ell. sh 2. p. 147 ; DC. ! fwclr. 5. p. 653. 

 Ceranthea, Le Corite ! mss. 



Margin of swamps, Virginia, near the coast, S. Carolina! Georgia! Flor- 

 ida! and Covington, Louisiana! July-Sept. — Stem about 2 feet high. 

 Leaves obscurely 1-nerved. Head, including the rays, nearly 2 inches in 

 diameter; the exterior involiicral scales oval, obtuse. Receptacle resembling 

 honey-comb ; the cells 4 lines in depth, including the (not stipitate) achenia 

 and pappus. — The remarkable genus Baldwinia (as it should be written) was 

 named in commemoration of the late Dr. Wm. Baldwin ; -a botanist of dis- 

 tinguished talents and indefatigable zeal,in whose early death natural science 

 in this country sustained a severe loss. The genus may well be restricted to 

 the present species, as proposed by Elliott; who, however, probably mistook 

 the appresSed silky hairs at the summit of the achenium for a fimbriate exte- 

 rior pappus- 

 ISO. ACTINOSPERMUM. Ell. sic. 2. p. 448, under Baldwinia. 



Heads (hemispherical in fruit) many-flowered; the ray-flowers 8-10, ligu- 

 late, neutral; those of the disk tubular, perfect. Involucre much shorter 

 than the disk ; the scales imbricated in about 2 series, lanceolate, somewhat 

 foliaceous, squarrose; the interior mucronate-acute. Proper receptacle 

 small, covered with cartilaginous subulate-cuspidate chaff', concreted and 

 forming somewhat hexangular cells, in which the achenia and pappus are 

 deeply iminersed. Rays narrowly cuneiform, elongated, 3-toothed at the 

 apex. Corolla of the disk with a somewhat expanded deeply 5-toothed limb 

 (the teeth glandular-puberulent), becoming indurated at the very base ; the 

 proper tube almost none. Style &c. as in Baldwinia. Achenia turbinate, 

 silky, stipitate, flat and 12-radiate at the summit, and crowned with a short 

 cup-shaped pappus of about 12 orbicular-obovate nerveless scales, which are 

 slightly thickened at the base. — An annual or biennial ? slender corymbosely 

 much branched herb, glabrous, or when young often hirsute with scattered 

 jointed hairs ; the slender branches naked at the summit, and terminated by 

 small but showy heads, with somewhat the aspect of a Coreopsis ; the bright 

 yellow rays 3-4 times the length of the involucre. Disk-corolla and anthers 

 yellow, sprinkled with resinous globules. Leaves very numerous, alternate 

 or irregularly scattered, often much crowded, narrowly linear, obtuse, taper- 

 ing to the base, sessile, thickish, impressed-punctate, nerveless. 



A. angustifolium. — Buphthalmum angustifolium, 5fm7cs/ herb.; Pursh ! 

 ft. 2. p.'56i. Baldwina multiflora, Nutt. ! gen. 2. p. 176 ; Ell. ! I. c. ; DC. 

 prodr. 5. p. 653. 



Sand hills of Georgia and Florida, Barlram ! Baldwin ! Mr. L. Le Conte ! 

 Dr. Chapman! Dr. Leavenworth! Aug.-Sepl. — Stem 1-3 feet high. 



