ORDER LXVm. COMPOSITiE. 390 



6. L. brevifo'lia, (Nutt.) Fitem glabrous below, pubescent at the 

 Bumniit. X(?av^s entire ; the lower ones spatulate, upper ones lanceo- 

 late, decurrent. — North Carolina and Alabama. 



6. L. brachypo'da, (T. &, G.) Stan leaf}-, puljescenf, or glabrous 

 below, corymbose at the summit. Leaven lanceolate, entire or denticu- 

 late, decurrent; scales of the involucre shorter than the disk. Acliniia 

 hairy on the angles. — Yellow. Damp soils. K Car. and Flor. 1 — 3 feet. 



Genus LXIV.— BALDWIN'IA. Nutt. 

 (In honor of Dr. Baldwin.) 



Involucre many-leaved, imbricate, squarrose ; ray florets neu- 

 tral, those of the disk perfect. Receptacle conve.x, pitted. Seeds 

 immersed in the receptacle. Pappus membranaceous, consist- 

 ing of 10 acute leaves. 



1. B. uniflo'ea, (Nutt.) Stem simple, slightly angled, pubescent. 

 Leaves obovate, tapering at the base, narrow, entire, pubescent when 

 young ; involucre squarrose, with the leaflets ovate, the interior mucro- 

 nate ; ray florets numerous, pubescent, 3-toothed at the summit. Seed 

 hairy, enlarged toward the summit ; pappus consisting of acute, mem- 

 branaceous scales. — Yellow. If. July — Sept. Damp soils. Middle 

 Car. and Geo. 1 — 2 feet. 



Genus LXV.— ACTINOSPER'MUM. Ell. 



(From aktin, a ray, and sperma, a seed.) 



Heads many-flowered ; ray florets 8 — 10, neutral ; those of 

 the disk perfect. Involucre shorter than the disk ; scales in 2 

 series, somewhat foliaceous. Receptacle with subulate chaff, 

 united together. Achenia turbinate, silky, 12-radiate at the 

 summit. 



1. A. angustifo'lium, (T. <fe G.) {Baldwinia multiflora, Nutt.) Stem 

 glabrous, much branched, terete. Leaves linear, glabrous, sessile, alter- 

 nate. Flowers at the extremities of the branches; involucre imbricate, 

 many-leaved, glandular, oval ; ray florets small. Seed enlarged at the 

 summit, pubescent ; pappus with numerous scales, expanding, obtuse. — 

 Yellow. If. Sept. — Oct. Middle and Southern Geo. 2—3 feet. 



Genus LXVL— MARSHAL'LIA. Schreb. 

 (In honor of Ilunipbrey Marshall.) 



Involucre imbricate ; florets all perfect, tubular. Receptacle 

 ihaffy. Pajypus consisting of 5 membranaceous scales. 



1. M. latifo'lta, (Pursh.) Stem leafy, branched above, glabrous. 

 Leaves sessile, ovate lanceolate ; involucre with acute, rigid scales ; pap- 

 pus tawny. — Purple. May — June. Mountains. 1 foot, 



2. M. lanceola'ta, (Pursh.) Stem erect, simple, striate, pubescent 

 toward the summit. Radical leaves obovate ; cauline ones lanceolate, 

 all glabrous, entire, attenuate at the base, dilated at the stem, and 

 clasping it. Flowers terminal ; involucre ranny-leaved, with membra- 



