140 STNGENESIA. JE<IUALIS. 



inches long and naked. Calix from its spreading and the 

 minuteness of the base or receptacle, resembling an invo- 

 lucrum muck more than in Hymempappus; scales or leaflets 

 disposed partly in 2 rows, from 12 to 15, the exterior smal- 

 ler, the larger oblong-elliptic, membranaceous, and whitish. 

 Flosculi numerous; the tube pubescent, border campanu- 

 late, 5-cleft; segments long, linear and reflected. Tube of 

 the stamina entire at the base, exserted. Style bifid, 

 scarcely exserted; stigmas linear-oblong, pubescent. Seed 

 blackish, subquadrangular; inversely conic, attenuated 

 downwards, a little scabrous but not villous, about 2 lines 

 long; pappus 12 to 14 leaved, paleaceous, leaflets linear- 

 lanceolate, exactly the length of the seed, and somewjiat 

 lacerate, having a rigid setaceous nerve, naked or cuspi- 

 date towards the extremity, and externally pubescent. 

 Hab. On the banks of the Altamahah. — Dr. Baldwyn. 



549. ME LAN ANTHER A. Michaux. 



Calix imbricate, leaflets ovate, appressedy 

 subequal. Bccej?fac/e paleaceous, scales carinate, 

 the lower part embracing the florets. Pappus 

 consisting of 4 or 5 unequal unarmed awns. 



Herbaceous: leaves opposite; peduncles 1-flowered, so- 

 litary, axillary and terminal. Florets white, stamina near- 

 ly black. 



Species. l.M. hastata. Leaves hastately 3-lobed. Hab. 

 Abundant round Savannah in Georgia, growing in wastes 

 as if merely naturalized. — A second species is noticed by 

 Michaux as indigenous to the West India Islands. 



550. MARSHALLIA. Willd. Trattenikia. 



Persoon, 



Calix imbricate, scales sublanceolate, incum- 

 bent. Receptacle paleaceous. Pappiis of 5 mem- 

 branaceous, acuminate, nerveless scales. 



Herbaceous; leaves alternate, entire, for the most part 

 longitudinally nerved; stem simple or branched, stems arid, 

 branches terminating in l-flowered peduncles; flowers 

 pale violet-purple, externally pubescent. Receptacular 

 palese foUaceous, at length rigid, exserted; seed obconic, 

 pentangular, integument double, the exterior valvular, the 

 interior brownish and membranaceous. 



Species. 1. M. lanceolata. 2. latifoUa. 3. angustifoUa. 

 Hab. From Nortli Carolina to Floridaj in open SWamps.— 

 A North American genus. 



