140 STNGENESIA. ^B<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 Hymenopappus; scales or leaflets 

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

 ler, the larger oblong-elliptic, membranaceous, and whi ish- 

 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 somewhat 

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

 date towards the extremity, and externally pubescent. 

 Hab. On the banks of the Allamahah. — Ur. Baldwjn. 



549. MELANANTHERA. Michaux. 



Calix imbricate, Ipaflets ovate, appi*essetl, 

 subequal, i2ecepff/c/e paleaceous, scales carinatc, 

 tiie lower part embraciii]^ the florets. Pappus 

 consistinaj of 4 or 5 unequal unarmed awns. 



Herbaceous: leaves opposite; peduncle* 1-flowered, so- 

 litary, axillary andterniinal. 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 ^Yest India Islands. 



550. MARSHALLIA. mUd. Trattexikia. 



Per soon, 



Calix imbricate, scales sublanceolate, incum- 

 bent. Mecepta cle p^leaceona. Pappus ot 5 mem- 

 branaceous, acummate, nerveless scales. 



Herbaceous; leaves aUernate, entire, for the most part 

 longitudinally nerved, stem simple or branched, stems ai'id,. 

 branches terminating in 1-flowered peduncles; flowers 

 pale violet-purple, externally pubescent. Receptaculur 

 palex foliaceous, at length rigid, exserted; seed obconic, 

 pentangular, integument double, the exterior valvular, the 

 interior brownish and membraTiaceous. 



Species. I. M. lanceolata. 2. latifolia. 3. angiistifoUa, 

 Hab. From North Cnrolina to Floridaj in open swamps.— 

 A North American geotis* 



