90 niADELPHIA. OCTAADRI.U 



oblong-ovate, acute. Hab. In sphagnose swampa from 

 Sussex county, Delaware, to Flcclda! Flowering- in July 

 and August. Obs. Stem about 12 inches high; stem leaves 

 about an inch long, of the same length nearly to the 

 summit of the stem, oblong-linear and somewhat obtiise; 

 the whole cor} mb citron yellow, in a dried state blackitrfi 

 green; corolla cristate as in the following specie?, though 

 very incons-picuously so. 



19. * citte?iuata. Perennial; stem tall, simple, terete, 

 and attenuated, summit corymbose, many-flowered; radi- 

 cal !eave«, spaihulate-lanceolate, acute, cauline subulate, 

 imequal; calleine wings connivcn^ elliptic-obkng, acute. 

 Hab. In grassy swamps fiom North Carolina to P'lorida, 

 very similar to the preceding, but much larger, from 2 

 to 3 feet high, hence Dr. Baldw} n called it P. pr^aJtn, but 

 as the following species is equally tall, :.nd many foreign 

 species much more so, I have chosen il;e present name 

 as expressive of the singulaily attenuated appearance oT 

 the stem, the flowers are of the same color as in P. co- 

 rymhosa. 



20. • BaUMvd. Perennial? Stem tall, sparingly and 

 virgately branched; flowers squarrosely capitate, capituii 

 corymbose, whitish; wings of the calix connivent, lanceo- 

 late, setaceously acuminate; radical leaves spathulale, 

 obtuse, cauline sublanceolate, acute. Hab. Near St. 

 Mary's in Florida — Dr. Hald^n^n, from whom I received 

 a specimen under the name of P. pfJycephaln. Obs. A 

 very singular and distinct spec'es. Sitni 2 to 3 feet high, 

 brar.clied from below the middle, blanches 2 lo5.> angu- 

 lar, summits cor)mbosely branched; leaves small and d s- 

 tant, smooth, alternate, seFsde, flowers greenish-white, 

 jmbricately capitulate, appearing squarrose from the 

 spreading setaceous points of the calix; corolla almost 

 perfectly beardless; capsule 2-celled, 2-seede(l, very mi- 

 nute, seed hirsute, and subglobcse, afier the manner of 

 the genus. 



I have not here adopted the artificial sections of thi& 

 genes, viz. those of the crhtate and beardless corolla, be. 

 cause they do not appear to exist in nature, judging fiom 

 a careful examination of the 20 species here enumerated^ 

 in which I find it impracticable to draw any definite line, 

 all possessing more or less evidently the filiform processe-s 

 of the carinate petal; in P. Senega,^ P. pxibescens, P. pnr- 

 purec, P. sa7igiit'j}ea and P. BaUlnini, it is indeed redu- 

 ced to the appearance of glanduloid excrescences, in all 

 the others it is more or less apparent and filiform, accord- 

 ing to the size of the corolla. 



Of this vast genu.s, contaioing more than 100 speclesj 



