160 SYKGENESIA. SUPERFLUA. 



(ligenous to Mexico. Ons. Kacemes not virgatcd, panicu- 

 late, secund, nearly naked, and not exserted; peduncles 

 mostly 1-fioweied, calix with fewer bractes; flowers lar- 

 ger, peduncles equally pubescent, rays about 10. Recep- 

 tacle punctate, margins of the alveoli, in this as well as 

 in the prt^ceding pubescent. 



26. semperxnrens. Obs. Stem tall, erect and smooth; leaves 

 llnear-lauceolate, very acute, partly acuminate, subcar- 

 nose, smooth and entire, margin scabrous; racemes loose, 

 filiform, axillary, secund and suberect; peduncles squa- 

 mosa, pibe&ceni, longer than the calix; rays elongated, 5 

 or 6. Seed pubescent. 



t f Hacemei erect. 



27. * mpeciosa. Stem tall and smooth, simple or vlrgately 

 branched; leaves lanceolate, entire, somewhat carnosc, 

 tscabrous on the margin, the lower very broad, radical 

 ones subserrate; racemes terminal, erect and compound, 

 pubescent; peduncles mostly shorter than the calix; rays 

 i:longated about 5; seed smooth. Hab. In shady woods, 

 on the banks of the Schuylkill, also in New Jersey; near 

 Philadelphia, but rare. S. sempei^irens.M'ich. S. mteg-ri' 



folia? Persoon, 2. p. 449. Allied to S, petiolaris. Stem 

 often 6 feet high, smooth and sulcata. Lowest leaves a 

 fepan long, and 3 inches broad, irregularly and remotely 

 subserrate, upper leaves very entire, gradually diminish- 

 i;ig upwards, in dry and shady situations, membranaceous 

 and veined, in gardens subcarnose and smaller, with the 

 veins partly obliterated, racemes also num.erous, but always 

 rigid, terminal and erect. Flowers larger than the pre- 

 ceding, with the calix also coloured (which in the prece- 

 ding is green); rays bright yellow, unusually broad. The 

 t>eeds in this species are perfectly smooth, in our semper- 

 "Arent pubescent. This is one of the most ornamental 

 plants of the genus. 



28. paiicifosciilosa- 29- bicolor. oO. petiolaris. ol. strict a. 



32. virguia. Mich. Obs. Stem smooth and simple, at- 

 tenuated, summit racemose; raceme mostly solitary, com- 

 pound, peduncles erect, smooth, and filiform, squamose; 

 leaves smooth, lanceolate-oblong, partly obtuse, erect, dia- 

 phanously punctate, and scabrous on the margin,lower ones 

 subserrate, the upper small and entire. — In open swamps 

 around Wilmington, North Carolina. Stem remarkably 

 attenuated, more so than in the following, to which it is 

 nearly allied, 4 to 5 feet high; the leaves gradually dimin- 

 ishing upw^ards to 3 or 4 lines in length, and about 2 in 

 breadth; lowest leaves linear-lanceolate, 2 or 3 inches 

 long, remotely but regularly serrulate. Flowers spiaU. 



