DIDYf^AMIA. ANGIOSPERMIA. 49 



Stamina scarcely unequal, subsessile, inserted 

 near the orifice; anthers oblong, naked. Stijle 

 declinate. Capsule veiitricose-ovate, afutc, 2- 

 celled, 2-valved, opening at the summit. 



Herbaceous plants with opposite pinnatifid leaves, and 

 yellow oppositely disposed flowers; lobes of the corolla 

 rounded and entire, orifice and short tube internally pu- 

 bescent; filaments scarcely any, pubescent, anthers most- 

 ly smooth, oblontr, and nearly equal, 2-celled, opening lon- 

 gitudinally. In one, if not all of the species, tliere exists 

 an imperfect fifth stamen, thus pointing- out the affinity 

 of this genus to Cclaia and Verbascum and so to the natu- 

 ral order of SoLANACEiE. Capsule veniricose-ovate, acute, 

 and compressed at the summit, partly 4-lobed, 2-celled, 

 somewhat 4-vaIved, being readily separable in the line of 

 the medial coriaceous dissepiments; seminal receptacles 2, 

 round, small, and pendulous from the centre of the dis- 

 sepiments, neither compressed nor marginated as in the 

 preceding genus. Seeds angular, with alated margins. 



Species. I. S. * macrophylla. Stem tall and branched; 

 leaves large, nearly smooth, lower ones subpinnalifid or 

 deeply toothed, tlie upper lanceolate and entire; flowers 

 subsessile, shortly campanulate, orifice and tube densely 

 lanuginous; stamina scarcely exserted. Hab. In shady allu- 

 vial soils on the banks of the Little Miami, (Ohio,) near 

 the town of Lebanon. Flowering in July. A very dis- 

 tinct species much resembling Gerardlafava in herbage, 

 4 or 5 feet high, distinctly connecting this genus vvitli 

 the preceding, and indicating by its disparity with the 

 following species, the probable existence of several more 

 in some of the unexplored recesses of North or South 

 America. Leaves Irom 3 to 6 inches long, attenuated to- 

 wards the petiole, which is short. Calix only divided 

 about half way down, segments partly ovate and often fb- 

 liaceous. Corolla yellow, with i. distinct tube, about the 

 size of that of Verbascum Thctpsiis, but more like a Cera?-' 

 dia; border deeply 5-parted, lobes rounded, orifice and 

 tube filled with a matted wooily pubescence. Stamina al- 

 most equal, oblong, and quite smootl); towards the base 

 of the tube there is a fifth stamen often almost perfect. 

 Stigma subcupitate. (-apsule small, ventricosc, with a 

 compressed point. Receptacles 2, roundish, dissepiment 

 bipartile. A hardy and curious plant, well worth cultiva- 

 ting. 



2. pectinata. Ph. Obs. Lxtremely branched; leaves 

 small, pmnatifid, segments simple, linear, terminal one 

 VOL. II. E 



