450 



SCIENTIFIC AND APPLIED PHARMACOGNOSY 



THE FLOWERS, which are sometimes intermixed with the drug, con- 

 sist of a cylindrical calyx tube surmounted by 5 small teeth; petals 

 oblong or obovate, adnate with the calyx tube; stamens 5, united 

 with the corolla; ovary superior, unilocular, having 3 long styles. 

 Fruit a loculicidally dehiscent capsule, having a number of ovoid or 



FIG. 196. Turnera aphrodisiaca: A, portion of the plant showing the small 

 serrate leaves. B, portion of twig showing the flower bud. C and D, the 

 flowers, the latter being in longitudinal section. E, ovary with three long 

 styles. F, longitudinal section through the ovary showing a number of the 

 ovules. G, the mature ovoid fruit. H, a crescent-shaped, reticulate seed, 

 having a small, thin, membranous arillus. K, stoma with subsidiary cells 

 parallel to the pore. L, transverse ^section through the leaf, showing upper 

 epidermis (e); lower epidermis (d), with 2 glandular hairs (g)', palisade cells 

 (P) ; and tracheae (T). J, diagrammatic section of a flower of T. ulmifolia. 

 B and J after Urban; the remainder after Gilg. 



crescent-shaped reticulate seeds, with a thin, yellowish-white, mem- 

 branous aril near the micropyle. 

 INNER STRUCTURE. See Fig. 196. 



