CRUDE DRUGS. 



623 



irregularly sinuate-lobed, the lobes acute ; upper surface dark 

 green, nearly glabrous, under surface yellowish-green, glabrous, 

 slightly pubescent (Fig. 287, D) on the veins, midrib dark brown, 



Fig. 269. Hyoscyamus muticus: A, leaf; B, portion of upper surface of leaf; C, 

 portion of lower surface; D, section of flower showing calyx (c), lobed corolla (p), stamens 

 inserted on corolla tube (s), ovary (o); E, portion of stalk with fruits showing cylindri- 

 cal calyx; F, pollen grains in diff'erent views; G, portion of xylem of stem showing trachese 

 (t) with bordered pores, wood fibers (w) with oblique simple pores; H, characteristic branch- 

 ing hairs found on the stem, leaves and calyx; K, crystals of calcium oxalate; L, seed with 

 epidermal cells having wavy walls, those at the edge being seen in section and showing that 

 the outer wall is not thickened. 



veins of the first order diverging from it at an angle of 45 to 

 65, dividing near the margin and the main branches passing into 

 the lobes ; petiole dark brown. 0.5 to 4.5 cm. long, circular in cross- 

 section ; texture fragile. Flowers solitary, pedicel 2 to 10 mm. 



