e. Parenchyma cells of petiole. d, f, g. Epidermis, palisade cells and spongy tissue cells. h. Glandular trichomes. i. Crystals. 193. (Fig. 185.) STROPHANTUS. Strophantus. U. S. Fl. ex. 30. Tinct. 30. Strophantussamen, G. The seeds (awns removed) or Strophantus hispidus D. C., and S. Kombe O., Apocynaceæ. Pale brown, somewhat oily. Heavy, disagreeable. Very bitter. Epidermal cells brown, elongated, outer and inner walls thin, vertical walls thick, of which the longitudinal ones are cylindrically thickened, as seen in transverse section. Simple, single-celled, thinwalled, brown trichomes. Endosperm cells thin-walled, polygonal, bearing oil, proteid granules, aggregate crystals and some compound starch. Ash 5 per cent. Strophantus Kombe and other species and varieties of strophantus require further study. C Fig. 185. STROPHANTUS. a. Epidermis, vertical view. b. Epidermis and trichome, lateral or side view. c. Trichomes. d. Epidermis, transverse view. e. Endosperm tissue, showing oil and crystals. f. Outer tissue with granular proteid matter and starch. 194. (Fig. 186.) SUMBUL. Sumbul Root. U. S. Fl. ex. 60. Sumbulwurzel, Moschuswurzel, G. Tinct. 30. Racine de sumbul, Fr. The roots of Ferula Sumbul Hooker jr., Umbelliferæ. Light brown, resinous. Musk odor. Bitter, resinous (sticky). Rather abundant brown cork tissue. Very spongy parenchyma of thin-walled, loosely united cells bearing abundant, irregular masses of brownish resin. Below the cork a tissue of elongated brownish cells filled with brown coloring matter. Rather large brown ducts, varying in form from porous to reticulate and scalariform. Compare with the histology of the Russian and Indian varieties, and also with the roots of Dorema Amoniacum (false sumbul of India). |