PLANT TISSUES 



3 



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FIG. 45. Trichomes from different sources, i, Unicellular non-glandular 

 trichomes as seen growing out of epidermal cells of Senna; 2, uniseriate non- 

 glandular trichomes of Digitalis; 3, unicellular stellate trichomes from Deutzia 

 scabra; 4, unicellular twisted trichomes from lower epidermis of Eriodictyon; 5, 

 clavate non-glandular trichomes from scraping of epidermis of the fruits of 

 Rkus glabra; 6, 2-branched trichomes of Hyoscyamus muticus, a substitute for 

 Heixbane; 7, branched multicellular trichome of Marrubium; 8, glandular tri- 

 chomes from strobile of Humulus (Lupulin); 9,' glandular trichomes from leaves 

 of Digitalis purpurea; 10, aggregate, non-glandular trichomes of Kamala; n, 

 lateral view (to left) and vertical view (to right) of glandular trichomes of 

 Kamala; 12, vertical view (above) and profile view (below) of 8-celled glandular 

 hair from Mentha piper ita. All highly magnified. 



