714 SCIENTIFIC AND APPLIED PHARMACOGNOSY 



B. IN MONOCLINIC PRISMS. Continued. 



b. Only non-glandular hairs present. 



Characteristic stone cells 16. Cardamomum (Ceylon) 



Crystal fibers 17. Hamamelidis Folia 



Fragments reddish with alkalies 18. Senna 



Non-glandular hairs few 19. Uva Ursi 



c. Glandular and non-glandular hairs wanting. 



Epidermal cells with papillae 20. Coca 



Few fragments of tissues 21. Guaiacum 



Few crystal fibers and non-glandular hairs 22. Uva Ursi 



C. IN CRYSTAL FIBERS. 



Rosette-shaped crystals numerous 23. Granatum 



Crystal fibers few 24. Uva Ursi 



D. IN SPHENOIDAL MICRO-CRYSTALS. 



a. With hairs. 



Hairs few 25. Belladonnas Folia 



Non-glandular hairs numerous 26. Tabacum 



Starch grains 10 to 35^ 27. Solanum Carolinense 



6. Hairs few or wanting. 



Starch grains 5 to 7 M 28. Dulcamara 



I. Calcium Oxalate Crystals wanting. 



A. CYSTOLITHS OP CALCIUM CARBONATE PRESENT. 



Glandular and non-glandular hairs 29. Cannabis Indica 



Stone cells characteristic 30. Ruellia 



B. CALCIUM CARBONATE WANTING. 



a. Glandular and non-glandular hairs present. 

 a Fragments of pappus present. 



Pollen grains 10 to 20 n 31. Eupatorium 



Pollen grains about 25 n 32. Grindelia 



|3 Fragments of pappus wanting. 



1. Glandular hairs with 1- and 2-celled heads. 



Non-glandular hairs characteristic 33. Digitalis 



2. Glandular hairs with 1- to 8-celled head. 



Odor characteristic 34. Hedeoma 



Non-glandular hairs twisted 35. Marrubium 



Non-glandular hairs 1- to 8-celled. 



36. Mentha Piperita 



Non-glandular hairs 1- to 3-celled 37. Scutellaris 



Non-glandular hairs parallel with surface of leaf 



38. Salvia 



