704 BOTANY AND PHARMACOGNOSY. 



. B. Calcium carbonate wanting. — Continued. 

 b. Glandular hairs wanting. 



o With non-glandular hairs. 



1. Pollen grains present. 



* Hairs numerous. 



Non-glandular hairs i-celled 39. Lobelia 



Non-glandular hairs i- to 6-celled. .40. Matico 

 ** Hairs very few. 



Cells of non-glandular hairs very short, 

 oblong 41. Tanacetum 



2. Pollen grains wanting. 



Hairs i-celled, with thick walls 42. Scoparius 



/3 Non-glandular hairs wanting. 



Starch grains present 43. Cardamomum 



With tracheids 43a. Sabina 



Without starch grains 44. Staphisagria 



Aqueous solution of a golden-yellow color. 



45. Chelidonium 



POWDERS OF A YELLOWISH COLOR. 



I. Fragments of Vegetable Tissue present. 



A. Containing starch. 



a. With calcium oxalate crystals. 



" In rosette aggregates. 



Crystal fibers 46. Frangula 



Isodiametric stone cells 47. Galla (Aleppo) 



Starch grains swollen 48. Jalapa 



Calcium oxalate crystals 50 to 100 M 49. Rheum 



P In monoclinic prisms. 



Characteristic starch grains 50. Calumba 



Starch grains swollen 51. Curcuma 



Crystal fibers 52. Frangula 



Long sclerenchymatous fibers 53. Gelsemium 



Tracheae with bordered pores 54. Quassia 



7 In crystal fibers. 



With cork fragments 55. Glycyrrhiza (Spanish) 



Without cork fragments. .. .56. Glycyrrhiza (Russian) 



S In raphides. 



Tracheids with bordered pores 57. Ipecacuanha 



Long sclerenchymatous fibers 58. Phytolacca 



Endodermal cells with thick walls. 59. VeratrumViride 



