POWDERED DRUGS. 
269 
2. Pollen grains wanting. 
* Fibrovascular tissue present. 
Containing inulin masses 67. Lappa 
Sclerenchymatous fibers numerous 68. Senega 
** Fibrovascular tissue wanting. 
Few or no fragments of vegetable tissues . 69. Cambogia 
Large multicellular secretion hairs . . .70. Lupulinum 
Tetrahedral spores 71. Lycopodium 
II. Few or No Fragments of Vegetable Tissues. 
A. Giving off odor of sulphur dioxide when burned. 
Rounded masses in chains 72. Sulphur Lotum 
Rounded masses in irregular groups, 
73. Sulphur Priecipitatum 
B. No odor of S0 2 on burning. 
a. Nearly colorless in glycerin mount. 
Transparent, irregular masses 74. Mastiche 
b. Yellowish in glycerin mount. 
a Containing oil globules. 
Irregular masses 75. Scammonium 
/S Transparent or translucent. 
Soluble in cold alcohol 76. Colophony 
Insoluble in cold alcohol 77. Sandarac 
Reddish with alkalies 78. Aloes (Cape) 
7 More opaque. 
Light or grayish particles 79. Ammoniac 
Yellowish particles 80. Cambogia 
Powders of a Brownish Color. 
I. Fibrovascular Tissue present. 
A. Containing starch. 
a. Calcium-oxalate crystals present. 
a Crystals rosette-shaped. 
1. Sclerenchymatous fibers numerous. 
* Containing resin or tannin masses, 
f Fibers with thick walls and strongly lignified. 
Sclerenchymatous fibers few ... 81. Belladonnse Radix 
Starch grains 4-20 p ... . 82. Gossypii Radicis Cortex 
Starch grains 3-7 p, compound 83. Rubus 
Starch grains 15-30 p . . 84. Stillingia 
ft Fibers with relatively thin walls and not strongly 
lignified. 
Modified hast fibers 85. Euonymus 
** No resin or tannin masses. 
Crystals about 26 p 
86. Althaea 
