POWDERED DRUGS. 
297 
spherical, 3 to 12 //in diameter, single or two teffour- 
compound; ducts spiral or scalariform; sclerenchy- 
matous fibers long, thin-walled, with simple pores ; 
endodermis with inner walls much thickened. 
102. Cypripedimn. — Brownish black; calcium oxalate 
in raphides about 40 p long; starch grains somewhat 
spherical, 2 to 4 p in diameter, single or compound ; 
ducts spiral, scalariform or with simple pores; scleren- 
chymatous fibers long, thin walled ; parenchyma thick- 
walled, with numerous simple pores. 
103. Yeratrum Viride. — (See No. 47). 
e CALCIUM OXALATE IN CRYPTOCRYSTALLINE 
CRYSTALS. 
103a. Belladonna Radix. — (See No. 91.) 
104. Cinchona. — (See No. 115.) 
b. Calcium-Oxalate Crystals Wanting, 
a. WITH NON-SECRETION HAIRS. 
105. Strophanthus. — Dark brown ; epidermal cells 
modified to long one-celled non-lignified hairs, con- 
taining, in S . Kombe, colorless or yellowish - green 
granules and in S. hispidus, dark -brown granules; 
parenchyma with fixed oil and aleurone grains; starch 
grains ellipsoidal, 4 p in diameter. 
/3 NON-SECRETION HAIRS WANTING. 
1. SCLERENCH YMATOUS FIBERS PRESENT. 
* DUCTS NUMEROUS, 
t Starch Grains 2 to 5 n in Diameter. 
106. Cimicifuga. — Brownish black; ducts large, scalari- 
form or with bordered pores; sclerenchymatous fibers 
numerous ; starch grains nearly spherical, 3 to 5 p in 
diameter; cells of periderm thick-walled and with 
reddisli-brown contents. 
107. Cypripedium. — (See No. 102.) 
108. Leptandra. — Dark brown ; ducts scalariform or 
