308 
PH A EM A CO ONOS Y. 
bust fibers numerous, thick-walled, strongly lignified ; 
crystal fibers containing monoclinic prisms of calcium 
oxalate; stone cells more or less thick-walled and with 
simple oblique pores; starch grains nearly spherical, 
3 to 10 fi in diameter. 
170. Sanguinaria. — Reddish; starch grains spherical, 
4 to 8 n in diameter ; reddish secretion cells; ducts few, 
reticulate. 
II. WITHOUT STARCH. 
A. STONE CELLS PRESENT. 
171. Capsicum. — Brownish red; stone cells of two kinds, 
either nearly isodiametric, uniformly thickened and 
with middle lamella slightly lignified, or somewhat 
elongated on surface view, convolutely thickened on 
the inner and side walls and strongly lignified ; starch 
grains somewhat spherical, about 3 to 7 ^ in diameter, 
single or compound ; secretion hairs with one- to three- 
celled stalk and multicellular glandular head; col- 
lenchymatous cells with subeiized walls; parenchy- 
matous cells with yellowish -red oil globules and 
irregular masses of chromoplastids. 
172. Rhus Glabra. — Brownish red; non-secretion hairs 
unicellular, narrow, thick-walled, filled with air, or 
multicellular, cylindrical, ellipsoidal or spatulate and 
with a wine-colored pigment ; secretion hairs with one- 
cel led stalk and multicellular globular or ellipsoidal 
head, with yellowisli-brown contents; stone cells about 
20 //. in diameter, thick-walled, strongly lignified, with 
numerous canals; oil globules numerous. 
B. STONE CELLS WANTING. 
a. With Wood Fibers. 
173. Hsematoxylon. — Reddish; ducts with simple 
pores; schlerenchymatous fibers long, thin-walled; 
