455 
Wernham, The Systematic Anatomy of the genus Canephora. 
The parts examined respectively for each species were of 
corresponding age and maturity of development. 
C. madagascariensis Gmelin. 
I. Stern (Fig. 2). — The pith consists of rounded cells with 
rather large lumina and with distinct intercellular spaces. The 
Fig. 2, a. 
Fig. 2. Canephora madagascariensis. 
a. A portion of the stem in transverse section; for explanation of lettering, see text. 
b. Diagram of the whole stem in transverse section. 
Lac., lacunae in the pith; other signs as in Fig. 3. 
walls are for the most part thick and lignified, especiallv in the 
peripheral zone where the pith passes more or less insensibly into 
the primary xylem. In the central part of the pith. groups of thin- 
walled cells (th.) appear; and two large lacunae (lac.), which 
