103 



spring from the enormous storage tuber measures a little over a 

 centimeter in width. In this case but a single branch is abnor- 

 mal and the rest of the plant is apparently unaffected. 



The fasciation of roots is comparatively infrequent, but Re- 

 naudet in a thesis dated Poitiers, 1901, states that it is found 

 oftenest among the aerial roots of tropical species. Cecropia pal- 

 mata produced three fasciated roots in the tropical house of the 

 New York Botanical Garden in 1906. They emerged from the 



Figure 3. A normal and a fasciated plant oi Drosera rotundifoHa. 



trunk somewhat over a foot from the ground, began to flatten 

 close to the main axis, and were finally deeply grooved and 

 bifurcated. The largest measured 12 mm. in width and was 

 three-forked. They resembled closely the drawing of a root of 

 Pothos mirca by Udo Dammer in Gardener's Chronicle (26 : 724. 

 1886), although, perhaps owing to the early development of the 

 fasciation, injuries such as he has described in connection with 

 the fasciation of Pothos could not be detected. 



Alice Adelaide Knox. 



