414 BOTANICAL GAZETTE [NOVEMBER 
WIND BURN IN AMORPHOPHALLUS 
Wind burn, or, as it is more commonly called, “sunburn,” does not 
seem to be conspicuous in plants. An interesting case was observed 
during the past typhoon season at Los Bafios, Philippine Islands. 
During July and August a strong southwest wind is continuous and may 
often become violent. This wind is frequently warm and dry. 
In the latter part of August 1914, the southwest wind was par- 
ticularly and continuously heavy. By the third day of the heavy wind, 
large red blotches were noticed on the petioles of plants of Amorpho- 
phallus campanulatus (Roxb.) Blume (Araceae). Investigation of 
many plants revealed the fact that only in those plants which were 
exposed to the wind was the red color present. Light green areas on the 
petioles were more affected than dark areas. When wind and sun acted 
in combination, the red color was more apparent, occurring on both 
blades and petioles. Plants growing in ravines and in places otherwise 
sheltered from the wind, even though fully exposed to the sun, did 
not show red coloring. Opening up the brush to allow the wind access 
resulted in the development of the red coloring within two to three 
ays. 
The red color from this cause, however, was not a permanent effect, 
for in the rainy period which succeeded the heavy wind the red color 
entirely disappeared within ten days.—FRANK C. Gates, Los Banos, P.I. 
