MICHIGAN ACADEMY OF SCIENCE. 
199 
PSYCHOTRIA UNDATA AS A COFFEE PLANT. 
ERNST A. BESSEY. 
The seeds of Psychotria undata, a native of Southern Florida, when 
dried and parched give off the odor of roasting coffee. When ground 
and boiled in water a solution with the odor and taste of coffee resulted. 
THE HAMMOCKS AND EVERGLADES OF SOUTHERN FLORIDA. 
ERNST A. BESSEY. 
Hammocks are dense formations of broad-leaved evergreen trees occur- 
ring in the midst of the dry, very open pine forests. The latter are 
often semi-xerophytic in nature while the hammocks are very moist with 
a great abundance of epiphytes. The plants of the hammocks are much 
more tropical in general than those of the pine woods. The hammocks 
apparently modify their immediate environment bj 7 increasing the hu- 
midity of the air and thus favor their slow spread. 
The everglades are nearly level prairies, submerged for most of the 
year and accordingly treeless except in the higher places where sub- 
mergence does not occur or is less prolonged. The vegetation is largely 
Monocotyledonous. It is less tropical than that of any other formation 
of Southern Florida, probably owing to the greater radiation and lack 
of protection which permits the temperature to drop quite low occasion- 
ally. 
«/ 
East Lansing, Mich., April, 1911. 
