e 
14 PEssIN: EPIPHYLLOUS PLANTS OF JAMAICA 
the epiphyllous habit. Parasitism is possibly an advanced, 
specialized phase of epiphytism. 
The writer is indebted to the Botanical Department of the 
Johns Hopkins University for the opportunity of going to Jamaica. 
The writer wishes to thank particularly Professor Duncan 5. 
Johnson for suggesting this problem, for taking the photographs 
reproduced on PLATE 5, and for helpful advice in carrying on the 
work. Acknowledgments are due Professor Alexander W. Evans 
for the determination of most of the epiphyllous hepatics; to 
Mrs. N. L. Britton of the New York Botanical Garden for the 
determination of some of the epiphyllous mosses; and to Pro- 
fessors C. C. Plitt and Lincoln W. Riddle for the determination 
of certain epiphyllous lichens. 
LITERATURE CITED 
. Berkeley, M. J. On the thread blight of tea. Quart. Jour. Microsc. 
Sci. 15: 130-133. f. 7-4. 1875. 
_ 
2. Cunningham, D. D. On Mycoidea parasitica. Trans. Linn. Soc. 
London II. 1: 301-316. pl. 42, 43. 1877. 
3. Massart, J. Les végétaux épiphylles. Ann. Jard. Bot. Buitenzorg. 
Suppl. 2: 103-108. 1898. é 
4. Schimper, A. F. W. Botanische Mittheilungen aus den Tropen 2. 
Die epiphytische Vegetation Americas. Jena. 1888. 
5. Schmidle, W. Einige Baumalgen aus Samoa. Hedwigia 36: 277- 
287. pl. 6-9. 1897. 
6. Ward, H. M. On the structure, dsyeloomuut and life history of a 
tropical epiphyllous lichen. Trans. Linn. Soc. London II. 2: 87- 
119. pl. 18-27. 1883. 
Explanation of — x 
Fic. 1. - Leaf of nSubed peated cma: h Il h osse: 
Fic. 2. Leaf of Elaph atifolium : showing a ‘tusuriant growth of .. 
lous plants; a small wild pie; pei Stiteues. can be seenon the right hand 
margin. 
