ON A SMALL COLLECTION OF LICHENS 
FROM JAMAICA, WEST INDIES 
R. Heber Howe, Jr. 
In April, 1909, at the request of Dr. Duncan S. Johnson, of 
Johns Hopkins University, the New York Botanical Garden for- 
warded to me a small collection of lichens collected by him on the 
island of Jamaica in 1903 and 1906. 
At the time I worked over and prepared this list, I was unable 
to find any recently published list 1 of the lichen flora of Jamaica, 
but the publication of Dr. L. W. Riddle’s list 2 has led me to pub- 
lish this enumeration. For the advantage of comparison, this list 
follows Dr. Riddle’s arrangement. 
Two specimens of the genus Cladonia were sent to Prof. Bruce 
Fink for determination : and the crustose species to Dr. H. E. 
Hasse; the genus Stereocaulon was sent to Dr. Riddle who has 
also determined several other specimens. Acknowledgment is 
here most gratefully made. 
Pyrenocarpeae 
Pyrenula “Lichen No. 7. Goat Isd. IV-16-06.” A composite 
specimen. 
Pyrenula “ no spores ” ; Porina sp. ( ?). Spores “ 28 X 8 jx.” 
Anthracothecium Mass. “ Lichen No. 4. Goat Isd. IV-16-06.” 
One specimen spores “muriform, pale-brown,” Determined by 
Dr. Hasse. Nos. 1, 6, 8, 11, 31, 32, 37, and 100 and labelled 
“ Lichens ” belong in other groups. 
CONIOCARPINEAE 
Sphaerophorus compressus Ach. “Lichen No. 36. Sir John, V- 
1-06.” One specimen determined by Prof. Fink. 
1 Swartz, Prod. 1788 and Flora Indiae Occidentalis, 1806. 
2 Riddle, Mycologia, 4: 125-140. 1912. 
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