A NEW SPECIES OF ENDOTHIA 
Stephen C. Bruner 
(With Plate 192, Containing s Figures) 
On the grounds of the Estacion Experimental Agronomica and 
elsewhere in the vicinity of Santiago de las Vegas, the writer 
has found an Endothia to be quite common on several species of 
Eucalyptus and on the mango {Mangifera indica). IMicroscop- 
ical and cultural studies have shown this form to be distinct 
from any previously described species. On Eucalyptus, the 
fungus is usually found on the bark of dead or injured trees. 
It is also sometimes seen on the outer layers of rough bark on 
large healthy trees. On mango, the fungus has been found only 
on dead branches lying on the ground. No perithecia have yet 
been obtained from this source, but in culture this form is indis- 
tinguishable from that on Eucalyptus. The pycnidial stage of the 
fungus has also been observed on the avocado {Per sea gratis- 
sima) and the jobo (Spondias mombin). A specimen on the 
last was collected near Herradura in the province of Pinar del 
Rio by Dr. C. L. Shear, of the United States Department of Agri- 
culture, and kindly presented to the writer by him. This is the 
only instance so far known of the occurrence of this Endothia 
on a native tree, although the fungus itself is undoubtedly of 
Cuban origin. 
In general characters, the fungus rather closely resembles 
Endothia radicalis (Schw.) DeNot. However, the ascospores 
are larger and slightly different in form, and in culture the color 
reactions of the two are quite distinct. 
Cultural Characters 
Boiled rice, sterile Eucalyptus twigs, and potato agar were the 
media found most satisfactory in studying this fungus, although 
others were used to some extent. These were prepared accord- 
ing to the following formulae : 
Rice. Place 3 grams of dry commercial rice and 10 cc. of dis- 
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