1918] 
BURT——THELEPHORACEAE OF NORTH AMERICA. IX 187 
outer end even and lateral prongs present at lower level of 
hymenium; basidia clavate, up to 10012-15 и, with 4 prom- 
inent sterigmata about 15 и long; spores hyaline, unequi- 
lateral, apiculate, minutely echinulate, 20-25 «12-15 и. 
Fig. 4. A. apiculatus. Flexuous paraphyses, f; perapurvee 
with aculeate prongs, а; basidium, b; and spores, s. X870. 
Fructifications 24-10 em. long, 6-15 mm. broad, with re- 
flexed margin 1-11 mm. broad. 
On bark of pole of frondose wood on ground at 5,000 ft. 
altitude, and on dead limbs. Jamaica, Porto Rico, and Gre- 
nada. November. 
Until microscopic examination of the sections was made, 
the collections were regarded as consisting of large specimens 
of A. ОаКези, which this species resembles in aspect but from 
which it differs in spore characters and in the absence of mo- 
