1918] 



BUET THELEPHORACEAE OF NORTH AMERICA. IX 191 



coarser hyphae; globose organs of proteid reaction, 6-15 ii 

 in diameter, with shriveled or wrinkled surface, are scattered 

 throughout the fructification; hymenium composed of gran- 

 ule-incrusted hyphal systems and of presumable basidia 

 buried among the incrusted hyphae ; such basidia-like bodies 

 clavate, 60-100x15-20 /x, yellow in KHO preparations, simple, 

 none seen bearing sterigmata ; detached spores hyaline, even, 

 18-27x12-21 li. 



Fructifications 2-5 mm. in diameter, becoming up to 3 cm. 

 long by confluence. 



On bark of frondose trees. South Carolina to Louisiana, 

 West Indies, and Mexico to Colombia. 



This species may be recognized by its pulverulent, egg- 

 yellow, orbicular fructifications which are white within and 

 contain so much granular matter as to render other details of 

 internal structure obscure and difficult of determination. This 

 granular matter holds together so as to show that it is in- 

 crusting matter upon very tenuous, nonstaining hyphal fila- 

 ments. While I do not doubt that the large, yellow, clavate 

 organs near the hymenial surface but buried in the granular 

 matter are immature basidia, still I have not demonstrated 

 their sterigmata in the preparations of any of the collections 

 which have been examined up to the present. The globose 

 organs show distinctly in stained preparations which have been 

 heated in dilute HCl to free them of the crystalline matter. 



Specimens examined: 

 Exsiccati : Ravenel, Fungi Car. 3 ; 28, under the herbarium 



name Corticium citrinum Berk. & Rav. but not of Fries. 

 South Carolina : in Ravenel, Fungi Car. 3 : 28 ; Black Oak, 



H. W. Ravenel, 1397, under the name Corticium citrinum 



(in Curtis Herb.). 

 Florida: Daytona, R. Thaxter, 52, 62 (in Farlow Herb, and 



in Mo. Bot. Gard. Herb., 43942 and 43944) ; Ocala, R, 



Thaxter, 58 (in Farlow Herb., and in Mo. Bot. Gard. Herb., 



43943). 

 Louisiana: St. Martinville, 'A. B, Langlois, 1953, 

 Jamaica: Morce's Gap,rfF. A. & Edna L. Murrill, 714, N. Y. 



Bot. Gard., Fungi of diimaica. 





