1019] 



BURT THELEPHORACEAE OF NORTH AMERICA. XI 



263 



On fallen branches and old 



Florida, Louisiana. Jamaica 



West Indies, and Venezuela. August to November. 



When examined by the naked eye or with a magnifying glass, 

 M.fiava is not distinguishable from a Hydnum, but when sections 

 are examined with the compound microscope, the hymenium is 

 found to be a plane surface pierced here and there by the pro- 

 truding fascicles of hyphae. The spore dimensions are those 



A 



of spores which were on the surface of the hymenium 

 specimen in the collection from Florida has a stem 1 mm. 1 

 but the spores are 13X6£ n 

 refer the collection to M. fla 



and other characters such that I 



4/ 



Fig. 5. M . flava. Section of fructification, a, showing hyphal 

 fascicles, /, X 90; spores, s, X 870. 



Specimens examined: 



Florida: Cocoanut Grove, R. Thaxter (in Mo. Bot. Gard. Herb., 



43985). 



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



Cuba: C. Wright (in Curtis Herb.) ; Guantonamo (in Weir Herb., 



10849) ; Pinar del Rio San Diego de los Banos, N. L. Britton, 

 F. S. Earle & C. S. Gager, 6823 (in N. Y. Bot. Gard. Herb., 

 Burt Herb., and Mo. Bot. Gard. Herb., 56075); Puerto 

 Principe, F. S. Earle, 312. 



2. M. brunneoleuca (Berk. & Curtis) Patouillard, Myc. Soc 



Fr. Bui. 16: 181. 1900; Duss, Fl. Crypt. Antilles Fr. ! 

 Hydnum brunneoleucum Berk. & Curtis, Linn. Soc 



1903. 



129. 



1857; Linn. Soc. Bot. Jour, io: 325. 1868; Sacc. Syll 



