Banker: Type Studies in the Hydnaceae 
297 
the group.^ There need onl)' be added here a brief account of the 
types still available in European herbaria. In Persoon’s her- 
barium at Leyden were found two specimens, one marked 
‘‘Hydmim parasiticum Pers. Syn.” and the other marked “ Hydnum 
strigosum Swartz. parasiticum Pers. Syn.,” both appar- 
ently in Persoon’s hand. The latter was much the better specimen 
and showed clearly the peculiar characters which distinguish this 
genus. In Berkele}'’s herbarium, at Kew, there was found an 
abundant supply of material under the label “Hydnum stratosum 
Berk. Ohio No. 279,” showing that the plant is precisely as we 
have previously treated it. 
A reexamination of Schweinitz’s specimen in his herbarium in 
the Philadelphia Academy of Science shows it to be a distinct 
form from the type of this genus. Schweinitz referred it to 
Hydnum strigosum Swartz, but the hymenium appears to be dis- 
tinctly poroid and I am inclined to think it should be referred to 
Inonotus hirsutus (Scop.) Murr. 
Hydnodon gen. nov. 
Hymenophore pileate, expanded, irregular ; surface plane, 
orange to red; substance fleshy, thin, drying hard and brittle; 
stipe deformed ; teeth short, stout, deformed, tuberculoid, reddish ; 
spores minute, whitish, clouded, echinulate. 
Hydnodon thelephorum (Lev.) 
Hydnum thelephorum Leveille, Ann. Sci. Nat. III. 2 : 204. 1844. 
Thelephora padinaeformis Montagne, Syll. Crypt. 175. 1856. 
Hydnum lateritium Massee, Kew Bull. 1907: 124. 1907. 
In the herbarium at Paris is a specimen marked “Hydnum 
thelephorum Lev. Ann. Sc. Nat. 3 ser. tom. II. p. 204. Cayenne. 
Lev.” It seems probable that this specimen is the type specimen 
of the species. It agrees perfectly with specimens in the New 
York Botanical Garden collected in Jamaica, Murrill 6gi, and in 
the Bahamas, Brace 48^3. The species is very distinct and well 
marked, not at all likely to be confused with anjihing else. In 
fact, so peculiar are its characters that it has seemed necessary to 
2 Banker, Mycologia 2: 7. 1910. 
