2 
SPECTES OF HYDNEI. 
Hydnum mic*odon, Pers. Fr. Syst. Myc. i. 147. Klot. H.C. Myc. 1918, 
ed nova 133. 
Omitted from Saccardo Sylloge. 
Hydnum luteo-virens, Cesati. 
From Pedrotallagalla. 
Appears to be an Irpex . 
Hydnum Berkeleyi, Curtis. (. Bavenel 963). 
We fail to trace description. 
Hydnum albiceps, B. $ Bav. Herb. Berk. 
As far as the United States specimens are concerned, this does 
not appear to be distinct from H. membranaceum. The Ceylon 
specimen seems quite different. 
Hydnum herbicolum, Fllis MSS. 
On stems of Phytolacca. (No. 3865.) 
Is this described ? 
Hydnum trechodontium, Berk, in Herb. Bav. Fun. Car. in. 20. 
On oak logs. Ravenel, 1296. 
Doubtless a form of H. mucidum . 
Hydnum (Resup.) lachnodontium, Berk. 
Albidum. Subiculo latissimo, papyraceo, primum flocculoso, 
niveo, margine villoso ; aculeis praelongis, acicularibus, plerumque 
ad basim compressis, flaccidis, inaequalibus, acutis (2-3 m.m. 
longis). 
On logs, etc. Neilgherries, India. 
Hydnum Ayresii, Berk, in Herb. 
Subiculo crustaceo, tenui, effuso, umbrino, margine indeterminato, 
velutino, pallescente. Aculeis confertissimis, subulatis, brevibus, 
acutis, saepe deorsum compressis, vel confluentibus. 
On bark. Mauritius. 
There is another species from Venezuela in Herb. Berk, under 
the name of Hydnum uncinatum, but the specimens are small and 
may be immature, or, at least, are hardly satisfactory for descrip- 
tion. 
% 
RADULUM. 
Of the species of Radulum not included in Saccardo Sylloge 
may be mentioned : 
Radulum spongiosum, Berk. Hook. Journ. 1854, p. 168. 
Eastern Nepal. 
Radulum thelephoroides, Berk, in Herb. 
= Thelephora hydnoidea, Schwein. 
Radulum pini-canadensis, Schwein. Fungi Amer .-Boreali No. 595. 
Radulum hydnans, Schwein. Fungi Amer. -Bor tali No. 596. 
Radulum investiens, Schivein. Fungi Amer.-Boreali No. 597. 
