﻿216 BERKELEY AND CURTIS'S COMMENTARY 



540. H. olivaceum, Schwein. ! The specimens belong to Irpex cinnamomeus. 



541. H. macrodon, P. The species of Persoon is but little known. The Schwein- 

 itzian specimens closely resemble H. mucidwn. 



542. H. membranaceum, Fr. The Schweinitzian specimens are altogether different 

 from the Friesian. In fact we do not find the species which they represent described, 

 and therefore characterize it as follows : II. Schweinitzii, B. et C, papyraceum, 

 album, a matrice omnino solubile ; aculeis sparsis subulatis, basi abrupte dilatatis. 



543. H. fusco-atrum, Fr. 



544. H. ferruginosum, Fr. 



545. H. microdon, P. The original plant is a subterranean species, altogether 

 omitted in the Epicrisis. The fragments of the Schweinitzian plant before us seem to 

 agree fully with H. membranaceum, Bull. 



546. H. alutaceum, Fr. This is very different from the plant of Fries, of which 

 we have authentic specimens. It seems to be a young state of H. udum. 



547. H. fasciculare, A. and S. 



548. H. mucidum, P. Extremely different from authentic specimens. It appears 

 to be the true H. alutaceum. 



550. H. obtusum, Schrad. Very near to H. alutaceum. Unknown to Fries. 



551. H. crustosum, Fr. Identical with No. 546. 

 553; H. niveum, P. Very near to H. farinaceum. 



554. H. subcarnaceum, Fr. 



555. H. sulphureum, Schwein. ! 



556. H. viticola, Schwein. ! Fries considers this only a form of H. mucidum; but 

 the specimens in Herb. Schwein. are totally distinct from that species. The spines 

 are not connected at the base by any mucedinous matter. 



557. H. subresupinatum, Schwein. ! Certainly not a good Hydnum; but our speci- 

 mens are so devoured by insects that we can get no distinct notion of the species. 



558. H. Himantia, Schwein. ! A very beautiful species which we have also from 

 Sweden, gathered by Lindblad. 



559. H. btssinum, Schwein. ! 



560. H. epiphyllum, Schwein. ! A curious species in the style of H, ferruginosum, 

 with short granules rather than spines, and perhaps belonging to Odontia rather than 

 to Hydnum. 



561. H. squalinum, Fr. Our specimens are young and imperfect, 



