REVISION ОЕ THE NORTH AMERICAN HyDNACEAE 103 
While in general it is not difficult to decide to what groups of 
species Quélet intended his generic names to apply, the name 
Sarcodon is so placed as to be made to include also the next genus 
Calodon. Тһе whole work is nomenclatorially unfortunate and 
sets at defiance all system or rules of publication. It cannot, how- 
ever, be ignored, for later writers including Quélet himself have 
taken up these names and treated them as established genera. 
In 1881 P. A. Karsten іп an Enumeratio Hydnearum Fr. Fen- 
nicarum, Systemate novo dispositarum, published in the Revue 
Mycologique 3': 19, recognized Quélet's genera and republished 
them with species properly assigned under each, in so doing set- 
ting aside his own genera Auriscalpium, Hydnellum and Friesites 
published in 1879, in recognition of Quélet’s priority. This 
paper of Karsten thus becomes technically the place of publica- 
tion of the genera Sarcodon, Calodon, Dryodon and Pleurodon of 
Оцёее. - 
The correct citation, therefore, of these genera with their types 
is as follows : 
Dryodon Quél.; Karst. Rev. Мус. 3: 19. 1881. 
D. coralloides (Scop.) Karst. 
Sarcodon Quél.; Karst. Rev. Myc. 3: 20. 1881. 
S. wmbricatus (L.) Karst. | 
Calodon Quél.; Karst. Rev. Myc. 3': 20. 1881. 
C. suaveolens (Scop.) Karst. 
Pleurodon Quél.; Karst. Rev. Myc. 3': 20. 1881. 
P. auriscalpium (L.) Karst. 
Three of the above genera as thus determined becomes syno- 
nyms as follows: | 
Dryodon = Hericium Pers. 
Calodon = Hydnellum Karst. 
Pleurodon = Auriscalpium S. Е. Gray. 
Synopsis of Genera 
Teeth evident, averaging 0.5 mm. or more in length, more or less awl-shaped, some- 
imes compressed. 
Spores smooth, white or hyaline ; plants usually light-colored, white to reddish ог 
gray. 
Plants mesopodous, terrestrial, fleshy, white, red or yellow. 1. Hydnum. 
Plants not mesopodous, epixylous. 
