CLAVIS AGARICINORUM. 19? 



without a ring, tlioiigli at present none are described.* Weiglit is added 

 to this opinion by the fact that Fries has hitely established a sub- 

 genus {Pilosace) amongst tlie PratelUe with these very cliaracters (Plate 

 IV.). Till then Platens stood quite alone in structure. 



Hitherto no subgenus lias been recognized amongst the Hi/porhodu 

 analogous to Lepioia among the Leucospori, but such a gi-oup really 

 exists. In the ' Commentario della Societa Crittogamologica Italiana,' 

 No. 2, September, 1861, there is an Agaric described as a doubtful 

 Plutetis under the name of "A. (Pluteiis ?) xanlhogrammm, Ces." It 

 greatly resembles A. (Ann'dlaria) mitcidiis, Fr., in aspect, and the 

 stem is furnished with a ring; so that it fills up the vacant space in 

 the Ilyporhodii. I propose for it the subgeneric name of Chameeota. 

 To it also belongs A. creiaceus, Fr., A. ecliiuatus, Eoth, etc. A. 

 cretaceus, Fr., should not be referred to as intermediate between Lepioia 

 and PsaUlota. It is singular that, with these unrecognized exceptions, 

 not a single rosy-spored Agaric is described as possessing a stem fur- 

 nished with a true ring, whilst in the Pratella, every species in every 

 subgenus has a ring more or less manifest. 



Some species of the subgenus Crepidotus must be removed to the 

 space in the Ilyporhodii, analogous to Pleurotus, as their spores are 

 rosy, and not brown. To this new and natural group I give the 

 name Clandopus. Mr. Berkeley's species of Pleurotus (?) with pink 

 spores belongs to this subgenus. When Mr. Berkeley's book was pub- 

 lished, ten years ago, no species of the subgenus Eceilia were known 

 to be British ; now at least three are on our lists. ^ 



III. DERMiNr, 5/-ow//-s/jo;-«/ .'i^aWcs (Plate III.).— In the Ber- 

 mini, the blanks for unrepresented subgenera are more numerous. 

 There are no British species with the hymeuophorum free from the 



* Since this paper has been in jirint, I have received from Mr. Charles H. 

 Peck, of Albany, New York (under date March 30, 1870), an interesting note 

 regarding a critical American Agarie. If liis description prove correct, the 

 plant he mentions exactly fills the only vacant space amongst the Leucospori. 

 He say?, in answer to my inquiries, " I have found vehat I have classed with 

 the Lepiotae, a viscid, ctespitose species, growing on old stunqjs close to the 

 ground, having no trace of veil or annulus, a circumstance in which it does not 

 agree with other species of that subgenus so far as known to me." The habitat 

 of this Agaric, leaving out its structm-al characters, does not agree with any 

 species of Lepiota, but is in correspondence with that of Pluteus, wliere the. 

 annulus is also absent, and which is probably one of its analogues. The habi- 

 tats correspond in other analogous subgenera, as in Lepiota and Psalliota ; 

 Armillaria, PhoUota, and Stropharia, etc. 



