THREE NEW SPECIES OF AGARICUS FROM A STOVE. 89 



length expanded, with a slight umbo, and eventually depressed, 

 pale brown, an inch or more across, radiated, silicate from the 

 crenate margin almost to the centre, granulated, beset with short 

 white bristles, which in the young state point in every direction. 

 Stem 2-2^ inches high, scarcely a line thick, at first brownish 

 above, white below, with a minute disc-like swelling at the base, then 

 yellowish or rufous below and white above, granulated like the 

 pileus and beset with white bristles. Gills white, distant, adnexed, 

 slightly ventricose, connected behind ; edge quite entire. 

 2. A. (Collybia) caldaxii. B. 



Pileo hemispherico umbonato brunneo rugoso non expallcnte ; 

 Btipite brunneolo lam extus cart [lagineo ; lamellis adnato-deeurren- 

 tibus subcinereis, interstitiis marginem versus venosis. 



On Sphagnum, in an orchid pot at Dangstein. 



Pileus hemispherical, umbonate, brown, rugose, not turning pale ; 

 1 an inch across ; stem paler, even, cartilaginous externally ; 2 

 inches high, not a line thick ; gills adnato-decurrent, somewhat ash- 

 colored, interstices near the margin veined. 



3. A. (Omphalia) Nevillae. B. 



Pileo hemisphaarico brunneo depresso rugoso striato minute gra- 

 nulato ; margine tenuissimo, pallescente impunctato ; Btipite pal- 

 lidiore nigro-granulato albo-farcto, basi subdilatato villoso-strigoso ; 

 lamellis candidis arcuato-decurrentibus, interstitiis lateribusque 

 venoso-rugosis. 



On Sphagnum, in an orchid pot at Dangstein. 



Pileus \ an inch across, brown, hemispherical, depressed in the 

 centre, rugose, minutely granulated, striate, growing pale, when 

 parting with its moisture, towards the margin, which is not dotted 

 like the centre ; stem 1 inch high, not a line thick, brownish, stuffed, 

 white within, rough with black granules, rather dilated at the base, 

 and clothed with villous hairs ; gills white, arcuato-decurrent ; 

 interstices and sides venoso-rugose. 



Somewhat resembling A. ajfricatus, but not infundibuliform nor 

 variegated with pilose scales, while the gills are white, not cinereous. 



Professor H. L. Smith's Conspectus. — I have just received 

 a communication from my friend the author, calling my attention 

 to one or two errors in my notice of his work. He says — " I did 

 not intend to place all the Triceratia: among the Biddulphia?, for a 



large number of them belong among the Coscinodiscea? 



It is true this does not appear clearly in the Conspectus as it now 

 stands, but this was my idea."* 



Tetracyclus, Ralfs. should have been referred to Biblarivm, Ehr. 



F. Kitton. 



# Professor Smith informs me that an addenda will shortly be published. 



