Sheldon: a study of some Minnesota mycetozoa. 477 



On decaying sticks and stems near Osceola, Wisconsin {E. P. 

 S., Sept., 1892); in woods near Lakeville, Dakota county, Minn. 

 {E. P. S., July, 1893); near Minneapolis, Minn. (E. P. S., May, 

 1891). 



36. Diderma coutortiim Hoffm. Deutschl. Fl. t. 9, f. 2a. 

 1795.11 

 Eeticularia liemisplierica SowERn. Fig. Eng. Fung. t. 12. 1797. 

 Physarum depressum ScnuM. Saell. n. 1439. 1803. 



(11) The nomenclature of tho remaining species of this genus might be indicated as 

 follows: 



l>ideriua niveuin ( Kost. ) 



Chnndrioderma niveum RosT . Men. 170. 1875. 



Di«ler ma virgin euni (Mass.) 



ChondriiKlerma virgineum Mass. Mon. Myxog. 207. 1892. 



I>idernia subdictyosperiiium (RosT.) 



Chondriodermit suhdictyottiiermum Host. Mon. Append. 16. 1875. 

 Cfwndrioda-ma denlhata Mass. Mon. My.xog. 207. 1892. 



Diderma friesianum (Rosx.) 



Chondrioderma friesianum Host . in Fuckel Symlj. Myc. Nachtr. 2, 74. 1(73. 

 Diderma difformeSOMMF . Fl. Lap. 217. 1826. not Pers. 1797. 



Diderma albescens Phil, in Grev. 5:114. 1877. 



Clinndrioderma albesceivi Mass. Mon. Myxog. 209. 1892. 



Diderma slmulans (Host.) 



CItondriodenna sitnulans Host. Mon. Append' 20. 1875. 



Diderma saundersii(MASS.) 



Chondriodermasaundersii Mass. Mon. Myxog, 209. 1892. 



Diderma affine (Rost.) 



Chondrioderma afflne Rost. Mon. Append. 18. 1875. 



Diderma testaeeum (Schrad.) Pers. Syn. Fung. 167. 1801. 

 Didymium testac.eum SCHRAV . Nov. Gen. PI. 25. 1797. 

 Cionium tentaceum Spreng. in Linn. Syst. Nat. Ed. xvi, 6:529. 1827. 

 ClKindriodermatestaceumllOST. Mon. 170. 1875. 



Diderma sublateritium B. & Br. in Journ. Linn. Soc, 14:82. 1S75. 

 Chondriodertna snhlateriiium Rost. Mon. Append. 19 1875. 



Diderma mutabile (Schkoet.) 



Chondriodeima mutabile SCHROBT . Krypt. PI. Schles. 3:123. 1889. 



Diderma fallsix (Rost.) 



Chond7-iodermafalla.v JiOST. Mon. 171. 1875. 



Diderma angulatum (Pers.) 



Retivularia angulata Pers. in Gmelin in Linn. Syst. Nat. Ed. xiii, 1472. 1781. 



Diderma difforme Pkhs. Disp. Meth. Fung. 9. 1797. 



Liceacaesifj ScHUM. Saell. 1.500. 1803. 



Phyxanim difformc Link. Diss. Bot. 1 :27. 1809. 



Ainplii^fxjrium versicolor Feies. Symb. Gost. 19. 1818 



Licea alha Nees. In. Kze, Myk. 2:66. 1823. 



Lycogahi minutum Ghev. S. O. Fl. t. 40. 1823. 



Retictdaria pusilla Fries. Syst. Orb. Veg. 1 :147. 1825. 



Diderma cyanescenK Fries. Syst. Myc. 3:109. 1829. 



Phii>iaiiim caesium Fries. Syst. Myc. 3:147. 1829. 



Phyxarum album Fries. Syst. Myc. 3:147. 1829. 



