Mvxom.vcotre. Acrnsiacerp seu SorophorefB, Polysphondylium. 215 



Ilah. iu stercoro canino, Cambridge et Indiana Amor. bor. 

 3. Guttulinopsis vulgaris Olivo 1. c. p. 336. — Soris vulgo pedunca- 3901 

 latis, intordum sessilibus, lBO-500 » 150-400; fructificatione ex al- 

 bido in sordide flavidum varianto, secus substrati naturam et sori 

 siccitatem; pseudosporis vulgo irregulariter sphnerici», 4-8 tj,. diam. 

 Hah.m stercore equino, vaccino, suino, murino, Cam- 

 bridge, Alabama, Indiana, Maino Amor. bor, et Porto Rico. — 

 Guft. aurea v. Tiegh , cui affinis « sporis » aurois differre vi- 

 detur. 



DICTYOSTELIUM Bref. — VII p. 451. 



1. Dictyostellum aureum Olive Proc. Amer. Acad. Arts and Sc 1901, 2<Mo 

 XXXVIII, p. 340. — Soris maturis aureo-flavis, 1,5-4 mm. alt.; 

 sporis ovoideis, s;r;pe inaBquilateris, 5-8 ^ 2,5-3. 



Hah. in stercoro murino, Porto Rico (Thaxter). — Colore 

 aureo, crescendi modo notisque myxoamcebarum distinguenda 

 species. 



2. Dictyostelium brevicaule Olive 1. c. — Soris albis, stipitatis; sti- 390G 

 pite 1-3 mm. alt. ; sporis ovoideis 4-7^3-4, rarius sphtericis, 3-4 



[j,. diam. 



//a&. in stercore ovino et caprino, Cambridge Mass. Amer. 

 bor. — Sori majusculi constanter sod breviter stipitati. Stipite 

 brevi recto etc. a Dictyostelio mucoroidi et affinibus mox distin- 

 guendum. 



3. Dictyostelium purpureum Olive 1. c — Soris stipiteque purpureis 3907 

 V. violaceis, maturis plorumque nigricantibus ; sporis ovoideis, ra- 

 rius subina^quilateris, 5-8 « 3-5. 



Hah. in stercore murino, vaccino, equino, ovino nec 

 non bufonis, Cambridge Mass. Indiana et Florida Amer. bor. 



POLYSPHONDYLIUiVI - Syll. VII p. 453. 



1. Polysphondylium album Olive Proc. Amer. Acad. of Arts and Sc. ^f^Qc^ 

 1901, XXXVII, p. 342. — Soris stipiteque albis; soris 100-200 



;x. diam.; sporis ovoideis, 4-5=^2,5-3. 



Ilah. in stercore bufonis, Eustis Florida Araer. bor. — A P. 

 violaceo et P. pallido distinguitur soris majoribus, copiosioribus, 

 hinc magis conspicuis prnetereaquo stipes basi gracilior. 



2. Polysphondylium pallidum Olive 1. c. p. 341. — Soris pedicollisque g^^g 

 albis, primis 50-80 jjl. diam.; sporis ovoideis 5-6,5 ^j; 2,5-3, rarius 

 sphfEricis 7-8 {x. diara. 



