68 THE NORTH AMERICAN SLIME-MOULDS 



This species resembles B. capsulifera, but is distinguished by 

 a more strongly rugulose peridium and a more profuse devel- 

 opment of filamentous stipes, but especially by the character 

 of the spores. The spores of the present species while in- 

 clined, when mounted in a liquid, to stay together, nevertheless 

 do not coalesce in heaps as in the related species, nor do they 

 show any differentiation in the episporic markings, these being 

 uniform over the entire spore. 



8. BADHAMIA CAPSULIFERA (Bull.) Berkeley. 



1791. Sphcsrocarpus capsulifer Bull., Champ., p. 139, t. 470, Fig. 2. 



1801. Pkysarum hyalimtm Persoon, Syn. Meth. Fun., p. 170? 



1852. Badhamia capsulifera Berk., Tr. Lin. Soc., XXI., p. 153. 



1852. Badhamia hyalina Berk., Tr. Lin. Soc., XXL, p. 153. 



1875. Badhamia hyalina (Pers.) Rost., Man., p. 139. 



1875. Badhamia capsulifera (Bull.) Rost., Mon., p. 141. 



1892. Badhamia varia Massee, Mon., p. 319 (in part). 



1894. Badhamia hyalina Lister, Mycetozoa, p. 30. 



Sporangia clustered or gregarious, sessile or sometimes stipi- 

 tate, globose or obovoid, gray or grayish white, snow white 

 when empty ; the peridium thin, translucent ; the stipe, when 

 present, as in B. iitricularis, although generally better devel- 

 oped, yellow or straw colored ; capillitium a very loose, open 

 network of white, lime-filled tubules, not much expanded at 

 the nodes ; columella none ; spore-mass purplish brown ; spores 

 adhering in clusters of five or six to twenty or more, globose, 

 but affected somewhat by mutual pressure, rough throughout, 

 the exposed surface in the cluster, most distinctly warted, 



10-12 /x. 



This is Badhamia hyalina (Pers.) Berk. (Rost., Mon., p. 139), 

 but Rostafinski himself admits that the two species, here united, 

 as he defined them, are very much alike, having "the same 

 spores and capillitium," differing in the form of the sporan- 

 gium, an inconstant feature. Bulliard's name has precedence ; 

 his descriptions of this and the preceding species are remark- 

 able. P. magna Peck probably belongs here. 



The peculiarly adherent spores distinguish the species from 



