BRITISH MYCETOZOA. 



17 



MYCETOZOA. De Bary. 



[MYXOMYCETES. Wallroth.] 



SUB-CLASS I.-EXOSPORE.E. 



ORDER I.— CERATIOMYXACEjE. 



Genus i. CERATIOMYXA Schroe- 

 ter. — Surface of sporophores mapped out 

 into polyhedral areolae, from the centre 

 of each of which arises a slender stalk 

 bearing a single ellipsoid spore. 



i C. mucida Schroeter. — Sporophores 

 white or pinkish-yellow, forming either 

 simple or branching tufts, or, in the va- 

 riety porioides, a network resembling the 

 pores of a Polypoms. Spores white, 

 ellipsoid, smooth, 10 X 6 to 13 X 7 

 ft, diam. 



Hab. On rotten logs. 



Fig. 9. 

 Ceratiomyxa mucida Schroet. 



a. Clusters of sporophores. 



Twice natural size. 



b. Sporophore. Magnified 40 



times. 



c. Four areolae of mature sporo- 



phore : one spore still at- 

 tached to its stalk, and 

 another free. Magnified 

 480 times. 



SUB-CLASS II.— ENDOSPOREjE. 



Cohort l.—AMAUROSPORALES. 

 Sub-cohort 1.—CALCAR1NEAI. 



ORDER I.— PHYSARACE^E. 



Genus 2. 



BADHAMIA. Berkeley. — Sporangium-wall mem- 

 branous, containing lime-granules; capil- 

 litium a coarse network charged through- 

 out with granules of lime ; spores clustered 

 or free. 



1. B. hyalina Berk. — Sporangia glo- 

 bose or pyriform, usually sessile, 1 to 

 i*S mm. diam., greyish-white. Capillitium 

 of broad, branching, anastomosing bands, 

 white. Spores dark purple-brown, ad- 

 hering in clusters of 8 to 20, more strongly 

 warted on the outer third, n to 13 

 /x diam. 



Hab. On fir logs, etc. 



2. B. utricularis Berk. — Sporangia 

 ovoid, subglobose, or lobed, 0-5 to 1 mm. diam., clustered, with 



2 



Badhamia utricularis Berk. 



rt. Cluster o r sporangia. Mag- 

 nified 3^ times. 



b. Fragment of capillitium and 

 spore-cluster. Magnified 

 140 times. 



