180 THE JOURNAL OF BOTANY 



Subclass II.— ENDOSPOREiE. 



, I * • « * 



Cohort I. — Amaurosporales. 



Subcohort I. — Calcarine^e. 



Order I. — PhysasacejE. 



2. Badhamia Berkeley. Sporangium-wall membranous, containing 



lime-granules ; capillitium a coarse network charged through- 

 out with granules of lime ; spores clustered or free. 



A. Spores clustered : — 



* a. Spores warted on one side chiefly — 



a. Sporangia 1 to 1'5 mm. diam. — 



* Lime in sporangium and capillitium white — 



Plasmodium orange, sporangia grey, clustered or 

 scattered B. hyalina Berk. 



Plasmodium white, sporangia white, heaped 



B. populina List. (18, p. 129*). 



** Lime in sporangia and capillitium yellow B. nitens Rost. 



/3. Sporangia 08 to 0*5 mm. diam., capillitium white or 



apricot-coloured . . B. versicolor List. (15, p. 81*). 



b. Spores equally warted all over . . . B. utricularis Berk. 



B. Spores not clustered : — 



a. Sporangia yellow or orange • • . . B. decipiens Berk. 



b. Sporangia white or grey — 



Sporangia globose on long membranous stalks, spores nearly 

 smooth, blackish B. magna Peck 



Sporangia subglobose sessile or with firm yellow or brown 

 stalks, spores closely spinulose, dark purple-brown 



B, maerocarpa Rost. 



Sporangia discoid, depressed, on short black stalks, spores 

 violet- brown B. orbiculata Rex 



Sporangia subglobose, sessile, spores violet-brown, nearly 

 smooth, plasmodium white • . . B. panicea Rost. 



Sporangia globose sessile or on short membranous stalks ; 

 spores violet-brown, plasmodium orange 



B. foliicola List. (9, p. 209). 



c. Sporangia sessile, hemispherical, or forming plasmodiocarps, 



chalk-white ; spores smooth, ellipsoid 



B. ovispora Racib. (10, p. 354*). 



3 



C. Sporangia flesh-coloured or purple-brown : — 



Sporangia sessile, without a true columella B. lilacina Rost. 



Sporangia stalked, stalk continued into the sporangium as a 



columella B. rubiginosa Rost. 



3. Physarum Persoon. Sporangium-wall membranous, with in- 



corporated ("innate") deposits of lime in round granules, 





