The North American Slime Moulds A Descriptive List Of All Speci
Chapter 1
O Stipe when present black
+ Globose, small .5 mm. 6. _B. affinis_
++ Larger, spores strongly spinulose 7. _B. macrocarpa_
+++ Discoidal or annulate 8. _B. orbiculata_
OO Stipes membranous yellowish
+ Stipes long, sporangia iridescent 9. _B. magna_
++ Stipes short or none; iridescent 10. _B. foliicola_
_c._ Sporangia grey, spores adherent