The Myxomycetes of the Miami Valley, Ohio. 157 



ORDER II. CALCAREAE. 



FAMILY 2. CIENKOWSKIACKAE. 

 Genus 2, Cienkowskia. 



FAMILY 3. PHYSARACEAR. 

 Genus 3, Badhamia ; 4, Physarum ; 5, Fuligo; 6, Crate- 

 rium; 7, Leocarpus ; 8, Crateriachea ; 9, Tilmadoche. 



FAMILY 4. DIDYMIACEAE. 

 . Genus 10, Chondrioderma; 1 1, Didymium; 12, Lepidoderma. 



-FAMILY 5. SPUMARIACEAE. 

 Genus 13, Diachea; 14, Spumaria. 



ORDER IIL AMAUROCHAETEAE. 



FAMILY 6. ECHINOSTELIACEAE. 

 Genus 15, Echinostelium. 



FAMILY 7. STEMONITACEAE. 

 Genus 16, Lamproderma ; 17, Comatricha; 18, Stemonitis. 



FAMILY 8. AMAUROCHAETACEAE. 

 Genus 19, Amaurochaete. 



FAMILY 9. BREFELDIACEAE. 

 Genus 20, Brefeldia. 



FAMILY 10. ENERTHENEMACEAE. 

 Genus 21, Enerthenema. 



II. LAMPROSPORAE. 

 Spores variously colored, but never violet. 



§1. ATRICHAE. 

 Sporangia without a eapillitium. 



ORDER IV. ANEMEAE. 



FAMILY 11. DICTYOSTELIACEAE. 

 Genus 22, Dictyostelium. 



11 



