14 ILUNOIS BIOLOGICAL MONOGRAPHS [14 



Genus 41. Acanthospora L^ger 1892:145. Epimerite a simple conical 

 knob. Spores biconical with a row of equatorial and one 

 of pwlar spines. 

 Type: Acanthospora pileaia L^gei. 

 Genus 42. Corycella L6ger 1892:144. Epimerite globular, with eight 

 large recurved hooks. Spores biconical with one row of 

 polar spines. 

 Type: Corycella armata L^ger. 

 Genus 43. Prismatospora Ellis 1914:215, Epimerite subglobular with 

 eight lateral recurved hooks. One row of spines at each 

 pole. Spores hexagonal. 

 Type: Prismatospora evansi Ellis. 

 Genus 44. Ancyrophora L^ger 1892:146. Epimerite globular with 

 five to ten backwardly-directed digitiform processes. 

 Spores biconical with one row of equatorial and one of 

 polar spines. 

 Type: Ancyrophora gracilis L^ger. 

 Genus 45. Cometoides Labb€ 1899:29. Epimerite a globe with six to 

 eight long slender filaments directed upward. Spores 

 cylindro-biconical with one row of polar and two of equa- 

 torial spines. 

 Type: Cometoides criniius (L6ger) Labb€. 

 Family 9. Menosporidae L^ger 1892:168. Sporonts solitary. Epimerite a 

 large cup bordered with hooks and placed on a long slender 

 neck. Cyst dehiscence by simple rupture. Spores cres- 

 centic, smooth. 

 Genus 46. Menospwra L6ger 1892:151, 168. Characters of the family. 

 Type: Menospora polyacantha L^ger. 

 Family 10. Stylocephalidae Ellis 1912:25. Sporonts solitary, epimerites varied. 

 Nucleus ovoidal. Dehiscence by pseudocyst. Spores hat- 

 shaped, in chains. 

 Genus 47. Stylocephalus Ellis 1912:25. Dilated papilla at end of a long 

 neck. Spores hat-shaped. Cysts covered with minute 

 papillae. 

 Type: Stylocephalus oblongatus (Hatom.) Wats. 

 Genus 48. Bulbocephalus Watson 1916b:66. Epimerite a dilated papilla 

 in middle of a long slender neck. 

 Type: Bulbocephalus wardi Wats. 

 Genus 49. Sphaerorhynchus Labb^ 1899:32. Epimerite a small sphere 

 at the end of a long slender neck. 

 Type: Sphaerocystis ophioides (Schn.) Labb^. 

 Genus 50, Cystocephalus Schneider 1886:99. Epimerite a large lance- 

 shaped papilla at end of a short neck. Spores hat-shaped. 

 Type: Cystocephalus algerianus Schn. 

 Genus 51. Oocephalus Schneider 1886:101. Epimerite a sphere at apex 

 of a short stout neck. 

 Tjqje: Oocephalus hispanus Schn. 

 Genus 52. Lophocephalus Labb6 1899:31. Sessile crateriform disc with 

 , crenulate periphery, set at the base with many short 



upwardly-directed digits. 

 Type: Lophocephalus insignis (Schn.) Labb6. . 



