Pound: revision of mucoraceae. 103 



Subfamily 3. CHOANEPHOREAE. 

 Sporangia and conidia both produced; sporangia few spored; 

 conidiophores erect, simple or branched, with thick clavate 

 tips, upon which numerous conidia are formed singly (i. e. not 

 in chains.) 



13. CHOANEPHORA CuRREY. 1873, is represented by one 

 species, C. cunninghamiana Currey, Journ. Linn. Soc. 

 Bot. 1 3 : 334, as Gunninghamia infxndibulifera. On page 

 578 the name Choanephora cunninghamiana is substituted 

 on account of Cnniiinghamia in the Coniferae. It is found 

 on the flowers of Hibiscus in India. 



Subfamily 4. CHAETOGLADIEAE. 



Asexual reproduction by conidia only, which are borne singly 

 (i. e. not in chains) in groups on the swollen middle portion of 

 branches of the conidiophores, the ends of which are sterile. 



The gradations shown by other forms and produced by cul- 

 tivation make it evident that the conidia are to be regarded as 

 reduced, one celled sporangiola. The manner in which they 

 are formed suggests strongly Thamnidium fresenii. 



14. CHAETOCLADIUM Fresenius Beitraege. 97.1863. 

 Parasitic upon other Mucoraceae; mycelium thin, colorless, 



forming clusters of short, thick haustoria at the points of 

 attachment with the hyphae of the host; sporangiophores 

 creeping, verticillately branched, ending in a long, sterile, 

 pointed tip, the branches short, with sterile tips, bearing on 

 the swollen portion large numbers of single conidia. 



Chaetocladium jouesii (Berkeley & Broome) Fresenius. 



Botrytis jonesii B & Br. Ann. Mag. "N. H. 2 Ser. 13. 1854. 

 C.jonesii Fres. 1863 1. c. 

 Characters of the genus, conidia round, 6^-10 mikrons, with 

 a finely verrucose, dark colored exospore; singly colorless, but 

 blue in mass. 



On dung with other Mucoraceae, saprophytic and for the most 

 part parasitic. 



Chaetoclatlinm brefeldii Van Tiegh. &Le Mon. Ann. Sc. 

 Nat. V. 17:342. 1873. 



Conidia globose or globose- elliptical, smooth, colorless, 2-5 

 mikrons. 



Parasitic on Mucor niucedo and Ascophora mucedo. 



Found by me at Lincoln in 1888, on an onion, growing upon 

 A. mucedo. 



