CoxxixGHAM.— Te Ustilagineae, or “ Smuts,” of New Zealand. 403 
Bureau of Plant Industry, Department of Agriculture, Washington, D.C., 
.S.A., for contributions of specimens in exchange: and Dr. E. J. Butler 
(Director) and Mr. E. W. Mason, Bureau of Mycology, Kew, England, for 
literature, references, &c. 
i e ; 
(2) Neovossia, (3) Tuburcinia, (4) Urocystis, (5) Entyloma, (6) Burrillia, 
(7) Doassansia, and (8) Tracya. Of these, Dietel (1900) includes Cintractia 
Anthracoidea Bref. and Poikilosporium Dietel. racoidea is now con- 
sidered to be a synonym (and in this paper listed as such) of Cintractia ; 
the second, accordin inton, is a synonym ra. To those 
proposed from time to time, Rhamphospora D. D. Cunn. is placed by Clinton 
under Entyloma ; Doassansiopsis Setch. is placed by the same author under 
Doassansia ; Cornuella Setch. is placed by Sydow (1901) under the genus 
racya ; Graphiola Poit. is no longer considered to belong to this suborder ; 
and Cerebella Ces. is considered by Saccardo (1886) to be an Hyphomycete. 
KEY ro GENERA. 
Spores single, not in 
Sori pulverulent at maturity. 
Sori naked at maturity. 
absent from the sori. * 
Probasidia ly with lateral conidia . 1. Ustilago.* 
Probasidia usually with terminal conidia 5. Tilletia.* 
Elaters present in the sori oe ve eae yces. 
Sori enclosed within a definite fungous membrane 4. Sphacelotheca. 
Sori compact. 
Central columella of host-tissue present in the sorus . 9. Cintractia. 
Central columella absent р г. .. . 5. Tilletia.* 
Spores aggregated i 
Sterile cells present . 7. Urocystis 
Sterile cells absent . 6. Sorosporium. 
* There is really no satisfactory key character upon which to separate these two 
genera; for the characters upon which separation is based, see under the respective 
genera. 
