30 NEW YORK STATE MUSEUM 



Prismodictya baculum Hall (sp.) 

 x 57 24 i 86 type Dictyophyton baculum Hall. 35th an- 

 nual report of the New York state museum of natural 

 history. 1884. p. 471. 



Prismodictya baculum Hall & Clarke. New 

 York state museum memoir 2. 1898. pi. 18, fig. 3. 

 Chemung beds Wellsville N. Y. 



Prismodictya cercidea Hall & Clarke 

 !^8 2^87 plastotype Prismodictya cercidea Hall & 

 Clarke. New York state museum memoir 2. 1898. 

 p. 89, pi. 20, fig. 1. 



Chemung beds Wellsville N. Y. 



Prismodictya cithara Hall & Clarke 



1 59 " i r^ plastotype Prismodictya cithara Hall & 



Clarke. New York state museum memoir 2. 1898. 

 p. 90, pi. 35, fig. 3. 



Chemung beds Scio N. Y. 



160 2J £ & p-astotype Hall & Clarke. New York state museum 



memoir 2. 1898. pi. 35, fig. 1, 2. 



Chemung beds Scio N. Y. 



Prismodictya conradi Hall (sp.) 



161 24&S- type Dictyophyton conradi Hall. 16th an- 



nual report of the New York state cabinet of natural 

 history. 1863. p. 89, pi. 5, fig. 2 ; pi. 5a, fig. 2. 



Hall. 35th annual report of the New York state museum 

 of natural history. 1884. pi. (17) 18, fig. 3, 4, 4a. 



Prismodictya conradi Hall & Clarke. New 

 York state museum memoir 2. 1898. pi. 18, fig. 4; 



PL i9> fi g- 5> 6 - 



Chemung beds Randolph N. Y. 



Prismodictya filitextilis Hall (sp.) 



162 --i 2 -- plastotype Dictyophyton filitextile Hall. 



1 6th annual report of the New York state cabinet of 

 natural history. 1863. p. 88, pi. 4, fig. 5. 



Prismodictya filitextilis Hall & Clarke. 

 New York state museum memoir 2. 1898. pi. 21, fig. 7. 



Chemung beds Steuben county, N. Y. 



163 SA ^ Jl hypoplastotype Hall & Clarke. New York state 



museum memoir 2, 1898. pi. 27, fig. 4. 



Chemung beds Wellsville N. Y, 



