NicKLEs AND BAssi.KK.] CATALOGUE OF GENERA AND SPECIES. 879 



Ptilodictvii fragilis Billings. See Dicranopora fragilis (Billings). 



Ptilodictya gigantea (Nicholson). 



1875. Heterodictya gigantea. Nicholson, Geol. Mag., new ser., II, p. 34, pi. ii, 



la-e. 

 1875. Heterodictya gigantea. Nicholson, Pal. Province Ontario, p. 79, pi. ii, la-e. 

 1882. Ptilodictya (Heterodictya) gigantea. Ulrich, Jour. Cincinnati Soc. Nat. 



Hist., V, p. 140. 

 1889. Heterodictya gigantea. Miller, North American Geol. Pal. , fig. 488 (p. 309) . 

 Upper Helderberg: Jarvis, Ontario. 



Ptilodictya Gilberti Nicholson. See Cvstodictya gilberti (Meek). 



Ptilodictya (Stictopora) Gilberti Meek. See Cystodictya gilberti 

 (Meek). 



Ptilodictya gladiola Billings. 



1866. Ptilodictya gladiola. Billings, Catal. Sil. Foss. Anticosti, p. 10. 

 Anticosti: Anticosti Island. 



Ptilodictya grahami James. See Arthropora shatiferi-cleavelandi 



(James). 

 Ptilodictya granulosa James. See Rhinidictya parallela (Jame. . 

 Ptilodictya hilli James. See Escharopora hilli (James). 

 Ptilodictya internodia Miller and Dyer. See Dicranopora internodia 



(Miller and Dyer). 



Ptilodictya kentuckyensis James. 



1881. Ptilodictya kentuckyensis. James, Paleontologist, No. 6, p. 38. 

 Cincinnati: Cincinnati, Ohio. 



Obs. Description given is not sufficient to identify the species. The form 

 may perhaps be a synonym of Arthropora shafferi-eleavelandi (James). 



Ptilodictya lanceolata var. Americana Foerste. See Ptilodictya 



expansa Hall. 

 Ptilodictj^a libana Safford. See Escharopora libana (Safford). 



Ptilodictya (Stictopora) lichenoides Meek. Not recognizable. 



1873. Ptilodictya (Stictopora) lichenoides. Meek, Pal. Ohio, I, p. 195, ])1. xviii, 2. 

 Corniferous: Whitehouse, Lucas County, Ohio. 



Ptilodictya lirata Hall and Simpson. See Pha'nopora lirata (Hall). 

 Ptilodictya maculata Ulrich. See Escharopoi'a maculata (Ulrich). 



Ptilodictya magnifica Miller. 



1878. Ptilodictya magnifica. Miller, Jour. Cincinnati Soc. Nat. Hist., I, i>. 100, 

 pi. iii, 1, la. 



1889. Ptilodictya magnifica. Miller, North American Geol. Pal., fig. 503, (p. 



318). 



1890. Ptilodictya magnifica. Ulrich, Geol. Sur. Illinois, VIII, fig. Ua-c (p. .391 ). 

 Cincinnati (Richmond): Richmond, Indiana; Oxford and Waynesville, 



Ohio; Wilmington, Illinois; Leipers Creek, Maury County, Tennessee. 



Ptilodictya Meeki Nicholson. See Cj^stodictj^a meeki (Nicholson). 

 Ptilodictya multiraniis Saliord. Not recognized. 



1869. Ptil<j(lictya multiramis. Safford, Geol. Tennessee, p. 286. 

 Obs. See note on Escharopora briareus Ulrich. 



