ZAMITES. 79 



of fossil leaves may possibly lead to the institution of other genera 

 with more narrowly defined characters. 



Zamites Buchianus 1 (Ett.). 



[PL III. Figs. 1-5 ; PL IV. ; PL VIII. A.] 



1847. Pterophyllum saxonicum, Goppert, Nova Acta Ac. Cses. Leop.-Car. 



vol. xxii. p. 362, pi. xxxviii. fig. 13. 

 1852. Pterophyllum Buchianum, Ettingshausen, Abh. k.-k. geol. Reichs. vol. i. 



Abth. iii. No. 2, p. 21, pi. i. fig. 1. 



1856. ? Dioonites Buchianus, Bornemann, Organ. Rest. Lettenkohl. p. 57. 

 1867. Pterophyllum saxonicum, Ettingshauseu, Sitz. k. Ak. Wiss. Wien. 



vol. Iv. Abth. i. p. 11, pi. i. figs. 11 and 12. 



1870. Dioonites Buchianus, Schimper, Trait, pal. ve'g. vol. ii. p. 149. 

 Dioonites saxonicus, Schimper, ibid. p. 211. 



1871. Zamites Gopperti, Schenk, Palseontographica, vol. xix. p. 11, pi. iii. 



fig. 6. 



1879-80. ? Dioonites abietinus, Hosius and von Marck, Palceontographica , 

 vol. xxvi. p. 213, pi. xliv. fig. 199. 



1889. Dioonites Buchianus, Fontaine, Potomac Flora, p. 182, pis. Ixviii.-lxxiv. 

 Dioonites Buchianus var. angustifolius, Fontaine, ibid. p. 185, pis. 



Ixvii., Ixviii., and Ixxi. 



Dioonites Buchianus var. obtusifolius, Fontaine, ibid. p. 184, pi. clxviii. 

 fig. 3. 



1890. Zamiophyllum Buchianum, Nathorst, Denkschr. k. Ak. Wiss. Wien. 



vol. Ivii. pp. 46 and 49, pi. ii. figs. 1 and 2 ; pi. iii. ; pi. v. fig. 2. 

 Zamiophyllum Naumanni, Nathorst, ibid. p. 47, pi. v. fig. 1. 

 1894. Zamiophyllum Buchianum, Yokoyama, Journ. Coll. Sci. Japan, vol. vii. 



pt. iii. p. 223, pi. xx. fig. I ; pi. xxiii. fig. 6 ; pi. xxvii. fig. 5a, b ; 



pi. xxviii. figs. 1 and 2. 

 Zamiophyllum Buchianum var. angustifolia, Yokoyama, loc. cit. p. 224, 



pi. xxii. fig. 4 ; pi. xxv fig. 5 ; pi. xxviii. figs. 8 and 9. 

 Zamiophyllum Naumanni, ibid. p. 225, pi. xxii. fig. 3 ; pi. xxvi. 



Type. Portion of frond. Collection of Herr Hohenegger, Teschen. 2 

 Ettingshausen defined the species as follows : " P. fronde pinnata, 

 pinnis circa 1-2 dm. longis, 4-7 mm. latis, alternis, linearibus, 

 subremotis, subangulo acuto adnatis, nervis creberrimis, tenuissimis 

 instructis; rhachide crassiuscula." 



The type specimen is described as the middle portion of a frond 



1 Possibly Zamites Milleri, Zigno, may prove to be identical with this species 

 (Zigno, Flor. foss. Oolit. vol. ii. p. 40, pi. xxx. fig. 6 ; Hugh Miller, Testimony 

 of the Rocks, p. 434, fig. 136). 



2 Ettingshausen (A. 4), p. 32. 



