216 



Voltzia appears first in the Upper Carboniferous of the Northern 

 Hemisphere, and extends to the Permian, Triassic, and Rhsetic. 

 It is also found in the Permo-Carboniferous rocks of Gondwanaland. 

 It is one of the earliest known members of the group, and is 

 unlike any recent family of Conifers, although it stands nearest 

 to the Araucariese. 



Voltzia heterophylla, Brongniart. 

 (Text-fig. 48.) 



1828. Voltzia heterophylla, Brongniart, Prodr. Hist. Veget. foss., p. 108. 

 V. brevifolia, Brongniart, ibid., p. 108. 

 V. rigida, Brongniart, ibid., p. 108. 



V. heterophylla, Brongniart, Ann. Sci. ^Nat., vol. XV, p. 451. 

 V. brevifolia, Brongniart, ibid., p. 499, pi. xv ; pi. xvi, tigs. 1-4 ; 



pi. xvii, fig. 1. 

 V. rigida, Brongniart, ibid., p. 450, pi. xvii, fig. 2. 

 V. clegans, Brongniart, ibid., p. 450, pi. xvii, fig. 3. 

 1844. V. heterophylla, Schimper & Mougeot, Monogr. Plant, foss. Gres 



bigarre, p. 25, pis. vi-xiv. 

 1850. V. heterophylla, Goppert, Monogr. Foss. Conif., p. 194, pi. xxiii, 

 figs. 1-6. 



1864. V. heterophylla, Goppert, Palseontogr., vol. xii, p. 232, pi. xlvii, fig. 1. 

 V. heterophylla, Weiss, JS T eu. Jahrb. Miner., p. 287, pi. v, figs. 1-10. 



1865. V. heterophylla, Heer, Unvelt Schweiz, p. 52, text-fig. 30. 

 1870-2. V. heterophylla, Schimper, Traite, vol. ii, p. 241, pi. lxxiv, figs. 1-7. 



1879. V. heterophylla, Feistmantel, Flora Gondw. Syst., vol. iii, pt. 1, 

 p. 28, pi. xxii ; pi. xxiii ; pi. xxiv, ? fig-. 4 ; pi. xxv. 



1881. V. heterophylla, Feistmantel, ibid., vol. iii, pts. 2, 3, p. 122, pi. xlviiA, 



figs. 20, 22, 24, ?19. 



1882. V. heterophylla, Feistmantel, ibid., vol. iv, pt. 1, p. 43. 



1885. V. heterophylla, Benault, Cours Bot. foss., 4 e ann., p. Ill, pi. xiii, 



figs. 1-6. 



1886. V. heterophylla, Feistmantel, Flora Gondw. Syst., vol. iv, pt. 2, p. 45. 

 V. heterophylla, Blanckenliorn, Palasontogr., vol. xxxii, pt. 4, 



pp. 135, 141, pi. xxii, figs. 17-20. 

 1893. V. heterophylla, Oldham, Man. Geol. India, pi. opp. p. 158. 



1900. V. heterophylla, Zeiller, Elem. Faleobot., p. 267, text-fig. 192. 



1901. V. heterophylla, Schiitze, Jahresb. Ver. Naturk. Wiirtembnrg, 



vol. lvii, p. 244. 

 1903. V. heterophylla, Leuthardt, Abhand. Schweiz. palaont. Gesell., 

 vol. xxx, p. 10, pi. iv, figs. 2-5. 



Type. ? Museum d'histoire naturelle, Paris. 



