1893. THE FRUIT-SPIKE OF C ALA MITES. 359 



among those of the type of Arthropitys. This, however, is a matter of 

 secondary importance compared with the fact that, after so many 

 years of controversy and doubt, we have, at last, got clear and con- 

 clusive evidence that Calanwstachys Binneyana is the fruit-spike of some 

 form of Calamites. 



REFERENCES. 



1. Carruthers, W. — On the Structure of the Fruit of Calamites. Journal of 



Botany, 1867. 



2. Schimper, "W, Ph. — Paleontologie Vegetale, vol. i., 1869. 



3. Binney, E. W. — Observations on the Structure of Fossil Plants found in 



the Carboniferous Strata. Palasontographical Society. I. Calamites and 

 Calamodendron, 1868. 

 Williamson, "W. C. — On the Organisation of the Fossil Plants of the Coal- 

 measures. Phil. Trans., 1871-1888. 



5. . — Ibid. Part I., Phil. Trans., 1871, p. 501. 



6. .—Ibid. Part V., Phil. Trans., 1874, p. 65. 



—Ibid. Part V., Phil. Trans., 1874, p. 75. 

 —Ibid. Part IX., Phil. Trans., 1878. p. 334. 

 —Ibid. Part X., Phil. Trans., 1880, p. 504. 

 —Ibid. Part XL, Phil. Trans., 1881, p. 299. 

 —Ibid. Part XIV., Phil. Trans., 1888, p. 47. 

 — Ibid. Part V., Phil. Trans., 1874, p. 54. 



13. . — General, Morphological, and Historical Index to the Author's Col- 

 lective Memoirs on the Fossil Plants of the Coal-measures. Part I. 

 Memoirs and Proceedings of the Literary and Philosophical Society of 

 Manchester. Series iv., vol. iv,, 1891. P. 14 (of reprint). 



Thomas Hick. 



