THE PALZOZOIC SEED LAGENOSTOMA OVOIDES. 487 
for us another link with their Pteridophytie origin, even in those organs 
which raise them to a higher phylum—their seeds. 
February 1912. 
I wish to thank my friend Mrs. Hatfield for her sympathy and help in my 
work. 
To Professor Oliver I owe not only individual help and criticism, but the 
stimulus his work must afford all who attempt to labour in the realm of fossil 
seeds. 
VI. LITERATURE CITED. 
ARBER, Е. A. N., 1905.—On some new Species of Lagenostoma. Proc. 
Roy. Soc. В. Ixxvi. р. 245. 
. Benson, M. J., 1908.—On the Contents of the Pollen-chamber of а 
Specimen of Lagenostoma ovoides. Bot. Gaz. xlv. p. 409. 
. Berrier, E. M., 1911.— Оп some Points of Resemblance between 
Gnetalean and Bennettitean Seeds. New Phytologist, x. p. 140. 
. ВектвАхр, C., 1909.—Altération de l'endosperme de graines silicifiées. 
Compt. Rend. Assoc. Fr. Áv. Sc. xxxvii. p. 524. 
. Снорат, R., 1908.— Тез Ptéropsides des temps paléozoiques. Archives. 
des Sciences physiques et naturelles, tome xxvi. 
6. COULTER, J. M., and | 1910. Morphology of Gymnosperms. Cambridge 
CHAMBERLAIN, C. R. J University Press. 
7. KrensHAw, E. M., 1911 [1912].—Structure and Development of the 
Ovule of Bowenia spectabilis. British Assoc. Report, p. 567. 
8. Lane, W. H., 1900.—The Ovule of Stangeria paradoxa. Annals of 
Botany, xi. p. 421. 
9. Licnier, O., 1911.—Le Bennettites Morierei (Sap. et Mar.) se reproduisait 
probablement par parthénogénése. Bull. Soc. Bot. de France, viii 
p. 224. 
10. Отлуекв, Е. W., 1902.—A Vascular Sporangium. New Phytologist, i. 
p. 60. 
11. —— 1903.—Notes on Fossil Fungi. New Phytologist, и. р. 49. 
12. 1903.— The Ovules of the Older Gymnosperms. Annals of Botany, 
xvii. p. 451. 
13. 1904.—On the Structure and Affinities of Stephanospermum, 
Brongniart, a Genus of Fossil Gymnosperm Seeds. Trans. Linn. Soc., 
2nd ser. Bot., vi. pt. 8. 
14. 1909.—On Physostoma elegans. Annals of Botany, xxiii. p. 73. 
a On the Structure and Affinities of the Palo- 
15. Orıver, F.W and Y 1911. zoic Seeds of the Conostoma Group. Annals. 
‚Е. J. 
SALISBURY, J of Botany, xxv. p. 1. 
