LIST OF LITERATURE: 
MAArrourtit, M. FA and La Riviere, H°C:C. Of 
the ribbing of the seeds of Ginkgo. — Ann. Bot. Vol. 29. 1915. 
2. Arber, Agnes. On the structure of the Palaeozoic seed 
Mitrospermum Compressum Will. — Ann, Bot. Vol. 24, 1910. 
3. Arber, Agnes. À note on Trigonocarpus. — Ann. Bot. 
Mol 26. 191%. 
4. - Arber, Agnes. À revision of the seed impressions of 
the British Coal Measures. — Ann. Bot. Vol. 28. 1914. 
5. Arber, E. À. Newell, and Parkin, J. On the origin 
of Angiosperms. — Journ. Linn. Soc. London Bot. Vol. 38. 1907. 
6. Arber, E. À. Newell, and Parkin, J. Studies in the 
evolution of the Angiosperms: the relationship of the Angios- 
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7. Attema, J. J. De zaadhuid. — Groningen 1901. 
8. Bartlett, À. W., Note on the occurrence of an abnormal 
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27-1913. 
9 Bayer, À, Zur Deutung der weiblichen Blüten der 
Cupressineen nebst Bemerkungen über Cryptomeria. — Beiheft 
Bot. Centralbl. Bd. 24, 1. 1908. 
10. Baïillon, M. H,, Recherches organogénique sur la fleur 
des Conifères. — Ann. Sc. Nat. Bot. IV Série 14, 1860. 
11. Baïillon, M. H. Nouvelles recherches sur la fleur femelle 
des conifères. — Adansonia, Vol. 5 et 6. 1864—5. 
12. Beccari O. Della organogenia dei fiori feminei del 
Gnetum Gnemon L. — Nuovo Giorn. Bot. Ital. Vol. 7. 1877. 
13. Benson, Margaret., Onanew lycopodiaceous seedlike 
organ. — New. Phyt. Vol. 1. 1902. 
14 Benson, Margaret. The fructification of Lygino- 
dendron Oldhamium. — Ann. Bot. Vol, 16. 1902. 
