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II.—On the Structure of Calymmatotheca kidstoni Calder (emended) and Genomosperma latens gen. et sp. nov. from the Calciferous Sandstone Series of Berwickshire*

Published online by Cambridge University Press:  30 May 2017

Albert G. Long
Albert G. Long*
Affiliation:
Berwickshire High School, Duns
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Synopsis

The Lower Carboniferous fossil Calymmatotheca kidstoni Calder is shown to be a simple seed and is redescribed under the new name Genomosperma kidstoni. A second species G. latens is also described. Genomosperma gen. nov. is of interest in possessing a free nucellus with a lagenostome and short salpinx. The nucellus is surrounded by an integument of about eight lobes which are free from one another and from the nucellus from near the base of the seed. The vascular details of t h e seeds have been studied and in each species pollen has been observed in the pollen chamber.

Genomosperma is compared with various Pteridosperm seeds.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 64 , Issue 2: 1958-1959 On the Structure of “Calymmatotheca Kidstoni” Calder (Emended) and “Genomosperma Latens” Gen. Et SP. Nov. from the Calciferous Sandstone Series of Berwickshire , 1960 , pp. 29 - 44
Copyright
Copyright © Royal Society of Edinburgh 1960

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Footnotes

*

This paper was assisted in publication by a grant from the Carnegie Trust for the Universities of Scotland. Trans. Roy. Soc. Edin., Vol. LXIV, No. 2, 1958–59

References

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