Concepedia

HETEROSPORY AND THE ORIGIN OF THE SEED HABIT

J. M. Pettitt

Biological reviews/Biological reviews of the Cambridge Philosophical Society · 1970 · 65 citations · 27 references

DOI

Concepts

References

27

The Identity of Archaeopteris and Callixylon

Charles B. Beck · Brittonia · 1960 · 162 citations

, , +8

Spores and land-plant evolution

William G. Chaloner · Review of Palaeobotany and Palynology · 1967 · 82 citations

, , +12

Early Seed Plants

Henry N. Andrews · Science · 1963 · 74 citations

An acetolysis-resistant membrane investing tapetum and sporogenous tissue in the anthers of certain Compositae

J. S. Heslop‐Harrison · Canadian Journal of Botany · 1969 · 73 citations

, , +16

Archaeosperma arnoldii-A Cupulate Seed from the Upper Devonian of North America

J. M. Pettitt, Charles B. Beck · Deep Blue (University of Michigan) · 1968 · 71 citations · Full text

, , +9