Contribution
Ovule Ontogeny in Williamsonia Carr.
Sharma, B. D.
Palaeontographica Abteilung B Band 148 Lieferung 4-6 (1974), p. 137 - 143
publié: Nov 28, 1974
Mots-clefs
ovule, ontogeny • Williamsonia, ontogeny of ovule
Palaeontographica Abteilung B Band 148 Lieferung 4-6 (1974), p. 137 - 143
publié: Nov 28, 1974
ovule, ontogeny • Williamsonia, ontogeny of ovule