CODONOTHECA AND CROSSOTHECA: POLLENIFEROUS STRUCTURES OF PTERIDOSPERMS.
Darrah William C.
CODONOTHECA AND CROSSOTHECA: POLLENIFEROUS STRUCTURES OF PTERIDOSPERMS. - - Botanical Museum Leaflets, Harvard University ; Vol. 4, No. 9: pp. 153-155, 157-159, 161-165, 167-169, 171-172 .
CODONOTHECA AND CROSSOTHECA: POLLENIFEROUS STRUCTURES OF PTERIDOSPERMS. - - Botanical Museum Leaflets, Harvard University ; Vol. 4, No. 9: pp. 153-155, 157-159, 161-165, 167-169, 171-172 .