XXVIII] 



REPRODFOTIVB SHOOTS 



21 



Fig. 392. A. Cycas pectinata, apex of megasporophyll. (f nat. size.) 

 B, C. Cycas Riuminiana, megasporophyll. (J nat. size.) 



D. Eficephalartos AUensteinii. Distal end of megasporophyUs. (rrom 



the Gardeners' Chronicle.) 



E, F. Cycas angulata, miorosporophyll and sorus. 



G, I. Ceratozamia mexicana, I, microsporophyll with soars of sori (s) ; 



G, sorus. (After Thibout.) 

 H. Stangeria paradoxa, megastrobilus. 



