XXVIIl] 



STROBILI 



through which the stem subsequently pushes its way consist 

 of a varying number of micro- or mega-sporophylls in dense 

 spirals on the axis of an elongated or oval strobilus (figs. 386, B, 

 393, 394). The microsporophylls are occasionally verticillate 1 . 



B 



FIG. 381. A. Cycas revoluta, megasporophylls. 

 B. Zamia Loddigesii, branched stem. 



The strobili are sometimes though rarely branched 2 and 

 generally but by no means invariably 3 terminal on the main 

 stem which branches sympodially 4 . A striking example of 



1 Thibout (96). 



2 Thibout (96) PL iv. fig. 3. A branched microstrobilus of a Macrozamia is 

 exhibited in the Botanical Department of the British Museum. 



3 Pearson (06). 



4 Solms-Laubach (90); South and Compton (08); Smith, F. G. (07). 



