340 



CARDIOCARPALES 



[CH. 



Bertrand 1 from Cardiocarpus on the ground that the integumental 

 bundles pursue a course like that in Rhabdospermum ; it is now 

 referred to the new genus Cyclospermum 2 . 



FIG. 501. A, Cardiocarpus sclerotesta in longitudinal section; pc, pollen-chamber, 

 b, tent-pole, a, archegonia. B, transverse section; a, archegonia. D, cast 

 of the same or a similar type of seed. C, E, Rhabdospermum cydocaryon, 

 longitudinal section and a diagrammatic sketch of the seed-base; m, micro- 

 pyle; b, tent-pole; a, archegonium. (A, B, C, after Hrongniart; D, after 

 Renault and Zeiller; E, adapted from Brongniart.) 



Cyclosperimim. Gen. nov. (= Cyclocarpus Bertrand). 



As stated on a previous page Bertrand 3 re-establishes the 

 generic name Cyclocarpus, founded on impressions without reference 

 to anatomical characters, for two petrified seeds from St Etienne 



1 Bertrand, C. E. (08). 



2 This name has been used for a section of a genus of recent Umbelliferae 

 but not as a generic name (De Candolle's 'Prodromus,' Pars iv. p. 105, 1830). 



3 Bertrand (08 3 ) p. 454; (08 2 ) p. 392. 



