340 



CAEDIOCABPALES 



[CH. 



Bertrand^ from Cardiocarpus on the ground that the integumental 

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

 referred to the new genus Cyclospermum^ 



Fig. 501. A, Cardiocarpus sclerotesiainlongitudinal section; pc, pollen-chamber, 

 b, tent-pole, a, archegonia. B, transverse section; a, arohegonia. 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; to, mioro- 

 pyle; b, tent-pole; u,, archegonium. (A, B, C, after Brongniart; D, after 

 Renault and Zeiller; E, adapted from Brongniart.) 



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



As stated on a previous page Bertrand^ re-estabhshes the 

 generic name Cyclocarpus, founded on impressions without reference 

 to anatomical characters, for two petrified seeds from St ^fitienne 



» Bertrand, C. E. (08). 



^ This name has been used for a section of a genus of recent UmbeUiferae 

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

 3 Bertrand (08=) p. 454; (08^) p. 392. 



