CYCADOFILICALES 



39 



Aneimites.— In 1904 White (49) announced the discovery of 

 seeds upon fronds of Aneimites {Adiantites) from West Virginia, the 

 seeds having been used to estabhsh the seed genus Wardia. Anei- 

 mites is represented in the Lower Coal-measures, the general habit 

 of the leaf and its cuneate ultimate divisions strongly suggesting 



Fig. 40. — Neuro[>teris heterophylla: seed [Rhahdocarpiis) attached to a short 

 pedicel bearing foliage; X2. — From photograph by KiDSTON (44). 



Adiantum (figs. 41 and 42). The seeds are borne upon somewhat 

 reduced fronds, occurring singly or in pairs upon pedicels that replace 

 ultimate pinnules. They are rhomboidal in outline and thin lenticu- 

 lar in transverse section, the outer covering (cupule or integument) 

 being laterally dilated and winged, especially below the middle 

 (fig. 43) , possibly fibrous or slightly fleshy, and inclosing the less rhom- 

 boidal and nutlet-like structure within; unfortunately no internal 

 structure is preserved. Such seeds have been found in all stages of 



