Johnson — A Seed-bearing Irish Pteridosperm, 11 



3. Calymmatotlieca Stcmgeri, Stiir, described by Stur bimself as, at the most, 

 a variety of C. Hoiiiiighctmi, occurs in oontiimity with S. Hmiiiighausi, i.e. 

 Lyginodendron oldhamium, and is simply the de-semiuated fertile frond of this 

 type. 



4. In the Irish specimen described from the Coal Measures, Glengoole, 

 County Tipperai'y, a &&eA, judging from the carbonaceous impression, is present, 

 still attached to the parent plant, and seated in the midst of the radiating 

 cupular lobes. 



5. This seed, as far as can be ascertained, presents the usual characters 

 of a Lagenostoma seed. It is 6 mm. long and 2 mm. broad, radiospermie, 

 elliptic, and apparently ridged. 



6. Tlie " *S. sjiinosa " condition shows that the cupular lobes are modified 

 foliar segments, as is apparently the ovuliferous body. 



7. The male [Crosso/heca) and female [Calgmmatolheca) conditions are 

 foliar in nature, and present many features in common. 



SCIENT. PROC, E.D.S., VOL. XUI., NO. I. 



