330 Scientific Proceedings, Royal Dublin Society. 



5. T. S. basal vegetative leaf of female cone, text-fig. 1 (a) ; latter 



about one inch long. On April 7. (x 40.) 



6. T. S. typical bract of same cone : cf. text-fig. 1 (e). (x 24). 



7. L. S. ovule, to show micropylar arrangement. One pollen grain is 



embedded in the hairs. April 7. (x 180.) 



8. L. S. archegonium. May 27. (x 180.) 



9. T. S. ovule, to show five archegonia, with coalescing jacket-layers. 



May 27. (x 40.) 

 10. T.S. top of archegonium, showing four neck-cells. May 27. (x 150.) 

 11, 12, 13. Typical stages of embryo formation. June 15, June 23, July 7, 

 respectively, (x 150.) 



In the fig. 13 the suspensor-like tubes are "embryonal cells." 



