70 Palmer — Ferns of f lie Dismal Swamp, Virginia. 



EXPLANATION OF PLATE I. 



Figs. 1, 2, 3. Dryopteris goldieana celsa. First prothallinm fronds, enlari);ed 



about twice. 

 Fig. 4. Second frond of same, natural size. 

 Fig. 5. Tliird frond of same, slightly enlarged. 

 Fig. 8. Fourth frond of same, reduced one-third. 



Figs. 6, 9, 10, 11, 12. Lower basal pinnules of same, reduced ono-thiid. 

 Fi(i. \'^. Dri/opter is ffoldieana goldieana. Lower basal pinnules, fi-om jioorly 



shaded frond, reduced one-third. 



Fig. 14. The same, from an ordinary frond. 



Fig. 7. Plants growing in moss on a dead cypress knee above higli- 

 water mark. 



Figs. 1-5 were drawn from the fronds; Fitrs. (> and 8-14 from tracings of 

 photographs, the fronds being used as negatives. 



