EXPLANATION OF THE PLATES. 
Pirates VIII-XI.—Purpie Ciirr-Brake. Pellea atropurpurea. Plate 
VIII.—r. Young plant attached to prothallus. 2-5. Young leaves in early 
stages of development. Plate IX—t1, 2. Young fertile leaves. Plate X.— 
Mature highly developed sterile leaf. Plate XI.—1. Mature highly developed 
fertile leaf. 2. Fertile pinnule, X 24. 
