The New Phytologist. 
Vol. XVII. Plate II. 
Fig. 1. Nitophyllum litteratum. \ nat. size a. old fronds, b. new leaflets. 
Fig. 2. Nitophyllum litteratum. i nat. size. a. primary portions, 
b. secondary portions, c. tertiary growths. 
Fig. 3. Callymenia reniformiis. £ nat. size, a frond, b. new growths. 
LYLE -DEVELOPMENTAL FORMS OF MARINE ALG.-E. 
