140 KEFERENCES TO THE PLATES. 



Plate XI^VIII. A. — Petalonema cdatum, Berk. p. 99. 



B. — Microcoleus corymhosw, Harv. p. 109. 



C.^Calothrix pilosa, Harv. p. 106. 



D Calothrix dura, Harv. p. 107. 



.. XLIX. A — Bangia vermicularis, Harv. p. 55. 



B Pikea Ccdifornica, Suppl. p. 131. 



, L. A. — Dasya Harveyi, Ashm. Suppl. p. 127- 



B Chondria nidifica, Harv. Suppl. p. 125. 



PUBLISHED BY THE SMITHSONIAN INSTITUTION, 

 WASHINGTON CITY, 



MABOH, 18S8. 



