41 



F. Borgesen: Phæophyceæ of the Danish W. Indies. 



II. Cyclosporales. 

 Fam. 1. Dictyotacece. 



Zonaria Draparn. 

 1. Zonaria variegata (Lamx.) Mert. 



Mertens in Martius, Icones plant, cryptog., p. 6, tab. II, fig. II 1 ). 

 Richards, H. M., Notes on Zonaria variegata, Lamx. (Proceed, of the 

 American Acad, of Arts and Sciences, 1890). Sauvageau, C, Observations 

 sur quelques Dictyotacées et sur un Aglaozonia nouveau (Bullet, de la 

 Station biolog. d'Arcachon, 8, 1904—5). Vickers, A. , Phycologia Barba- 

 densis, part II, pi. VI b. 



Dictyota variegata Lamx., Essai, p. 57, tab. V, figs. 7 — 9. 



Gymnosorus variegatus (Lamx.) J. Ag., Analecta algolog., cont. I 

 p. 11, 1894. 



Fig. 25. Zonaria variegata (Lamx.) Mert. 



Transverse sections of the thallus. a, with a young sorus upon the upper 



side and old, emptied sporangia upon the lower; b, with a group of hairs 



upon the lower face ; c, of a young thallus. 



(a, about 50:1; b, c, about 90:1). 



In the above mentioned important paper, Sauvageau has in 

 much detail described specimens of this plant, collected by him 

 at Teneriffe. 



] ) The figure is rather unlike my specimens. 



