u 



Dansk Botanisk Arkiv, Bd. 2. Xr. 2. 



J. Agardh 1 ) was the first to point out that the mutual 

 arrangement of the hairs and the frutifying organs could be used 

 to distinguish the species. Later on Hauck^) put this into 



Fig. 27. Padina Sanctæ Crucis nov. spec. 

 a, cells from the lower face of the thallus. b, transverse section of thallus 

 near th3 base, c, transverse section of the margin of the thallus with a 

 young group of hairs, d, vegetative cells from the surface together with 

 sporangia and indusium. e, transverse section of the thallus with sporangia 

 and hairs. (About 90 : 1). 



J ) J. Agardh, Till Algernes Systematik, 2dra Afdeln., p. 115. (Lunds 



Univ. Årsskrift, T. XVII). 

 '-') F. Hauck, Ueber einige von I. M. Hildebrandt im Rothen Meere 



und Indischen Ocean gesammelte Algen ("Hedwigia", vol. 26, 1887, p.41). 



