Contribution. t 



12? 



^ ■ Gen. Prasiola (Ag.) Jess. 



]. c. Ag. Spee. Alg. Ij p. 416; char. mut. 



Prasiola furfuracea (Mert.) Menegh. 



Cenni p. 36; TJlva furfuracea Mert. in Fl. Dan. t 1489. 

 Beser, Prasiola furfuracea Lagcrst. Monogr. p. 31. 



^'ig. 



Exsi 



CC. 



» 



» 



» 



» 



» 



j) 



n 



n 



n 



Grev. Alg. Brit. t. 18. 



Jess. 1. c. t. 3, flg. 1 — 10. 



Lagerst. 1. c. fig. 3, 



Aresch. Alg. ScaniL exsicc. Nr. 221. 



Wittr. et Nordst. Alg. exsicc. Nr. 49, 438, 642. 



At East-Knmarken I three times met with this spedes 

 growing on rocks as far down on the sea-shore tliat it al- 

 most constantly was washed over by the waves, or at or si 

 little above high-water mark, in the same hight as Bhizo- 

 donium riparmm and EnfcromorpJia micrococca. Cp. Wittr. 

 et Nords t. Alg. exsicc. Nr. 642. Sometimes it grows si- 

 de by side or eventogether with P. stipitata. Cp. Wittr. 

 et N r d s t. 1. c. Nr. 435 and 438. 



Distribution: Fonnd at Mehavn, Vardo and Pasvig. I 

 tave also seen it at several other places, but at some di- 

 stance Irom the shore. 



Prasiola Lenormandiana Suhr 



sec. Jess. Monogr. p. 17. 

 Beser. Prasiola leprosa Lagerst. Monogr. p. 33. 



Jess. Monogr, t. 2, fig. 17—23. 



„ „ AVittr. et Nord»t. Alg. exsicc. Nr. 643. 



Sy7i. Prasiola leprosa Rabenli. Fl. Eur. Alg. 3, p. 309; non.. Kli tz. 



I agree with L a g e r s t e d t (1. c.) regarding this 

 plant a separate species. I at least never saw any transi- 

 tion to P. furfuracea, though it rather mnch reminds of 

 *hat species. It is distingnished from the latter especially 

 V its smallness and the shape of the frond, and it appears 

 ^^ rae to be pretty well differentiated. As the description 

 ^^ -P. leprosa Ktitz, in Phyc, germ. and Spee. Alg. referg 



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