554 TRAXSACTIOXS AND PKOCEEDINGS OF THE 



^ The Genus Gloiopeltis, Bj the late Professor Fr. 



0^ ScHMirz, Grlifswald. 



I ' Read 10th Januarj- 1895. 



The typical species of the modern genus Gloiopeltis, 

 J. Ag , was first described and figured by Turner ^ in the 

 year 1806, under the name Fucus^ tenax? Turner obtained 

 the material for his species, through Sir Joseph Banks and 

 Mr. Goodall, from China, where the Alga grows " on almost 

 every part of the coast." His drawing in the " Historia " 

 shows a well-developed sterile and a smaller fertile 

 example of the Alga, the latter provided with numerous 

 fructifications which stand out clearly as roundish eleva- 

 tions on the branched thallus. 



On the Alga which C. Agardh ^ mentions, under the 

 name of S'pliccrococcus tenax, as " species Mihi imruiii nota," 

 J. Agardh^ founded, in lS-i2, his new genus Gloiopeltis, 

 and there is no doubt that he knew amongst the characters 

 of the plant, from personal examination, alike the 

 anatomical structure and the form of the fructification. 



Kiltzing' in 1849 accepted Agardh's genus unchanged, 

 and expressly adds '"' n. v." to the description of the typical 

 species. His drawing ^ of an example of the fructification 

 of Gloiopeltis tenax is, as he himself states (I.e., p. 4), taken 

 from Turner. 



In 1851 J. Agardh" included as another species in the 



genus, Gloiopeltis, the xVlga from the northern part of the 



Pacific Ocean, which Postels and Euprecht ^ had described 



in 1840 under the name Dumontia /areata, and gave the 



following characters for the genus : — " favellidia intro 



pericarpium hemisph^erice elevatum, carpostomio demum 



apertum, nidulantia, gemmidiis inter fila a placenta ad 



pericarpum excurrentia evolutis ovato-angulatis, in nucleum 



laxius coalescentibus constantia." 



1 Konig & Sims, Ann. of Bot., ii. 376, t. 13. 



' A further des("ription and ficr. of this species is to be found in 

 Historia Fucorum, t. 141-14:2, t. 125, by the same author. 

 ^ Sp. Algarum, i. 325. 

 * Alg. Mar. Medit., 68. 

 ^ Sd. Algarum. x. 754. 

 c Tab. Phycol., xviii. t. 10. 

 ■ Sp. G. 0. Florid.. 231-23C. 

 8 Hi. Alg., 19. 



