t^rotococcoideaB, l^almellacece, kodoessa. 629 



latuin, magnitudinis ratione longe stipitatum, postea oblongum; sti- 

 pite gracillimo, cellula sequali vel duplo triplove longiore, 1 y.. cr. 

 Hab. in Mougeotia, ad «Neudamm» in Neomarchia; in fi- 

 lamentis Vaucheria) et Cladophorae in Rossia (Reinhard^ 

 Riabinine). 



39. Characium sessile Herm. 1. c. n. 19, t. VII, f. 6, Rabenh. FI. 1479 

 Eur. Algar. III, p. 89, WoUe Freshw. Alg. U. S. p. 177, t. 159, 



f. 1. — Globosum, sessile, 7-9 a. latum, dimidio longius, subdepres- 

 sum, postea apice rostriformi paullum productum ; plasmate saepius 

 in corpusculum globosum conglobatum. 



Hab. imprimis in Mougeotia^ filis in Germania (Hermann) 

 et Araer. bor. (Wolle). 



40. Characium? apiocystlforme Herm. I. c. p. 30, n. 20, t. VII, f. 11, i48o 

 Rabenh. Fl. Eur. Algar. III, p. 89. — Initio globosum, sessile, 

 setate provecta oblongum vel obovatura, apice obtusum vel rotun- 

 datum , basi substipitiformi contractum ,- cytioplasmate in partes 

 2-16 partito. 



Hab. in Po ta moge tonis foliis in Neomarchia (?). 



41. Characium? chlamydopus Herm. I. c. n. 21, t. VII, f. 12, Rabenh. I48i 

 FI. Eur. Algar. III, p. 89. — Ovatura, apice rotundatura, basi in 

 stipitem brevem acutatum productum. 



Hab. m ligno marcido sub aqua in Neomarchia (?). 



Species cujus diagnosis mihi liaud innotuit. 



42. Characium rostratum Reinli. Charac. p. 20, f. 6, Riabinine Ciilo- i482 

 roph. de Kharkow pag. 20, n. 54. — Cellula (ex Riabinine) 26- 



28 ^ 5,5. 



Hab. in filaraentis Confervacearura in Rossia (Reinhard, 

 Rubinine). 



Genus dubium, accuratius inquirendum. 



RODOESSA Perty [1852] KI. Lebensf. pag. 216 (Etyra. raihi plane 

 ignota), Rabenh. Fl. Eur. Algar. III, pag. 90. — Cellulas pirifor- 

 raes, hyalinae, plus rainus numerosse, basi stipitiforrai-attenuata ia 

 fasciculura radiantera non mobilem concretae; plasma viride, con- 

 globatum. 



Obs. Genus cum Characio A. Br. et Peroniella Gobi compa- 

 randura. 



1. Rodoessa grimselina Perfy Kl. Lebensf. p. 210, (. XVII, f. 17, \m 



