814 Conjugatse, Des!nidiace?e, Mesotcieniura. 



Sectio II. Eu-mesotcenium Hansg. Protlr. p. 174. 



Species in aqua vigentes; cellulae libere natantes vel gelatina tenuissima 

 insiraul consociataj. 



9. Mesotaenium Endlicherianum Naeg. Einz. Alg. p. 109, t. VI B, 1943 

 Ilansgirg Prodr. p. 174, n. 308, Wolle Desm. U. S. p. 32, t. 111, 



i". 11, Palmoffloca Endlicheriana (Naeg.) Rabenh. Fl. Eur. Al- 

 gar. III, p. 116. — Cellulis cylindricis, utroque polo subito late 

 rotundatis, levibus, diametro 3-4-plo longioribus; plasmate achroo; 

 chlorophoro laete viridi. Dimens. cell. 9-11 [i.. 



Hab. in fossis, paludibus hinc inde per Europam et Americam 

 borealem. — Individua nova (post divisionem factam) per aliquot 

 tempus polis sjt^pius cohferentia. — Var. grande Nordst. in Wittr. 

 et Nordst. Alg. aq. dulc. exs. n. 271, Hansg. 1. c: cellulis 28-64 

 ^ 10-14, plasmatae violaceo; ceterum ut in typo. In turfosis fos- 

 sisque Bohemijie et Sueciae. 



10. MesotaBnium De-Greyi Turner in Naturalist 1886 Feb. p. 34, t. I, i944 

 f. I et iii Notarisia 1886, p. 91, Cooke Brit. Desm. p. 48, t. 18, 



f. 6. — Cellulis 76-104 « 20-23, cylindricis, elongatis. rectis, 

 raro curvulis, haud constrictis, apicibus plus minus late rotundatis; 

 endochromate intus granuloso, globulis oleosis commixto; mem- 

 brana levi. 



llab. in stagnis ad (c Strensall Common » in comitatu ebora- 

 cense Britanniae. — Forte M. Endlicheriano Naeg. proximum. 



11. Mesotaenium obscurum Lagerh. Bidrag till Sveriges Algflora p. 1945 

 51, — Cellulis libere natantibus, in muco communi non inclusis, 

 cylindricis, 14-21 ^ 6-7, utroque tine rotundatis; chlorophoro la- 

 mina^formi, laterali, pyrenoidibus binis; plasmate subatro-violaceo. 



Hab. in stagno turfoso ad (c Kristineberg » in Bahusia Suecias 



(LArTERHEni). 



12. Mesotaenium neglectum Reinh. in Riabinine Chloroph. des en- I9i6 

 vir. de Kharkow p. 25, n. 84 (absque diagnosi). — Cellulis 26- 



48 =; 12-18. 



Hab. in stagnis etc. ad « Klionkvenoye » circa (( Kharkow » Ros- 

 siffi (B. Riabinine). 



Species excludenda^. 



1. Palmoglcea seruginosa Zanard. Phyc. Indic. p. 34, n. 79, t. IX D, 

 f 1-2 est Glcocapsa Zanardinii Hauck. 



2. Palmoglcea? aureo-nucleata Br(3b. Hedw. 1869, p. 120. 



