794 Conjugatiie, Destoidiacca?, Ppha^ro^ostna. 



lis a vertice visis oblongis, medio late constrictis; lat. 74-84 fjt., 

 long. 34-40 a., lat. isthini 22-26 a., lat. apic. 16 a., crass. 22 p. 

 Prope « Pirassununga» et ad «Lageado» in consortio Spirogyrce 

 /inea/ci' var. hrasiliensis et Hya/ollieccE dissi/ien/is var. gemiincv 

 iii Urasilia (Loefgren). — Var. triquetrum Lund. Desm. Suec. p. 93, 

 et in Hedwigia 1873, p. 109: cellulis a vertice visis trigonis, la- 

 teribus rectis, angulis oblique rotundato-truncatis ; chlorophoro cen- 

 trali; pyrenoidibus singulis; dimens. 24:^36 a., latit. isthm. 24 

 a., lat. connen. 16 a, In a Norby Skog» prope Upsaliam et ad 

 «Bergsbrunna» in Uplandia Sueciae (Lundell). — Var. constrictum 

 Wolle Freshw. U. S. t. 5'"), f. 12: cellulis dimidio longis ac latis, 

 constrictione distincta in utroque lobo inter axim et apicem ; diam. 

 70-75 a. In lacu prope aKissimme)) in Florida Americse borealis 

 (WOLLE). — Var. pianum Wolle Desm. U. S. p. 29, t. IV, f. 3-4: 

 filamentis haud tortis, minoribus, 30-38 ,a. latis; ceterum ut iii 

 typo. In fosso pr. « Metuchen » New Jersej American borealis (WoL- 

 LE). — Var. inflatum WoUe I. c, t. XLIX, f, 8: a prfficedente dif- 

 fert inflatioae centrali, inter cellulas isthmum brevem efficiente; fi- 

 lamentis 38 ^. latis. In stagnis New Jersey Amei>icfe bor. (Wolle). 



12. Spliaerozosma rectangulare Wolle Desm. Un. St. pag. 31, t. 49, >8S9 

 f. 9. — Filamentis latis, duplo longitudine latioribus, profunde 

 medio constrictis; semicellulis prope apices attenuatis sinus angu- 

 loso-acutos inter cellulas et semicellulas efficientibus; apicibus 

 truncatis, concavis; membrana levi ; diam. 50-55 a. ; crass. 18-20 (x. 



llah. in America boreali (Wolle). 



13. Spliaerozosma? nitens Wallich Desm. p. 193, t, f. 7, 10-14, t. 8, l^9o 

 f. 12-13. — Filainentis pinnatifidis; cellulis s;iepius latioribus quam 

 inngis, compressis, profunde constrictis, apicibus rotundatis ; super- 

 ficie connectivali cellularum omnino plana; cellulis e margine vi- 



sis isthmo carentibus. 



Hah. in Bengalia iVsise (Wallich). — Longit. cell. 15-20 a., 

 jat. 20-30 [f.. .^dest ex eodem loco var. cellulis isthmo bene defi- 

 nito pra^ditis, 20-25^17-30 



14. Sphcerozosma Wallichii Jacobs. Apergu p. 211, Sp/icvrozoma ex- im 

 nava/um var. /3. Wallich Desm. low. Beng. p. 187, t. 7, f. 15. — 

 Lobis abrupte truncatis, superficie eorum explanato-truncata in 

 unoquoque angulo tuberculo minuto pra^-ditis; e fronte visis tuber- 

 culis 4 et ultra donatis. 



Ifah. m Bengalia Asiaj (Wallich), in Dania (Jacobsen). — Ha- 

 bitu Sp/). excava/i. 



