958 ConjugataB, Desiuiiliacee, Cosmarium. 



brana achroa, glabra. Prope «Zakopaiie» iii Tatra Poloniie (Ra- 



CIBORSKl). 



60. Cosmarium erosum Delp. Specim. Desra. subalp. p. 117, t. 8, 2297 

 f. 24-27. — Cellulis suborbicularibus, 04,8::; 61,8, medio valJe con- 

 strictis, isthmo 21-22 a. lato; semicellulis oblongo-reniformibus, 

 utriuquo prope basin subemarginatis, e latere sphsericis, e vertice 

 ellipticis, utrinque acuminatis; pyrenoidibus in utraque semicellula 

 singulis; membrana subtiliter punctis pellucidis (in cellulis evacuatis 

 tantum conspicuis) ornata. 



Hab. in lacu caadiano Italia^ borealis (Delponte). 



61. Cosmarium parvulum Breb. Liste p. 138, t. I, f. 18, Rabenh. Fl. 2298 

 Eur. Algar. III, p. 177, Wolle Desm. U. S. p. 59, t. 18, f. 12-13, 

 Cooke Brit. Desm, p. 120, t. 43, f. 8. — Parvum, ovato-ellipticum, 

 levissime constrictum (quasi excisum), utroque polo late truncatum, 

 diametro duplo triplove longius, ambitu integerrimum vel leviter 

 crenulatum; seraicellulis breviter conicis, iate truncatis, nonnun- 

 quam subretusis; membrana levi vel raro subtilissime puuctulata. 



Hah. in locis uliginosis prope cc Domfrout, Falaise)) Gallia3 (De 

 liREBissON), iu pratis paludosis inter sphagna prope « Lausigk » 

 Saxoniae (Rabenhorst), in Britannia (Cooke), Suecia (Lundell), 

 Norvegia (Nordstedt), Nova Semlia (Wille), Araerica boreali 

 (Wolle), Brasilia (Nordstedt). — Celluhe ex Lundell 44-49-^ 

 18-19, ex Nordstedt 28-34^:15-17, ex Wolle 18-22 [i. lat. 



62. Cosmarium Kitciielii Wolle Desm. U. S. p. 72, t. 18, f. 1-3. — 9099 

 Cellulis suborbicularibus, 40 a. latis, fere quarta parte longioribus 

 quam latis, profunde constrictis, sinu angusto lineari; semicellulis 

 seraicircularibus, marginibus crenulatis (crenis circiter 18), intus 

 granulis secus series 3 dispositis ornatis; area levi, exceptis 2 raro 



3 seriebus transversis granulorum in raedio dispositorum ; e vertice 

 visis ovato-ellipticis, utrinque granulis 3 instructis granulisque 

 4-seriatis ex uno in altorum apicem dispositis ornatis, e latere 

 visis circularibus, utrinque bigranulatis, series 4 centrales granulo- 

 rura pra^bentibus. 



Jlah. \n stagno prope (cHammonton, N. J.)) AmeriCcC borealis 

 (H. D. Kitchel). 



63. Cosmarium Seelyanum Wolle in Hedwigia 1883, p, 189, Desm. 2300 

 U. S. p. 73, t. 18, f. 33-35. — Cellulis parvis, 25-30 u.. latis, qua- 

 drangularibus, profunde constrictis, sinu augusto, lineari; semicel- 

 lulis e fronte duplo latioribus quam loiigis, lateribus raedio tuber- 

 culo parvo rotundato praiditis, angulis superioribus pauUo latera- 



