886 Coujtigatee, JDesmidiaceae, Disphinctiiinl. 



laribus; meiiibrana achroa, maculis conico-YerrucGeformibus, super- 

 ficie membranaB prominentibus, in series longitudinales ordinatis 

 muuita. 



Ilab. in turfosis prope «Nameszto» in Hungaria (Istvanffi). 

 — Differt a Disphintio grande Delponte forma minori, membrana 

 maculis praidita, a Pleuroiceniopsidel tessellata (Delp.) De-Toni j 

 cellula vix constricta, semicellulis ovatis, membrana maculis verru- ; 

 cseformibus in series longitudinales ordinatis ornata. 



18. DisphinctiumJ bifarium (Joshua) De-Toai, Cosmarium bifarium 2137 

 Joshua Burmese Desmidiese p. 649, t. XXV, f. 5-6 et in Notarisia 

 1886, pag. 80. — Parvum, paulo longius quam latum, profunde 

 constrictum, sinu anguste lineari; semicellulis subovatis, angulis 

 rotundatis, minute regulariter granulatis, prominentiis, 5-6 magnis, 

 sphaericis, in series duas horizontales dispositis ; a vertice conspe- 

 ctis subsphoericis, ulroque latere polari prorainentiam rotundatam 

 elongatam ferentibus. 



Rab. in stagnis pr. a Rangoon » in Birmania Asise. — Crassit. 

 sine papillis 15 a. Diam. 25^23. Latit. isthm. 6 [>.. 



19. Disphinctium pluviale (Breb.) Reinsch Spec. Gen. Alg. Fung. 1867, 2138 

 p. 31, t. II, f. 1-5, Cosmarium pluoiale Breb. in Rabenh. Alg. 



n. 1642!, FI. Eur. Aigar. III, p. 177, Archer in Pritch. Inf. p. 734. — 

 Parvum, oblongo-angulosum, subbiscoctiforme, paullulum compres- 

 sum, diametro fere duplo longius, 34-38:^30-34, leviter sinuato- 

 constrictum, 19 a. crassum; semicellulis late rotundatis, lateribus 

 subangulari-porrectis, dorso late rotundatis vel subtruncatis, inte- 

 gerrimis vel leniter crenulatis; pyrenoidibus singulis, membrana 

 sublevi. 



Hab. in stagnis ad ((Falaise» Gallite (De Brebisson). — Cel- 

 lulse e vertice visae late ellipticae. 



20. Disphinctium grande Delp. Specim. Desmid. subalp. pag. 231, 2139 

 t. 21, f. 9. — Cellulis cylindraceis, 216 ^^ 100, duplo magis longis 

 quam latis, vix medio constrictis, cum juncturae margin ibus omnino 

 coalitis; chlorophoris. ..? ; meinbrana subtilissime punctata. 



Ilab. in lacu candiano ItaliEe borealis (J, B. Delponte). — 

 « An Pleurotceniopsis ? » 



21. Disphinctlum subrotuntlum Delp. Specim. Desm. subalp. p. 231, 2140 

 t. 21, f. 7-8. — Cellulis ovato-subrotundis, 115=; 93,5 quarta par- 



te magis longis quam latis, vix medio constrictis, apicibus rotun- 

 datis, juncturae marginibus coalitis; membrana verrucis in series 

 circulares dispositis ornata. 



