894 CoDJugatae, Desmitliaceae, Disphinctium. 



Hab. ad uCarlberg» (P. T. Cleve) et u Rackarebergen » prope 

 Holniiam Sueciae (Lundell), ad ((Abo)) in Fennia (Elfving), in 

 Belgio (De-Vildeman) Sibiria (Boldt), Scotia et Hibernia (Arciier, 

 Cooke), Spitzbergia (Nordstedt), Nova Semlia (Wille), Norvegia 

 (Nordstedt), Boliemia (Hansgirg), Italia et Tyrolia (Wittrock, 

 Nordstedt), Groenlandia (Nordstedt), nec non iu Fiorida Americae 

 borealis (J. D. Smith). Ex Wolle cellul^ 45-50:^17-18, ex Wille 

 24 ^ 12, ex Nordstedt 25-33 ^ 15-20. — Var. pusillum Hansg Prodr. 

 p. 278, n. 359, Disphinctium pusilhim Hansg. Prodr. p. 187, f. 109: 

 celiulis oblongo-hexagoniis; semicellulis 20-36 ^; 9-16, medio leni- 

 ter constrictis; membrana levi, hyalina. In Bohemia (Hansgirg). 



38. Disphinctium sinuosum (Lund.) Hansg. Prodr. p. 244, nota 1, Co- 2157 

 smarium siniiosum Lund. Desm. Suec. p. 47, Cosmarium qua- 

 dratum var. Ralfs Brit. Desm. tab. 15, f. 1 c, Didi/midium (Cosm.) 

 pticatum Reinsch Algenfl. ex parte t. IX, f. 1 d, Cosmarium 

 quadratiim Cleve Bidrag p. 487. — Submediocre, diametro duplo 

 longius, cellulis ambitu rectangularibus 38-45 = 18,5-22,5, 16-17 



a. crassis , non profunde constrictis, sinu lineari , angustissimo, 

 extrorsum non ampliato, isthmo 13-16,5 a. lato, a latere visis 

 elliptico-oblongis, medio non distincte constrictis; semicellulis qua- 

 draticis, tam longis, quam latis, lateribus leviter refcusis, angulis 

 inferioribus subrectis, prorainulis, superioribus subito rotundatis 

 subprominulis, apice retusis; a vortice visis subcircularibus, utro- 

 que fitie tumore parvo instructis; membrana glabra; pyrenoidibus 

 singulis. 



Hab. in (c Lassby backar » prope Upsaliam (S. Henschen) et 

 in colli inter Upsaliam et (( Vaksala » sito in Suecia (Lundell). — 

 Cum D. ancipiti (Lund.) Hansg. (cui maxime affine videtur) valde 

 congruit at semicellulis a fronte visis utroque latere et apice an- 

 gulis retusis angulisque superioribus (subito) rotundatis facile di- 

 gnoscitur. A D. qaadrato (Ralfs) Hansg. differt apicibus retusis 

 pyrenoidibusque singulis («?»). — Var. decedens (Reinsch) Nordst. 

 Desra. Arct. p. 38, t. 8, f. 41, in Nordst. et Wittr. Desm. Ital. 

 Tyrol. p. 31, Cosmarium plicatum? var. dccedens Reinsch in 

 Acta Senckenb. vol. VI (1867) p. 114, t. 22, C II 7, Cosmarium 

 pi/ramidatum De-Not. Element. t. III, f. 23: dimens. coll. 45-53 ^^ 

 20-30; crassit. a,; 18-22 latit. isthnii 15-20 a; latit. apic. 22-24 y.. 

 In Italia boreali (De-Notaris, Nordstedt), in regionibus Spitzber- 

 gensibus (Nordstedt), in Germania (Reinsch). 



39. Disphinctium? Ciepsydra (Delp.) De-Toni, Cosm. Clepsydra Delp. 2158 



