792 Conjugata3, DesrniiJiaceae, Sphserozosma. 



vibus, fragilibus, niinus firmis, tubn mucoso subcrasso; cellulis 

 ellipticis, diametro '/3 longioribus, profundo constrictis, lobis incur- 

 vis, reniformibus; isthinis simplicibus, latiusculis; ceterum ut in 

 /S. vertcbralo. 



Ilab. in stagnis prope aCarslbad)) in Bohemia (Corda). 



Seclio 2. Spondylosium Rabenli., Hansg. Prodr. pag. 170: coUulse parietibus 

 lateralibus insimul angusie conjunctao, isthrais nullis, tubo mucoso haud 

 invohita^. 



7. Sphaerozosma secedens De-Bary Conj. p. 67, t. IV, f. 35-37, Rabenh. 1884 

 Fl. Alg. Em\ p. 150, Archer in Micr, .Journ. 1871, p. 02, Cooke 

 Brit. Desm. p. 5, t. II, f. 3, Flansg. Prodr. p. 170, n. 297, Spon- 

 di/losnim secedens Archer in Pritch. Inf. p. 724. — Priori simil- 

 limum, tubo mucoso et isthmis destitutuni; cellulis aut singulis 



aut paucis in fascias breves, fragilissiraas conjunctis, circiter 8 a. 

 latis, tam longis quam latis, profunde et late excisis, utroque fine 

 paululum concavis ; lobis transverse oblongis, levibus. 



Hab. in fossis, stagnis turfosis prope Francofurtura ad Moenum 

 (De Bary) in Saxonia passim, in Tyrolia (De Hausmann teste 

 Orunow), in Hibernia (Archer), in Italia (De-Toni, Levi), in Bo- 

 hemia (Hansgirg), iii Rossia (Artari), — Ex Cooke cellula? 12 s 

 10 p.. 



8. Sphaerozosma depressum (Breb.) Rabenh. Fl. Eur. Algar. III, p. 151, 1885 

 Ilansgirg Prodr. p. 170, n. 208, Spondylosium depressum Breb. 



in Kuetz. Spec. Alg. p. 180, Liste p. 120, Archer in Pritch. Inf. 

 p. 721, t. III, f. 0. — Fasciis brevibus, nudis; cellulis subquadran- 

 gularibus, 8-0 :; 10-12 ideoque diametro paulo brevioribus, media 

 obtuse excisis, angulis rotundatis, tubercuiis tribus marginalibus. 



I/ab. prope «Falaise» in Gallia (De Brebisson) et in Bohemia 

 (Hansgirg). 



9. Sphaerozosma pulchellum (Archer) Rabenh. Fl. Eur. Algar. III, 188G 

 p. L53, Cooke Brit. Desm. p. 0, t. II, f. 4, Sph. secedens var, 

 pulchellum (Archer) Hansg. Prodr. pag. 170, Spondylosium pul- 

 chellum Archer in Pritcli, Inf, p. 724, t, III, f. 10, Rabenh, Alg. 

 Sachs. sub n. 474, Kirciiner Alg. Schles. p. 134, — Fasciis brevi- 

 bus, fragilibus, nudis; cellulis 10-13 ::; 9-11 fere tam longis quam 

 lalis, acute excisis, utroque fine truncatis, cellulis singulis Cosma- 



rio Mcneglunii quodammodo similibus sed minoribus, lobis basi 

 subito inflatis, inter se remotis, lobo terminali magis producto, en- 



