Bacillariese, Naviculacese, Schizonema. 283 



V. H. Syn. t. 15, f. 29: Schizonemati floccoso Kuetz. simile sed vi- 

 ride, delicatius.frustulis multo minoribus. Ad lapides in portu u Cher- 

 bourg » Gallise (Lenormand). 



4. Schizonema nebulosum Menegh. in Kuetz. Species Algarum p. 99, ii75 

 Grun. in B. C. 1880, p. 1509, V. H. Syn. t. 15, f. 11. — Tu- 

 bulis diffluentibus, muco copioso obvolutis, indistinctis, hyalinis, ad 

 chartam, in qua siccatur, maculam dilute flavidam efficientibus. 



Hab. ad oras Dalmatiae (Menbghini). 



5. Schizonema parvum Menegh. in Kuetz. Spec. p. 100, Rabenh. Fl. H76 

 Eur. Algar. I, p. 277, Grun. in B. C. 1880, p. 1509, V. H. Syn. 



t. 15, f. 30, Micromega parvum Pritch. Inf. p. 933. — Pseudo- 

 thallo olivaceo-virescente, mucoso; tubulis hyalinis (diametr. 22 a. 

 et ultra), simplicibus (?), maxime implicatis et curvatis; frustulis 

 laxiusculis, distincte seriatis, seriebus obliquis vel rectis (valvis 

 lanceolatis 22-24 s 5-5,5), e facie connectivali visis rectangulis, 

 oblongis, linearibus. 



Hab. in mari adriatico ad Venetias (Meneghini) ; in oceano 

 atlantico ad « Caj'enne » Gujanae (Leprieur). 



6. Schizonema minutum Kuetz. Bacill. p. 111, t. 23, f. V, 1-5, Species 1177 

 p. 98, Rabenh. Fl. Eur. Algar. I, p. 276, Grun. in B. C. 1880, 



p. 1509, V. H. Syn. t. 15, f. 41. — Epiphyticum, brevissimum, 

 tenue, 800 ad a. 1 mm., 2 alt. decumbens, subramosum, ramis in 

 apicem attenuatis acutis, series paucas (2-3) frustulorum lanceola- 

 to-acutorum 25 u. long. (e facie connectivali linearium) foven- 

 tibus. 



Hab. ad Algas in mari adriatico. — Verisimiliter, praseunte 

 ipso Grunow, cujusdam Schizonematis status juvenilis. 



7. Schizonema Bryopsis Kuetz. Bac. p. 114, t. 26, f. VIII, Species i"8 

 p. 103, Rabenh. Fl. Eur. Algar. I, p. 277, Grun. in B. C. 1880, 



p. 1509, V. H. Syn. t. 15, f. 26, Micromega Bryopsis Pritch. Inf. 

 p. 931. — Pseudothallo viridi, setaceo, 2,5 cm. alto, rigido, ramis 

 sparsis, superioribus patentibus, obtusis; frustulis majoribus, 40 ~ 12, 

 oblongis, apicibus rotundatis, e facie connectivali visis apice truncatis. 

 Hab. ad ins. Helgolandiam (Binder) ; ad «Aberdeen» Scotise 

 (Dickie); in portu uGenova» maris ligustici (Caldesi). 



8. Schizonema caspium Grun. Algen und Diatom. aus dem Kaspischen 1179 

 Meere p. 116, t. 4, f. 21, a-b, Bot. Centralbl. 1880, p. 1509. — 

 Minutissimum, tubulis brevissimis, subsimplicibus vel parce dicho- 

 tome ramosis, inferne irregulariter transverse rugosis, superne le- 

 vibus, hyalinif, apicem versus vix conspicuis, frustulis irregulariter 



