544 Bacillarieae, Nitzschiacese, Nitzschia. 



p. 98, V. H. Syn. p. 184, t. 68, f. 28-29, Typ. n. 410, Sijnedra 

 Frusiulum Kuetz. Bacill. p. 63, t. 30, l 71, Sp. p. 40!, Homreo- 

 cladia Bulnheimiana Rabenh. Alg. n. 1301, Fl. Eur. Algar. I, 

 p. 167. —Nitzschice amphibice Grun. similis sed brevior, valvis acute 

 lanceolatis, 20-40^4-5, punctis carinalibus 9-11 striisque trans- 

 versis 20-22 in 10 [>.. 



Uab. haud raro in salinis imprimis Thuringife (Bulnheim) ; fos- 

 silis in Hungaria (Pantocsek). — Teste Rabenhorst, membranulas 

 gelatinosas, dilaceratas efficit. — Var. minutula V. H. Syn. p. 184, 

 t. 69, f. 5: parva, angustissirae linearis, punctis carinalibus 12- 

 12^2 in 10 f^- striisque 30-31 in 10 a. Ad « Groenendal » Bel- 

 gii (Delogne). — Var. acuta Pant. Foss. Bacill. Ung. II, p. 72, 

 t. 6, f. 107, t. 15, f. 258: valvis lanceolatis acutis, 15-20^4-5; 

 punctis carinalibus ^V^-IO in 10 u.; striis transversis 18-20 in 

 10 pi. Fossilis in Hungaria. — Var. curvata Pant. I. c. t. 3, f. 50: 

 valvis curvatis, ad polos obtuso-rotundatis, 30 «4-5; punctis ca- 

 rinalibus 10 in 10 ^.; striis transversis 25 in 10 ij.. Fossilis in 

 Hungaria. ^ Var. constricta Pant. 1, c. t. 6, f. 103: valvis leni- 

 ter constrictis, 32-33 =* 4, punctis carinalibus 12^^ in 10 a. ; striis 

 transversis 25 in 10 ^. Fossilis in Hungaria. — Var. hungarica 

 Pant. I. c. t. 3, f. 48: valvis auguste lanceolatis, subacutis, 25 «4; 

 punctis carinalibus ]2^/^ in 10 [j..; striis transversis 271/2 in 10 ^. . 

 Fossilis in Hungaria. — Var. obtusa Pant. 1. c. t. 6, f. 100, t. 11, 

 f. 182: valvis obtusis, 16-25 ^* 4,5-5,5; punctis carinalibus 10-11 

 in 10 u..; striis transversis 19-20 in 10 a. Fossilis in Hungaria. — 

 Var. producta Pant. I. c. p. 73, t. 6, f. 101 : valvis elongatis, lan- 

 ceolatis, acutis, 30,5^6,5; punctis carinalibus 10 in 10 a.; striis 

 transversis 25 in 10 u. — Var. giacialis Grun. in V. H. Syn. 

 t. 69, f. 9. 



141. Nitzschia Liebethruthii Grun. et Rabenh. FI. Eur. Algar. I, 2135 

 p. 157, CI. et Gr. Arct. Diat. pag. 98, V. H. Syn. t. 68, f. 25-26, 

 Niizschia perpusilla Grun. in Wien. Verhandl. 1862!, t. XII, f. 17, 

 non Nitzschia perpusilla Rabenh. !! — Minutissima, linearis, api- 

 cem versus attenuata; valvis anguste lanceolatis, 11-27:^2-3, acu- 

 tiusculis, punctis carinalibus circiter 12 striisque transversis circi- 

 ter 24 in 10 u.. 



Hab. in mari jonico ad «Corfu» inter Lyngbyam majorem 

 (Liebethruth), in mari adriatico ad aMiramar» (Grunow); in 

 mari mediterraneo ad Massiliam etc. (Grunow). — Var. minuscula 

 Grun. in Cl. et Gr. Arct. Diat. p. 98: valvis minoribus, apicibus 



