Conjugatse, DesmidiacerB, Genicularia. 803 



6-8,5. longitudine quatn maxiine variis, plerumque 8-30-plo diame- 

 tro longioribus, in fllamenta longa conjunctis, basi tumiila, apice 

 rotundato vel truncato-rotundato; spinis (an vere setis?) brevissi- 

 mis, longitudinaliter 6-seriatis. 



llab. in aquis substagnantibus « Minnesota » Americoc Borealis 

 (TuRNER, Wolle). 



6. Gonatozygon pilosum Wolle Desm. U. S. p. 22, t. I, f. 2. — Cel- 1913 

 lulis 12-20-plo diametro longioribus, laxe conjunctis, cylindraceis, 

 11-12 u.. latis; membrana plus minus dense spinulis piliformibus, 

 roctis, minutis obsita. 



Hab. in stagnis New-Jersey Americse borealis. 



7. Gonatozygon? leve Hilse in Kirchn. Alg. Schles. p. 131. — Cel- i^U 

 lulis longe cylindraceis, 5-5,5 [-'.. latis, plerumque singulis, 10-16-pIo 

 diara. longioribus, apices subtruncatos versus sensim attenuatis ; 

 membrana glabra. 



Hab. in fossis ad « Schebitz n prope Vratislaviam Silesiae. 



GENICULARIA De-Bary [1858] Unters. Conjug. p. 780 (Ktym. a geni- 

 citlo), Rabenh. FI. Eur. Algar. III, p. 146, Cooke Brit. Desm. 

 p. 184 nec Roussel [1806]. — Celluhie elongato-cylindrica;, nec con- 

 strictae i^ec incisa), apicibus truncat:^3, in fllamenta praelonga, cylin- 

 drica conjunctse; chlorophora pluria (3), parietalia.sinistrorsum spi- 

 ralia, nonnunquam confluentia vel irregularia; zygota inter cellulas 

 evacuatas conjugatas orta, orbicularia, levia. 



Obs. Geuus insigne Spiroffi/ram quasi referens, transitum in 

 Zi/gnemaceas efficiens. 



1. Genicularia spirotaenla De-Bary Conjug. p. 77, t. IV, f. 1-22, Ar- 1915 

 cher in Pritch. Inf. p. 721, t. III, f. 3. Rabenh. Fl. Eur. Algar. IIl, 



p. 156, Cooke Brit. Desm. p. 184, t. 66, f. 6. Gonalozygon spi- 

 rolcemum De-Rary in Hedwigia I, p. 106. — Cellulis cylindricis, 

 10-20-pIo longioribus, 200-400 5; 20 utroque fine paululum dilata- 

 tis; membrana verruculoso-aspera; zygotis orbicularibus, lovibus. 

 Hab. in palude turfosa prope Francofurtum ad Moenum Ger- 

 mani;e; in Cornovalia Britannige (Archer). 



2. Genicularia americana Turner Journ. Royal Micr. Society Decemb. i?i6 

 1885, ser. II, vol. V, p. 933. pl. XVI, f. 1, a, b, c, et in Notarisia 

 1886 p. 30. — Cellulis vel articulis haud minus elongatis, granulis 

 niinutis spiraliter seriatis instructis, 3 y^,-6-pIo diamGtro longioribus; 

 endochroma radiato, spirali ; nucleis amylaceis binis vel pluribus; 

 zygotis ignotis. 



