808 Conjugatae, Desmidiaceffi, Splrotfpuia. 



3. Spirotaenia bryophila (Br6b.) Rabenh. Fl. Eur. Algar. III, p. 146, i92. 

 Cooke Brit. Desra. p. 52, WoUe Desm. U. S. p. 33, t. 3, f. 20, 

 Endospira hryophila Br6b. in Desmaz. Cr. de Fr. ed. II, n. 1654, 

 1850, Pahnogloea endospira Kuetz. Tabul. phjcol. I, p. 19, t. 

 XXIV, f. C, Spec. Alg. p. 229, Spiroiconia muscicola De-Bary 

 Conjug. p. 75, t. VII, F. — Minima, bryophila, in gelatina ma- 

 tricali nidulans; cellulis ad 8 p.. latis, oblongo-cylindricis, rectis vel 

 subcurvatis, bis vel ter longioribus quam iatis utroque polo ro- 

 tundatis; chlorophoro singulo, anfractu 1-1 '/o. 



Hab. in muco gelatinoso dilute viridi in muscis, lichenibus, 

 per Europam passim: in Gallia, Suecia, pluribus locis Germania?, 

 in Tyrolia, Hehetia, America boreali. 



4. Splrotaenla truncata Archer in Micr. Journ. 1862, p. 253, t. XII, 1925 

 f. 28-31 et 1867, July, t. VIII, f. 12 [Zygotum], Rabenh. Fl. 

 Eur. Algar. III, p. 147, Wille Nov. Seml. p. 58, Jacobs. Apergu 



p. 181, Cooke Brit. Desm. p. 41, t. 19, f. 4, Lagerh. Bidrag till 

 Sveriges Algflora, p. 52. — Cellulis minutis, 50 ^; 7, cjlindricis, 

 diam. sexies vel octies longioribus, polos versus leniter attenuatis 

 apicibus obtuso-truncatis ; chlorophoro unico, arcte spiraliter torto, 

 apices non attingente, ssepe 1-3 granula obvolveute. 



Ilab. ia paludibus parvis ad^Dublinum in Ilibernia (Archer), 

 in Dania (Jacobsen), Suecia (Lagerheim) et Nova Semlia (Wille). 



5. Splrotaenla tenerrima Archer in Micr. Jour. 1870, p. 203, Cooke 1995 

 Brit. Desm. p. 52. — Summopere gracilis; cellulis subinde incur- 



vis arcuatisve, leniter attenuatis, apice truncatis, magnitudine fere 

 Rliaphidii falcati; chlorophoro spirali singulo, totani' cavitatem 

 percurrente. 



Ilah. in stagnis Hibernia} (Archer). 



6. SpirotaBnla Nordstedtiana De-Toni. — Cellulis maximis, 315-340 1027 

 s 20-32, rectis, cylindraceis, diametro 12-14-ies longioribus, utro- 

 qne polo constrictulis rotundatisque; chlorophoris singulis, mar- 

 gine passim denticulatis, 7-10 a. latis, pyrenoides subglobosos, nu- 

 merosos obvolventibus; anfractibus laxis, 6-7; membrana pro ra- 

 tione tenui, levissima. 



Ilah. m aquario parvo Horti botanici patavini in Italia boreali, 

 sociis aliis Dcsmidiaceis et Spirogj/rd seliformi rarissime (Ipse 

 legi ineunte mense novemb. 1885). 



B. Celhila3 utroqne polo acuta?. 



7. Spirotdenia parvula Archer in Micr. Journ. 1862, p. 254, t. XII, 1928 



