Myxophycese, Oscillatoriese, Oscillatoria. 159 



Hiingariae in montibus Pieninen dictis (Filarzsky), Angliae (West), 

 SuecisB ad Upsaliam (Lagerheim), Americse borealis (Collins). — 

 Var. dilutior Kuetz. Sp. Alg. p. 246: trichomatibus dilute serugineis, 

 granulis ad genicula articulorum minus distinctis. Inter algas ex 

 aquis calidis Euganeorum (Meneghini). 

 17. Oscillatoria anguina (Bory) Gom. Monogr. p. 214, t. VI, f. 16, 383 

 De Toni Fl. Alg. Ven. IV, p. 663, Gardn. in Coll., Hold. et Setch. 

 Phyc. Bor. Amer. n. 1052! non Kuetz., Lysigonium tcenioides 

 Stiebel in Mus. Senkenb. III (1839), p. 79, Fresen, ibid. (1845), 

 t. XVII, f. 9-12 ?, Oscillaria anguina Bory Dict. class. XII, p. 467, 

 1827, Gomont Ess. in Journ. de Bot. IV, p. 356, Rab. FI. Eur. 

 Alg. II, p. 108 excl. syn. nec Kuetz., Lyngbya anguina Hansg. 

 Prodr. Alg. v. Bohm, II, p. 116. — Strato nigro-aerugineo, siccitate 

 atro-chalybeo ; trichomatibus siccis, fragilibus, haud torulosis, cel- 

 lulis inflato-torulosis et refringentibus frequenter interruptis, 6-8 [i. 

 crassis, inferne rectis, superne terebriformibus sublonge attenuatis, 

 apice capitato-obtusis; articulis diametro trichomatis 3-6-pIo bre- 

 vioribus, 1,5-2,5 [x. longis; dissepiraentis interdum granulatis; mem- 

 brana celluhe apicalis superne leviter incrassata. 



Hal). canales molendarios prope Chantilly et aquas thermales 

 ad Borcette Gallia? (Bory, Gomont) ; in Bohemia, Austria (Hans- 

 girg), Virtembergia (Kirchner), Galicia, Polonia (Gutwinski), 

 Bosnia (Gutwinski, Karlinski), Veneta regione (Zanardini, De 

 ToNi), Aquis Albulis pr. Romam (Martel), Anglia (West), «Minne- 

 sota » Amer. bor. (Tilden), Jamaica (Collins). — Dubium hgeret an 

 huc spectet Oscillaria subsalsa Ag. b. dulcis Kuetz. sp. p. 246, Rab. 

 FI. Eur. Alg. II, p. 109: strato olivascenti, trichomatibus ad 9-11 [a. 

 crassis. In acqua dulci Germanise (Kuetzing, Rabenhorst), Bohemiae 

 (Hansgirg) et Galiciae (Gutwinski). 



^ectio III. Marqaritifer^ Gom. Monogr. p. 215. — Trichomata constanter 

 torulosa, apice obtusa in parte apicali vix attenuata, longissime arcuata, 

 rarius recta aut omnino spiralia. Plantge halophilae, diametro modicse vel 

 crassse. 



18. Osciilatoria Bonnemaisonii (Crouan) Gom. Monogr. p. 215, t. VI, 384 

 f. 17-18, Oscillaria Bonnemaisonii Crouan in Desm. PI. crypt. 

 de France n. 537, 1858 (fide Gomont), FI. Finist. p. 113, Liste 

 p. 371, Oscillaria intermedia Crouan Liste loc. cit., Fl. Finist. 

 p. 113, Osc. coluhrina Thur. in Le Jol. Liste p. 26, t. I, f. 2, 



