158 Confervoidece, Ulotrichiacea3, Hormidium. 



Gerinauia et Bohemia passim. Etiam aJ cc Dunedin » Novio Zelan- 

 di:e (S. Berggken sec. Nordstedt). — Var. veiutinum (Ivuetz.) 

 Hausg. in Flora 1888, p. 264, Hovmidium veluiinum Kuetz. Phyc. 

 gener. p. 244, Uloihrix veluiina Kuetz. Species p. 350: luteo-vi- 

 ride, crispum; filamentis 12-24 y.. latis, subgeminatis. In terra nuda 

 prope Tergoste (Kuetzing). 



3. Hormitlium crenulatum Kuetz. Pliyc. germ. p. 193 [1815], Hansg. "77 

 in Flora 1888, p. 264, Vloihrix crenulata Kuetz. Species p. 350. 

 [1849], Tab. Phjx. II, t. 97, Rabonh. Fl. Eur. Algar. III, p. 308, 

 Hausg. Prodr. p. 63, Gay Sur les Ul. aoriens p. 72, excl. f. Schi- 

 zogonii \)q~V^\\^. Note sur rUlothrix crenulata 1887, p. 1, Wittr. 



et Nordst. Alg. aq. dulc.exs. n. 637, West. et Wall. Herb. n. 1344, 

 (var. coriicolu7n). — Strato pallide vel (siccando) sordide viridi, 

 tenui, raembranaceo, scepius submucoso; filamentis rigidis, coatortis, 

 imtricatis, simplicibus, passim per cellularum singularum vel pau- 

 carum divisionem secuudum axim duplicatis; cellulis 13-18 [x. cras- 

 sis, diametro ajqualibus vel duplo brevioribus; membrana inter cel- 

 lulas singulas binasve crassiore, hyalina, siiepe lamellosa, crenulato- 

 constricta. 



Ilab. ad truncos arborum, aJ rupes umbrosas in calidariis Ger- 

 maniae (Kuetzing), Belgii (Do-Wildeman), Bohemiae (Hansgirg), 

 Gallia) (Gay), Suecia) (Lagerheim) passim. — Var. corticolum (Ra- 

 benh. et West.) Hansg. in Flora 1888, p. 265, Vloihrix crenulaia 

 var. coriicola Rab. et West. I. c. Wittr. et Nordst. Alg. n. 637: 

 cellulis plerumque 12-15 a. crassis, diametro duplo brevioribus vel 

 .subcequalibus; membrana ad 3 a. crassa. In cortice P i n i Saxonias 

 (Auerswald, L. Rabenhorst) pr. u Hausen j) Suevioe (Kemmler) ad 

 Lovanium et (( Beverloo» aliisque locis Belgii (Leburton, Westen- 

 DORi', De-Wildeman) pr. (( Reichenberg )) Bohemi» (Siegmund); ad 

 truncos ai'borum ad (( Dunedin » Novas Zelandia^ (Berggren sec. 

 Nordstedt). — Cl. De-Wildeman huic speciei ut cystas tribuit 

 cellulas PleurocoGci crenulaii Hansg. qu?e in consortio Hormidii 

 crenulaii vigent. Comparanda vero est sententia quam in suo 

 opere Sur les Ulothrix a(3riens p. 73, scripsit cl. F. Gay. 



, Species dubiu. 



4. Hormidium? oedogonioides Grun. in Rabenh. FI. Eur. Algar. III, 37s 

 p. 370, (sub Uloirice). — Strato tenui, sordide viridi, crustaceo; 

 cellulis 7,5-9 y.. crassis, diametro jx^qualibus vel paullo longioribus 

 vel paullo brcvioribus, ondochromatc viridi (chlorophoro?) quadrato 



