402 Siphoneae, Vaucheriaceac, Vaucheria. 



ij^ Oogonia deorsum versus directa. 



12. Vaucheria uncinata Kuetz. Tab. Phyc. VI, p. 21, t. 60, f. 1, 1033 

 Raben"i. Krypt. Klor. v. Sachs. I, p. 325, Alg. n. 971), Desraaz. 



Cr. de Fr. ed. nov. n. 607, Walz 1. c. p. 149, Plansg. Prodr. p. 96, 

 n. 13o, Nordst. Algol. Smasaker II, in Rotan. Notiser 1879, p. 188, 

 Vaucheria craciaia Lloyd Alg. de Touest de la Fr. n. 129. — 

 Csespitibus densis, sordide viridibiis, deraum expallescentibus; thallo 

 capillari, sparse ramoso ; oogoniis ovali-oblongis vel globosis, 95- 

 106 y.. diam. singulis vel geminis (rarius 3-1), brevirostris, ra- 

 mulo sub antheridio hamato-incurvo insidentibus ; oosporis globo- 

 sis, fusco-maculatis, sporodermate achroo, e stratis tribus compo- 

 sito arcte involucratis. 



Tlab. in stagnis lirapidis ad Dresdam (Hantzsch), (c Oschatz » 

 (L. Rabenhorst), prope Friburgum Brisgoviense (A. Braun, De- 

 Bary), ((Teplitz)) Bohemia3 (Karl), ad (c Milchdorf» in Austria 

 super, (A. Grunow), in Gallia ad ((Thouare)) (Lloyd). 



3. Anomal.*; Hansg. : Antheridia recta apice tecto, tubulis pluribus, raro 

 singulo instructa, apicalia, subhyalina. 



13. Vaucherja De-Baryana Woron. in Botauische Zeitung 1880, p. 425, 1034 

 t. 7, Hansg. Prodr. pag. 234, n. 487, — Pulvinata vel CcBspitosa, 

 2-6 cm. et ultra elongata, pallide vel griseo-virens; filanientis 24- 



40 ;/., raro ultra latis, sparse (raro abuudanter) irregulariter ra- 

 mosis, tenui-tunicatis, carbonato calcareo srepe valde incrustatis, 

 involucro^calcareo subinde tubiformi-continuo, griseo vel albe- 

 scente; ramis fructiferis 200-300 y.. longis, erectisj farctis; anthe- 

 ridiis in his ramis acrogenis, subhyalinis, sine cellula suffultoria 

 propria directe in filaraento insidentibus, 2- raro 3-4-angulatis 

 ad angulos maturitate poro instructis (poris 2, raro 3-4); oogoniis 

 lateraliter sub antheridiis sitis, raraellis lateralibus propriis bre- 

 vibus fultis, piernraquo singulis, raro 2-3-natis suberectis, fere 

 globosis, plasraate obscure viridi, granuloso, guttulas oleosas nu- 

 merosas fovente fcEtis, apice papilla parva, hyalina, verruciformi 

 prseditis ; oosporis maturis globosis, raro umbilicatis, oogonia sub- 

 iraplentibus. 



Hab. in rivulis, aciureductibus ctc. in aquis calcareis moutanis 

 pr, lacura ((Genfer» (Woronin), ad (c Halle-sur-Saale )> (De-Bary, 

 Peyritsch), prope (( Kuchelbad )) circa Pragara et pr (( S. Prokop» 

 circa (( Nova Ves )) BolieLniae (Hansgirg). 



