m 



Cienkowski in botanisch. Zeit. 1855. p. 801. 



Ferd. Co/in in Nov. Act. XXIV. P. 1. p. 154. 



A. prolifera Nees ab Es. (Nov. Act. XI. P. 2. p. 514. Leptomitus 

 prolifer Ag. Syst. p. 49. N. 12. Yaucheria aquatica Lyngb. Hydroph. 

 T. 22. Saprolegnia capitulifera A. Braun in Ktz. Spec. p. 160. N. 8. 

 De By in bot. Zeit. 1852. p. 473. Pringsh. Jahrb. 1. p. 304.) 



Hab. in piscibus, insectis, vermibus sub aqua putrescentibus. 



A. cornuta Archer (in Micr. Journ. 1867. April, p. 126. T. VI. 

 F. 2 — 6.). 



3. Pytllilllll Pringsh. (1857): Thallus simplex vel ramosus, 

 sporangia nova non proferens. Zoogonidia oriuntur extra sporangium 

 e protoplasmate ad sporangii orificium effuso, globose formato, membranula 

 delicatissima postea evanescente involuto. Oogonium oosporam singulam 

 procreans. 



P. entophytum Pringsh. (Monatsb. der k. Akad. d. Wissensch. zu 

 Berlin 1857. p. 319.). P. cellulis vesiculosis entophytis, abbreviatis, 

 simplicibus (non ramosis ut videtur) , varie curvatis , postremo erum- 

 pentibus. 



Hab. intra Spirogyram quandam, prope Berolinum 1856 detexit 

 cl. autor. 



P. monospermum Pringsh. (1. c. p. 320.). P. caespitibus achrois, 

 e vesiculis elongatis, unicellularibus, ramosis formatis. 



Hab. in farinae vermibus emortuis, sub aqua putrescentibus ; primus 

 observavit Dr. N. Lieberkuhn. 



4. AclllyOgetOll Schenk (1859): Thallus entophytus, uni- 

 cellularis ; cellula initio singula, postea 5 — 6 vel plures concatenatae, 

 submoniliformes. Cellula quaeque processu parvo obtuso, deinde 

 elongato, plantae nutricis membranam pcrrumpente instructa. Zoo- 

 gonidia intra cellulam matricalem orta, et nucleo oleoso et locello 

 lateralibus praedita , cilium unicum praelongum gerentia , in processus 

 orificio capituliformi - aggregata , denique examinantia. 



Plantula unicellularis sensu strictissimo. 



A. entophytum Schenh (in bot. Zeit. 1859. p. 399. T. XIII. 

 F. A. 1 — 8.). A. cellulis plerumque 7 — 8, rarius pluribus, singulis, 

 globosis, vel 2 — 3 concatenatis. v. v. 



Diam. cell. 0,0016 — 0,0022" = '/55 — V22'" , longit. processus 

 0,0024 — 0,0048" = »/37 — Vio'"- 



Hab. intra Cladophorae cellulas vegetas ; prope Wiirceburgum primus 

 detexit cl. Schenk, per Germaniam passim observatum. 



