Phycomycette, Chytridiaceve, Khi-cidiomyces. 445 



3 u. diam., cilio longissimo donatis, imcleo oleoso farctis; sporis 

 perdurantibus ignotis. 



Hab. saprophytica in E-otiferis emortuis in Gallia. 



RHIZOPHLYCTIS Fischer, Pliycom. 1892, p. 119, Syll. XI, p. 249. 

 (Etym. rhiza radix et phlyctis buUa, pustula). — Sporangia et 

 sporae perdnrantes libera; sporangia globosa v. ellipsoidea, inermia, 

 indivisa, filis mycelicis pluribus instructa. 



1. Rhizophlyctis operculata De Wild. Ann. Soc. belg. Micr. 1895, 1682 

 p. 105, t. IV, f. 1-9. — Zoosporangiis plus minusve regulariter 

 ovoideis, basi in lilamenta radiciformia copiose ramosa productis, 

 .50-174 '^ 33-100, collo longitudine variabili, interdnni longissimo; 

 zoosporis numerosis, centro nucleo oleoso farctis, massam com- 

 pactam mucilaginosam formantibus, post exitum e zoosporangiis 

 quiescentibus ; sporis perdurantibus non visis. 



Hab. in contextu plantarum submersarum, ISTancy Gallise. 



LATROSTIUM Zopf, Beitr. Phys. u. Morpb. nied. Organ. IV, p. 43- 

 68 (Etym. latus et ostium). — Mycelium intramatricale, copiose 

 ramosum; sporangia extramatricalia, vertice compressa ideoque la- 

 tiora quam longa, ostiolo laterali prsedita ; zoosporae antice cilio 

 unico ornatae ; sporse perdurantes extramatricales, vertice compress^, 

 ut sporangia latiores quam longae, membrana crassa duplici inclusse. 

 Tthizophidio afiine. 



1. Latrostiufn comprimens Zopf, l. c. t. III, fig. 15-19. — Mycelio less 

 intra celluias algarum vivente, copiose ac tenuiter ramoso; spo- 

 rangiis tenue tunicatis, ellipsoideis v. ovoideis, 25-60 u. diara. 

 longiore; zoosporis minutissimis globosis, 2 '/,-3 u. diam., nucleis 

 magnis farctis, 50-200 in quoque sporangio; sporis perdurantibus 

 sublenticularibus, 25-50 p. diam. longiore, membrana hyalina jodi 

 ope ccerulescente duplici tectis, exosporio crasso radiato, endosporio 

 tenui, intus nucleis permagnis byalinis prseditis. 



Hah. in oosporis, quas comprimit, Vaucherise in Germania, 

 Belgio, Helvetia, 



RHIZIDIQMYCES Zopf — Syll. VII, p. 316. 



1. Rhizidiomyces SpirogyraB De Wild. Ann. Soc. beig. Micr. 1895, i684 

 p. 111, t. IV, f. 14-22. — Mycelio intra cellulas algarum evoluto; 

 zoosporangiis extra cellulas viventibus, globosis v. subovoideis, basi 

 vesicula matricem penetrante, fiiamenta mycelica ramosa gerente 



