Phycomycetse, Chytridiacese. Pleolpidium . 837 



18-36; tunica levi tenui, liyalina v. flaviduia, jodii ope distincta 

 V. nulla; tubulis 1-3, brevibus 4-6 «^4-5, perpendiculariter insertis; 

 zoosporis ellipsoideis v. piriformibus 2-3 \).. long., cilio valido 

 praeditis. 



Hab. in cellulis hypertrophicis, v. non, PylaielUe littora- 

 lis Julianehaab (Groenlandise), Frederikshavn Dania. 

 8. Pleotrachelus paradoxus Petersen, 1. c, p. 459, cum icone. — Zoo- 3207 

 sporangiis forma variabilibus, irregularibus, sphsBroideis v. oblon- 

 gis in sporangio hospite singulis v. pluribus; tunica hyalina, te- 

 nui, levi, jodii ope violacea; tubulis 1 v. pluribus, per poros spo- 

 rangii hospitis exeuntibus. 



Rab. in sporangiis hypertrophicis et tunica incrassatis Rhi- 

 zophidii discincti, Christianssund Norvegite. 



ECTR06ELLA Zopf — Syll. VII p. 315. 



1. Ectrogella perforans Petersen, Oefv. kgl. Dansk. Vid. Selsk. For- 3208 

 handl. n. 5 (1905) pag. 466, cum icone. — Zoosporangiis maturis 

 lenticulari-sphseroideis, solitariis v. 2-3 in matrice confertis, 20- 



25 ;j. diam., tunica tenui, levi, hyalina, jodii ope leniter violacea; 

 tubulis 1-4 unilateralibus, 4-7 a. long. ; zoosporis ellipsoideis, 1-2 

 [JL. long. cilio longo, anteriori prseditis; sporis immobilibus tuniea 

 parum incrassata prteditis et in sporangiis crassius tunicatis (zoo- 

 sporangiis conformibus) nidulantibus. 



Uah. in Licmophora Lyngbyei et in Synedra ulna 

 var. in Dania. — In Synedra zoosporangia longiora et augu- 

 stiora, tubuli usque ad 8 et longiores. 



PLEOLPIDIUM A. Fischer — Syll. XIV p. 35. 



1 Pleolpidium tuberculorum Vuill. in Bull. Soc. Sc. Nancy, X ^1909) 3209 



p. 30-50. Huc spectat Cladochytrium tuherculorum Vuill. — Syll. 



XIV, p. 449 — sed ex ipso auct. Cladochytrium hoc nil est nisi 



Pleolpidii species (nunc P. tuherculorum vocata) in zoocystibus 



Pythii parasitica. 



2. Pleolpidium cuculus Butl., Mem. Dep. Agric. India I (1907) p. 127, 3210 

 tab. VII, f. 22-2^). — Sporangiis jugiter terminalibus, sporangia 

 matricis imitantibus, globosis vel piriformibus, 20 m,. diam.; zoo- 

 sporis clavatis, latere crassiore longe 1-ciIiatis, ex papilla parietis 

 exeuntibus; sporis perdurantibus globosis, in apice inflato hyphre 

 matricis eflformatis, solitariis, tunica crassiuscula, flavido-brunnea 

 pneditis, 12-17 \>.. diam. 



