BIO PhycoraycetiP, ChytridiacefE, Synchytriumi. 



(>fformatis, tpstaceis; sporis perdurantibus, tantum adbuc notis, in 

 oellulis solirariis globosis, primo hyalinis 18-40 [j,. diam., serius 

 lateritiis et 40-70 ;j.. diam., dense minuteque verruculosis, guttula 

 maxima oleosa flava fretis. 



Hah. \r\ foliis vivis Echii plantaginei in pascuis circa La 

 Plata Arner. austr. 



7. Synchytrium Rytzii Syd , Ann. Mycol. V (1907) p. BlO. — Verrucis 3220 

 amphigenis vel petioHcoHs, minutis, solitariis, compositis; sporis 

 perdurantibus soHtariis in ceUula matricaU valde ampHficata, eam 

 non explentibus, globosis subinde late elHpsoideis, contentu aureo- 

 flavo. exosporio brunneo ca. 3 |j-. crasso, endosporio hyaHno, ca. 

 3-6 ij.. crasso. 58-93 ;j.. diam. 



Hah. in foHis petioHsque Anisomelis ovatse, Dehra Dun, 

 Indi.c or. 'E. .1. BurLER). — Affine S. Wurthii. 



8. Synchytrium Pscrosiae Speg,, Anal. Mus. Nac. Buenos Aires t. XIX 3221 

 (1909; p. 286. — MacuHs nullis v. effusis fumoso-subpurpurascen- 

 tibus indefinitis; verrucuHs hinc inde laxe gregariis, hemisphaerico- 

 prominuHs, 150-250 ;j.. diam., fusco-purpureis, rugulosi.s, per oeta- 

 tem perforatis vacuis; cystidiis globosis, 3-5-aggregatis in quaque 

 verrucula, membrana fusca anhista vestitis, 100-150 [j.. diam., 

 aliis macrosporis. ceteris microsporis; macrosporis 3-8 in quoque 

 cystidio, globosis, 35-40 ;j.. diam,, membrana hyaHna tenui levi. 

 vestitis, endoplasmate dense minuteque granuloso guttulato luteo 

 farctis; micros])oris 20-50 in quoque cystidio, e globoso obtuse 

 angulosis, 20-26 ;j.. diam., tunica tenui levi hyaHna, endoplasmate 

 dense granuloso, luteo repletis. 



Hab. in foliis vivis Picrosige longifoliae in pratis circa 

 La Plata Amer. austr. 



9. Synchytrium Achyroclines Speg., Anal. Mus. Nac. Buenos Aires 3222 

 t. XIX (1909) p. 285. — Maculis nullis -v. minutis obsoletissime 

 pallescentibus; verruculis superficiaiibus, pusillis, 150-200 ;j.. diam., 

 tomento absconditis, rugosis, flaccidulis; sporis in cellulis epider- 

 midis hypertrophicis, solitariis, subglobosis o^atis v. irregularibus, 

 40-70 ;j,. diam., episporio levi, tenui, hyalino, endoplasmate minute 

 granuloso fulvo; sporis pordurantibus non inventis. 



Hah. in foliis vivis Achyroclines saturejoidis in pratis 

 circa La Plata Amer. austr. 



10. Synchytrium Scirpi Davis, Journ. of Mycol. (1905) p. 154, cum 3223 

 iconib. — Marulis minutis, rufo-brunneis gallas (seu distorsiones) 

 parum elavatas, vix 50 ;j-. supra foliorum superficiem; sporis per- 



