340 Pnycomycetese, Poronosporese, Cystopas. 



Hah. in radice tuberosa Batatse edulis cui vaide noxia iu 

 America boreali. — E descriptione et icon. loco citato diagnosis 

 certa erui nequit. — Genus homonymon Acrocysth quoque inter 

 FlorideaS' adest. 



XENOMYCES Cos. Boni. p. 26, t. TI. — Capitula (sporangia?) aggre- 

 gata, sessilia, granuliforraia, dura. Flocci pallidi, intertexti, rigidi, 

 curti, subsigmoidoi, compressi, irregulariter ramosi, ramis abbre- 

 viatis, recurvis, plus minus obtusis. Cystides (sporae?) ampulla(?eae 

 stipitata^, — Genus afftne dicitur Sclcrocijsiidi (Berk. Br.) uec 

 minus enigmaticum. 



1. Xenomyces ochraceus Oes. loc. cit. — Capitulis ex ochraceo fu- 1426 

 ligineis, 1 mm. diam. 



Hab. ad Sarawak Bornei. 



FRANKIA Bruacli. in Unters. bot. Inst. Tab. 1886 (Etym. ab eximio 

 bot A. B. Frank). — Myceliura unicellulare, intra gallarura cellu- 

 las evolutura, simplex aut valde raraosum. Sporangia ex apice fila- 

 mentorum absque dissepimento orientia. Sporae ob protoplasraatis 

 divisionem efformatce, gerrainando rayceliura rursus gigneiites. 



1. Frankia Brunchorstii Moller in Bot. Gentralbl. 1891, pag, 61. — 1427 

 Mycelio bene evoluto; sporangiis clavatis, falcato-incurvatis. 



Hab. in celhilis gallarum radicaliura My ricae Gales in Nor- 

 vegia. 



2. Frankia subtilis Brunch. 1. c. Leunis-Frank Synops. III, p. 610 cura i^^^s 

 icon., Moller in Bot. Centralbl. 1891, p. 60. — Mycelii filamentis 

 tenuissimis, hyalinis; sporangiis globosis, 6-8 ^. diam. ; sporis nu- 

 raerosis, prirao angulosis, dein rotundis. 



Hab. in celiulis gallarum radicaliura Alni et Elajagnacea- 

 rum in Norvegia. — Cfr, Plasmodiophora A/n^ (Wor.) Moll. — 

 Syll. VII, 1, p. 464. 



Pam. 2. I*erono$porc(e de Bary. 



CYSTOPUS Lc^v. — Syll. VII, 1, p. 2:33. 



1. Cystopus Convolvulacearum Speg. Fung. Guar. I, p. 65. — Macu- 1429 

 lis amphigenis, parvulis, vix deterrainatis, fuscescentibus ; acer- 

 vulis amphigenis sa3pius confluentibus, ambitu macularum insiden- 

 tibus ac eas anuiatira cingentibus, albo-pallescentibus vel subfla- 

 vescentibus, primo epidermido toctis, dein erumpeuti-liberis, cora- 



