Phycomycetse, Chytridiacese, Physoderma. 513 



lum, sursum acutatum, intus granulosum; zoosporis uniseriatis 

 minutis. 



Hab. in Hyalotheca dissilienti in Finlandia, Suecia et 

 in Amer. boreali etin Sphperomate vertebrato, Cosmo- 

 cladio spec, Dicty osphoerio spec. in Finlandia. 

 3. Harpochytrium intermedium Atkinson in Ann. Mycol. 1903, p. 500, 1741 

 t. X, fig. 22-23 et in Journ. of Mycol. 1904, vol. X, pag. 3. — 

 Totum 40-70 « 3-4, anguste fusoideum, rectum v. curvulum, ses- 

 sile; zoosporis uniseriatis, minutis. 



Hab. in Conferva utriculosa, Cambridge, Massach. in 

 Amer. bor. (Dr. Thaxter). 



SYNCHYTRIUM De Bary — Syll. VII p. 288, IX p. 357, XI p 247, 

 XIV p. 441, XVI p. 390. 



1. Synchytrium (Leucochytrium) montanum Zopf in Zahlbruckn. 1742 

 Sched. ad Crypt. exsicc. Cent. IX, p. 358, n. 840. — Maculas 

 atro-violaceas usque violaceo-brunneas leviter elevatas formans; 

 sporis perdurantibus singulis v. bi-quaternis in quaque cellula epi- 

 dermica, ovoideis v. piriformibus, usque 176 « 154; contentu omnino 

 hyalino, oleoso; membrana crassa, solida, hyalina, exosporio crasso, 

 levi, endosporio quoque crasso, hyalino. 



Hab. in foliis, calycibus, rarius caulibus Brunelhie vulgaris 

 iu Tirolue pluribus locis montanis, in Salzburg et Schwarzwald 

 montibus. — In Brunella grandiflora numquam lecta species. 



CHYTRIDIUM A. Braun — Syll. VII p. 304, IX p. 358, XI p 250, 

 XIV p. 446. 



1. Chytridium gibbosum Scherffel in Hedw. 1902, p. (105). — Zoo- 1743 

 sporangiis epiphyticis, utriculiformibus, gibbosis, perpendicularibus 

 vel obliquis vel decumbentibus, operculo convexulo, 4 ^. diam., 

 dehiscentibus ; vesicula subsporangiali , endophytica, plerumque 

 globosa, ex qua rhizoides oriuntur; zoosporis uniciliatis, oscillanti- 

 bus, typice chytridiaceis ; sporis perdurantibus ignotis. 



Hab. in Cladophora, in horto botanico Budapest Hungarite. 



PHYSODERMA Wallr. - Syll. VII p. 317, IX p. 363, XI p. 250, 

 XIV p. 447. 



1. Physoderma Crepidis liostr. Islands Svampe in Bot. Tidsskrif, 1744 

 Copcnhagen 1903, vol. 25, pag. 286. — Maculis pustuliformibus, 

 rotunclatis, granulatis, 0,5-1 mm. diam. ; sporis irregulariter glo- 



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