Phycomycetse, Chytridiacege, Urophlyctis. 515 



UROPHLYCTIS Schroet. — Syll. VII, p. 303. 



1. Urophlyctis Alfalfae (Lagerli.) P. Magnus in Bericht. Deutsch. Bot. i 7 ^ 8 

 G-esell. 1902, p. 291, tab.XV (absque diagnosi!) Cladochytrium Al- 

 falfcu Lag. in Bull. Herb. Boiss. vol. III (nomen). — Prsecipue 

 structura et forma gallce, quam generat, a speciebus affinibus 

 diversa. 



Hab. in radicibus Medicaginis sativue in iEquatoria Ar- 

 gentinia et pr. Colrnar i. Els. 



2. Urophlyctis Riibsaameni P. Magn. Ber. D. B. Gr. Gener. Heft 1749 

 1901, p. 150, tab. XXVII (sine diagnosi). — Hypog;ea, in radi- 

 cibus Rumicis excrescentias globuloso-tuberoideas usque 2-3 cm. 

 long. generans; sporis perdurantibus excrescentias implentibus et 

 lacunas varias gignentibus, hemisphaericis, levibus, brunneis, infra 

 concaviusculis, 40-45 \l. diam.; mycelio filiformi vage ramoso, cel- 

 lulas mares generante et inter sporas perdurantes intersperso. 



Hab. in radicibus Bumicis scutati pr. St. Goar, Coblenz, 

 Germania (Ew. H. Rubsaamen). 



3. Urophlyctis Trifolii (Pass.) Magnus in Centralbl. f. Bakt. 1902, 1750 

 IX, p. 896, Synchytrium Trifolii Pass. in Babenh. F. Eur. n. 2419 

 (1877), Olpidium Trifolii (Pass.) Schrot. — Syll. VII, pag 311, 

 Urophlyctis bohemica Bubak, Centralbl. Bakt. 1902, pag. 817. 

 Pustulis vitreis semiglobosis, in petiolis usque 1 mm., in lamina 

 foliorum usque 0,5 mm. latis; sporangiis perdurantibus stepe ultra 

 200 in una pustula, parce parenchymatico-cellulosis, cellulis mem- 

 brana demum clathrato-perforata, bilateralibus, apice altero semi- 

 globosis, altero alte impressis; membrana sporarum levi, duplici, 

 fusca exosporio tenui, endosporio crasso; sporis 40-50 jji. diam. 



Hab. in foliis Trifolii montani (forma sporangiis perdur.) 

 in pratis Vsetaty Bokemioe, nec non in foliis T r i f. p r a t e ns i s 

 etrepentis in Italia et G-ermania. 



4. Urophlyctis hemisphaerica (Speg.) Syd. Ann. myc. 1903, pag. 517. 

 Ita nominanda sunt : Uromyces hemisphcericus Speg. (1881), dein Pro- 

 tomyces vagabundus Speg. (1891), tandem Entyloma hemisphcuricum 

 Speg. (192), CEdomyces hemisphcericus Speg. Not. synonym. p. 9 

 (1903), Physoderma leproides (Trab. et Sacc.) Lagerh. (1898). Cfr. 

 Syll. XIV, p. 448, quse species vero forte distinguenda est sub 

 nomine Urophlyctis leproides (Trab.) Magn. in Ann. of Bot. 1897, 

 p. 92, ubi et aliaj generis species optime illustrantur. Teste cl. Ma- 

 gnus, genus Urophlyctis a Physodermate est bene distinctum. 



