Uredinales, PucciniacesB, Pncciniese, Puccinia. 765 



braua briiniiea, levi (rarissime striis singularibus, longitniliuali- 

 bus, vix conspicuis ornata) , ad poros vix crassiore et supra 

 papilla huniillina byalina donata ; porus celluhie superioris ple- 

 runique apicalis, inferioris ad pediceHum vel in parte inferiore cel- 

 lulae dispositus ; pedicelhis fragilis. 



Hah. in P o 1 y g o n o a 1 p i n o All. (Polygono polymorpbo Led.), 

 in Rossia europaea orientali (prov. Ufa, Perm), asiatica (prov. Jeni- 

 sejsk Transbaicaba) et in Caucaso (prov. Dagestan) et in P. L a x- 

 maui Le])ecb (!) in prov. Jakutsk. — A P. nltida Barkb uredo- 

 sporis tantum differre videtur, in qua specie pauhim minores et 

 poris ternis, rarius binis, optime conspicuis donatae sunt. 



272. Puccinia sibirica Tranzscb. in Tranzscb. et Serebrian., Mycotb. 2710 

 Ross. fasc. III-IV, an. 1911, n. 160. — Sori sparsi, bypopbylli ure- 

 dosporiferi cinnamomeo-brnnnei, teleutosporiferi atro-brunnei. Ure- 

 dosporae ovatae vel subglobosae, 22-25 * 17-21, raembrana flave- 

 scente vel subbyahna, ecbinubita, poris inconspicuis. Teleutosporae 

 plerumque late ellipsoideae vel subgiobosae, rarius elongatae, ad 

 septum vix coustrictae, utrinque rotundatae, 22-32^18-22 (ple- 

 rnmque 24*21); membrana brunnea, sublevi, plerumque striis sin- 

 gulis longitudinalibus e verruculis minimis compositis ornata, te- 

 nui, supra poros papiHa humili lentiformi hyalina donata ; porus 

 cellulae plerumque uon apicalis sed ad septum dispositus, cellulae 

 inferioris ad septum dispositus ; pedicellus fragilis. 



Bab. in foliis P o 1 y g o n i a 1 p i u i Alb, in Rossia asiatica 

 (prov. Tomsk, Jenisejsk, Irkutsk). 



273. Puccinia Imperatoriae-mamillata Cruchet,Mycol.Oentrlbl. III(1913) 2711 

 p. 213, fig. 1-2. — Pycnidiis epipbyllis vel petiolicolis, copiosis, 

 sensim sphaericis, 150 [i, circ. diam. Aecidiis {Aecidinm Imperatoriae 

 Cruch.) aggregatis, hypophyllis vel petiolicohs, raro epiphyllis, pe- 

 ridio capuliformi, margine lacerato parum expauso, e cellulis ad- 

 haerentibns, striatis, membrana extus 6-12 ^i crassa, levi, intus 



2-4 [JL, granulosa constitutis; aecidiosporis gioboso-polygoniis, flavo- 

 aurantiacis, 18-22 \i diam., membrana hyalina, tenuissima et mi- 

 nute verrucosa. Uredosoris sparsis, hypophyllis, rotundatis, flavo- 

 brunneis ; uredosporis giobosis, 18-24 |i diam., membraua 1-2,5 [x 

 cr., pallide lutea, minute verrucosa, poris germiuativis 4 (5 ?) pa- 

 rum conspicuis. Teleutosoris hypophyllis, rotundatis, sparsis vel 

 gregariis, atro-brunneis, raox nudis; teleutosporis eUipsoideis utrin- 

 que rotundatis, medio non vel leuiter constrictis, 28-37 «= 17-24, cel- 

 lulis seusira paribus, merabrana bruunea, ubique aeque crassa, levi, 



