170 



mersis, atris in macula plus, minusve orbiculata, arescendo- 

 cinerea, late irregulariter fusco cincta; sporis ellipticis, utrin- 

 que rotundatis, simplicibus, griseis, 5—8 fi long., 3 {* crass. 



Ad folia viva JSorbi Aucupariae Lin. pr. Minussimk. 

 ■ Phyllosticta gallarura Thüm. spec — Ph. peritheciis 

 epi-interdum etiam hypophyllis , dense gregariis, submagnis, 

 conico- emersis, basi epidmnide lacerata cinctis, atris in 

 macula plus minusve orbiculata, arescendo-albicantia, fusco 

 cincta, seniper gallarum Cynipidarum ore ambiens vel in 

 folii pagina inferiore in gallae gibbere positis; sporis ellip- 

 soideis, interdum inac quilateralibus, simplicibus, pallidissime 

 fuligineis, rarissimis, 5— 6 n long., 3.5 n crass. 



Ad Caraganae arborescentis Lam. folia viva pr. Minus- 

 sinsk. 



Ascochyta Martianoffiana Thüm. nov. spec. 

 A. peritheciis magnis, subsolitariis, emersis, conoideis, ater- 

 rimis, epiphyllis in macula plus minusve orbicularia, ochro- 

 grisea, late fusco marginata, subtus fusco-grisea ; sporis bicellu- 

 laribus, inaequali-ovoideis vel fere subreniformibus, cellula 

 una semper major quam altera, utrinque subacutatis, palli- 

 dissime luhgineo-ciriereis, 10 (i long, 4 (i crass. 



In Salicis pyrolaefoliae Ledeb. foliis vivis in sylvis pr. 

 Samodourowka. 



Ascochyta Trollii Thüm. nov. spec. — A. peritheciis 

 epiphyllis, sparsis, minutissimis, semiimmersis, punctiformi- 

 comcis, nigris in macula irregularia, arescendo-albicantia, 

 amphigena, fusco-nigro marginata; sporis ellipsoideis, utrin- 

 que obtusiuscuhs, uniseptatis, 16 (x loDg., 7 (i crass., hva- 

 hnis, episporio subcrasso. 



t In Trollii asiatici Lin. foliis vivis in subalpinis pr. flu- 

 vium Baraksan. 



Ascochyta clematidina Thüm. nov. spec. — A. 

 peritheciis epiphyllis, submagnis, emersis, dense gregariis, 

 nemisphaericis, basi epidermide late cinctis, nigris in macula 

 nulJa vel obsoleta, ochracea, irregularia, subzonata, vix ares- 

 centia; sporis late fusoideis vel subellipsoideis, utrinque ob- 

 tusatis medio septatis, dilute fuligineo- griseis, 16-18 H 

 long., 6—7 fi crass. ' 



Minussinsk. 



W 



Septoria polygonina Thüm. nov. spec. — S. peri- 

 theciis epiphyllis, paucis, minimis, lenticulari-applanatis, emer- 

 sis rascis in centro maculae orbiculatae, ochroleucae, late 

 violaceo margmatae; sporis numerosissimis, aniruste eylindra- 

 ceis, paucicuryatis, utrinque acutatis, coi.timns vel obscure 

 biseptatis, hyalinis, 36-48 fi long., 1.5 t* crass. — A Sep- 



