826 Uredinales, Pucciniacert-, Pliragmidiese, Fromuiea. 



ampbigenis, iudefiuitis. iriegularibus, ad uervos et caules elou- 

 gatis, bullatis, 0,5-1,5 nim. longis, 0,3-0,5 uiui. latis, saepe in gre- 

 ges irregulares coufluentibus, taudeui uudis, pulverulentis, epider- 

 luide rupta ciuctis, flavidis ; parapbysibu.s periphaericis, uumero- 

 sis, leuiter incurvis, cyliudraceis v. clavatis, 50-65 ix long. 10-13 \i 

 latis, liyalinis, membraua teuui 1-1,5 ji crassa, ad apicem 4-6 {jl 

 crassa; aecidiosporis ellipsoideis, dense grossiusculeque verrucosis, 

 subliyaliuis, 20-2^*15-20, poris germ. iudistiuctis sparsis iustruc- 

 tis; teleutosoris liypophyllis ; teleutorporis (paucis tautum visis) 

 cyliudraceis, 5-7 (pleruuique 6-) septatis, ad septa non vel leniter 

 constrictis, apice papilla conica 5-10 {i longa auctis, inaequaliter 

 miuuteque verrucosis, atro bruuneis, 79-108 * 26-30, quaque cellula 

 plerumque poris germiuationis 3 instructa, episporio 2,5-3,5 [i crasso; 

 pedicello sporam aequante vel dimidio superante, sursum leuiter 

 colorato, aequaliter cybudraceo, 7-9 ji cr. 



Hab. iu foliis R u b i s t e 1 1 a t i , Disenchantmeut Bay, Alaska 

 Americae bor. (W. Trelease). 



XENODOCHUS Schlecht. — Syll. VII p. 750. 



1. Xenodochus minor Arth., N. Am. Fl. Ured., 1912 p. 182, Phragmi- 286} 

 dium m/Hus (Arth.) Syd., Ured. III p. 158 (1912). — Teleutosoris am- 

 phigenis v. caulicolis, rotundatis v. elongatis, 2-5 mm. v. ultra 

 lougis, ^/^-1,5 mm. latis, saepe conflueutibus, pulvinatis, mox uu- 

 dis, epidermide rupta cinctis, atro-brunneis \ teleutosporis cybn- 

 draceis v. subinde subclavatis, saepe curvatis, 2-6 (plerumque 5) 

 septatis, ad septa leniter constrictis, levibus v. subinde ad apiceui 

 papilla uua v. paucis minutis hyalinis obsitis, dilute castaneo-brun- 

 neis, ad basim saepe dihitioribus, 40-140*16-21, loculis inferiori- 

 bus subinde longioribus, quaque cellubi poris germinationis duobus 

 in superiore juxta septum oppositis praedita, celhila apicali poro 

 siugulo instructa ; pedicello hj^aliuo, brevi, 6-9 ^ crasso. 



Hah. in foliis S a n g u i s o r b a e 1 a t i f o 1 i a e [Rosaceae], Kar- 

 htlv Kadiak Island Alaska, America bor. (W. T. Hornes), 



FROMMEA Arthur, Bull. Torr. Bot. Chib, 44, p. 503 (1917). — Cyclum 

 evolutionis i^j^cnidia, uredo-et teleutosoros complectens, autoicum ; 

 pycnidiis subcuticularibus caeteris soris subepidermicis. — Pycuidia 

 hymenio applanato praedita, tilamentis ostiolaribus carentia. Ure- 

 dosori paraphysibus paucis' vel uullis praediti : uredosporae in pe- 

 dicellum singulatim prodnctae, palhdae, poris iudistinctis saepius 



