Uredinacese, Didymosporse, Puccinia. 353 



Hab. in foliis viyis Anodse hastatse, San Miguel Uspantan 

 Guatemala (Heyde et Lux). 

 2G0. Puccinia Sieversiae Arthur, Bull. Torr. Bot. Cl. 1904, p. 3. — 1189 

 Soris teleutosporiferis amphigenis, sparsis, rotundatis vel ovalibiis, 

 epidermide bullata tectis, immersis, pulverulentis, brunneis; te- 

 leutosporis ellipticis vel ovato-oblongis, 32-40 v 20-26, utrinque ro- 

 tundatis vel interdum inferne conicis, ad septum non vel vix 

 constrictis; episporio rugulosulo, sublevi, cinnamomeo-brunneo 1, 

 5-2,5 [x. crasso, superne 4-6 [i. crasso, ssepe subhyalino-umbonato; 

 pedicello brevi, spora breviore, exili, subhyalino. 



Hab. in foliis Sieversiae turbiriatte, Fish Lake, in mon- 

 tibus Uintah, Amer. bor. 



261. Puccinia turrita Arth. in Bull. Torr. Bot. CJub XXIX, 1902, 1190 

 p. 230, Syd. Mon. Ured. vol. I, fasc. III, p. 504. — Soris teleu- 

 tosporiferis amphigenis, sparsis, rotundatis, minutis, 0,5-1 mm. 

 diam., mox nudis, subpulverulentis, obscure brunneis; teleutospo- 



ris ellipsoideis v. oblongis, apice rotundatis v. attenuatis, incras- 

 satis, usque 6 [j.. medio leniter constrictis, basi rotundatis rarius 

 leniter attenuatis, verrucosis, flavo-brunneis, 27-40 « 16-22, rarius 

 usque 24 \x. latis; pedicello hyalino, tenui, brevi, caduco. 



Hab.in foliis vivis Saxifragae bronchialis, Maniton, Co- 

 lorado Amer. bor. (Holway). 



262. Puccinia Parnassise Arthur, Bull. Torr. Bot. Cl. 1904, p. 3. — 1191 

 — Soris teleutosporiferis amphigenis, interdum gregariis, pustuli- 

 formibus, coalescentibus, immersis, pulverulentis, intense brunneis ; 

 teleutosporis ellipticis, 30-37 « 16-20, utrinque rotundatis vel obtu- 

 sis; episporio 1-2 [j.. crasso, bruhneolo, lovi vel superne obscure 

 punctato ssepe apice hyalino-umbonato; pedicello hyalino, sporfi 

 breviore, deciduo. 



Hab. in foliis Parnassise fimbriatic, Bauff, Alberta Amc- 

 ric83 bor. (E. "W. D. Holway). 



263. Puccinia Laurentiana Trelease, Harrim. Alaska Exped. Crypt. 1192 

 p. 38. — Soris hypophyllis, castaneis, rotundis, circ. 1 mm. diam. ; 

 teleutosporis brunneis, subconstrictis, 50 ^ 20, vertice incrassatis 



et pallide apiculatis; tunica crassiuscula nec striata nec verrucosa; 

 pedicellis hyalinis, brovibus, fragilibus. 



Hab. in foliis Saxifraga: noglectie var. stolonifer r.e , 

 St. Lawrence Island, Behring Sca, Alaska (Macoun). — Affinis 

 Pucc. /Saxifragce-ciliatce. 



264. Puccinia aspera Diot. et Holw. in Bull. Torr. Bot. Club XXIX, 11;« 



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