Uredinacese, Amerosporse, Uromyces. 249 



Hab. in Cachryde pteroclsenae," Constantine in Algeria (C. 

 Choulette). 



20. Uromyces Mercurialis Henn. in Hedw. 1902, p. (62). — Maculis 852 

 minutis, rotundatis, fuscidulis; soris gregarie sparsis, epidermide 

 rupta, pallida cinctis, ferrugineis, pulverulentis, ca. 0,6-1 mm. 

 diarn.; teleutosporis ellipsoideis v. ovoideis, interclum subglobosis, 

 apice subhyalino papillatis, papilla hemisphaerica 3-4 fj.. diam., fla- 

 vo-brunneolis, intus granulatis, 15-26 * 15-18, episporio brunnco, 

 tenui, levi; stipite fragili, hyalino brunnescente, usque ad 20« 3-4. 



Hab. in foliis vivis Mercurialis leiocarpae, Mont Yoko- 

 gura Japoniae (Yoshinaga). 



21. Uromyces oaxacanus Diet. et Holw. in Bot. G-az. 1901, p. 327. 853 



— Soris epiphyllis, irregulariter sparsis, rarissime hypophyllis, 

 parvulis, pulverulentis, nigris; teleutosporis ovatis, ellipticis vel 

 subglobosis, frequenter angulosis ' et irregularibus, 25-35 « 18-24, 

 episporio pallide brunneo, apice non incrassato, verrucoso; pedi- 

 cello hyalino, stepe spor;e sequilongo. 



Hab. in foliis Jatrophae urentis, Oaxaca Mexico. 



22. Uromyces Euphorbiae-connatae N. Speschnew, Fungi transcaspici 854 

 et turkestanici, 1901, p. 7, tab. I, fig. 16-21. — Soris amphigenis 

 sparsis, in acervulos plus minus mediocres, circulares congestis, 



in pag. inferiore foliorum hemisphnericis, epidermide tectis, dein 

 suberumpentibus ; uredosporis dilute brunneis, obovatis, irregula- 

 riter verrucosis, 20-24 « 16-19, poris germinationis 2 cequatoriali- 

 bus instructis . teleutosporis ellipsoideis vel obovatis, flavido-casta- 

 neis, 24-29 « 20-25 ; pedicello ca. 50 jj.. longo, hyalino. 



Hab. in foliis Euphorbise connatoe in Rossia asiatica. 



23. Uromyces hypsophilus Speg. Mycet. Argent. ser. II, 1902, p. 60. 855 



— Maculis nullis sed matrice carnosulo-incrassata, pallescente; 

 acervulis rarissime epiphyllis suborbicularibus, 0,5-1 mm. diam., 

 epidermide disrupta cinctis, srcpius per .rtatem confluentibus ac 

 totum hypophyllum obtegentibus ; soris subconfluentibus fulvo- 

 ferrugineis; sporis globosis v. obovatis 26 » 20-25, eximie minu- 

 teque apiculatis, spiraliter tenuiterque 10-15-striatis, fulvis, pedi- 

 cello hyalino fragilissimo breviore donatis. 



Hab. ad folia viva Euphorbise spec. prope Mmuloza, in 

 Argentinia. — Species Ur. scutellato (Schrk.) Lev. et Ur Kalmusii 

 Sacc. aflinis, tamen sat distinctus videtur. 



24. Uromyces Kabatianus Bub. in Vetergr. Mic. rar. selecti, Bot. Not. 856 

 1902, pag. 176. — Pycnidiis et aecidiis in maculis lutois, rotun- 



