UREDINALES OF GUATEMALA 
443 
87. Uromyces Gouaniae Kern (on Frangulaceae) . 
Gouania lupuloides (L.) Urban {G. domingensis L.). 
Only the type collection of this species is known, which was ob- 
tained by Kellerman at Laguna, Lake Amatitlan, Jan. 25, 1906, II, III, 
53gi. It was described in Mycologia (3: 290. 191 1). 
88. Uromyces Hyperici-frondosi (Schw.) Arth. (on Hypericaceae). 
Hypericum pratense Schl. & Cham., San Rafael, Dept. Guatemala, 
Jan. 7, 1915, III, 25. 
A long-cycle, autoecious rust, found in Mexico and northward, 
whose aecia are not uncommon in the cooler regions. 
89. Uromyces Howei Peck (on Asclepiadaceae). 
Asclepias curassavica L., Laguna, Lake Amatitlan, Feb. 8, 1915, II, 
203. 
Asclepias guatemalensis Donn. Sm., San Rafael, 7000 feet alt.. 
Dept. Guatemala, Jan. 7, 1915, II, III, 20. 
A common rust in Canada and the United States east of the Rocky 
Mountains, and much less so in Mexico and the West Indies. The 
beginning stages of the life cycle are unknown. 
90. Uromyces Cestri Mont, (on Solanaceae). 
Cestrum aurantiaciim Lindl., Solola, 7000 feet alt., Jan. 28, 1915, I, 
III,74J. 
A South American rust, common in the West Indies where the 
aecia produce discoid galls or hypertrophy. It has not before been 
reported from the continent of North America. 
91. Uromyces maculans (Pat.) Arth. (on Solanaceae). 
Cestrum lanatum Mart. & Gal., Chinautla, Dept. Guatemala, Feb. 
12, 1916, I, 48Q. 
The species also occurs in Costa Rica on C. nocturnum L. It is a 
long-cycle rust with aecia and telia, but no uredinia. 
92. Uromyces Solani Diet. & Holw. (on Solanaceae). 
Solanum nudum H.B.K., Quezaltenango, Jan. 31, 191 7, II, 81^. 
An imperfectly known rust, pycnia and aecia yet undiscovered, 
heretofore known from two localities in southern Mexico. 
93. Uromyces Bouvardiae Sydow (on Rubiaceae). 
Bouvardia leiantha Benth., Guatemala City, Dec. 20, 1916, II, III, 
605. 
This collection tallies closely with the type collection of the species, 
