Jan. 1907] The Rusts of Guatemala 19 



(host no. 5191) Jan. 19, 1906, no 5450: Ipomoea fyrianthina 

 Lindl. (host no. 5192), Moran, Depart. Amatitlin, alt. 1205 m., 

 Jan 25, 1906, no. 5435 ; Pliarbitis hederacea (L.) Roth (host nos, 

 5185, 5186), Laguna, Depart. Amatitlan, alt. I2CX) m., Jan. 17, 

 1906, nos 5409, 5405. 



All of the above hosts were determined by H. D. House. 



2. COLEOSPORIUM VERBESINAE Diet. & Holw. — 

 On Verbesina tiirbacensis H. B. K. (host 5190), Los Amates, 

 Depart. Izabal, March 15, 1905, no. 5315; Verbesina gigantea 

 Jacq. (host no. 5183), Patalul, Depart. Solola, Feb. 13, 1906,, no. 



5385. 



The hosts were examined by J. M. Greenman, who has at- 

 tached the specific names with some doubt. 



3. COLEOSPORIUM ELEPHANTOPODIS (Schw.) 

 Thuem. — On Elephantopus mollis H. B. K., (det. by H. A. 

 Gleason ), Los Amates, Depart Izabal, alt. 90 m., Mar. 15, 1905, 

 no. 5362. 



4. COLEOSPORIUM EUPATORII Arth. — On Enpa- 

 toiiini collinum DC, (host no. 5181), Palmar, Depart. Quezal- 

 tenango. Feb. 11, 1906, no. 5458. 



This host was determined by J. M. Greenman, and is a new 

 one for the species which heretofore has been known only on 

 Enpatoriuui macrophylhini L. 



5. COLEOSPORIUM PLUMIERAE Pat. — On Plumi- 

 era rubra L., (host no. 5218), Palmar, Depart. Ouezaltenango, 

 Feb. II, 1906, no. 5460. 



This is the first time this species has been collected on the 

 continent, the other collections coming from the West India 

 Islands. The host has been identified by John Donnell Smith. 



6. MELAMPSORA BIGELOWII Thuem. — On Salix 

 Humboldtiana Wild, (host det. by R. F. Griggs), near Patalul, 

 Depart. Solola, Feb. 16, 1906, no. 5473 



7. UROPYXIS MIRABILISSIMA (Peck) Magn. — On 

 Odostemon sp., Volcano Agua, Depart. Sacatepequez, alt. 3000 

 m., Feb. 15, 1905, no. 4624. 



8. RAVENELIA SPINULOSA Diet. & BOolw. — On Cas- 

 sia biiiora L (host no. 5189), Gualan, Depart. Zacapa, alt. 122 

 m., Dec. 30, 1905, no. 5441. 



This host has been identified by J M. Greenman and is a 

 new one for this species of rust. Sydow (Annal. Myc. i 1330, 

 1903) and Dietel (Bot. Centr. Beih. 20:394, 1906) have reported 



