UREDINALES OF GUATEMALA 
427 
more cylindrical ones in a sorus than capitate ones. The species was 
collected by Kellerman on C. hiflora, at Gualan, Dept. Zacapa, Dec. 
30, 1905, II, III, 5441, and reported by Kern in Journ. Myc. /. c, 
and issued in Sydow, Uredineen 2o8g, and in Kellerm. Fungi Sel. 
Guat. 9. 
37. Ravenelia inconspicua Arth. (on Caesalpiniaceae). 
Caesalpinia exostemma Moc. & Sesse, Sanarate, Dept. Guatemala, 
Feb. 10, 1916, II, III, 4'/6. 
Heretofore only the type collection of this species has been known, 
which was obtained by Professor Holway in Mexico on a host identified 
only as "Caesalpinia or Cassia." The present collection agrees with 
the type in all respects except that the paraphyses have the walls 
thinner at the sides and thicker above. 
From the present study of the two collections, it becomes evident 
that the following modifications should be made in the original descrip- 
tion of the uredinia: urediniospores 13-16 in diameter, the wall 
1.5-2 ix \ paraphyses thickened above, 3-9 /x. 
38. Ravenelia humphreyana P. Henn. (on Caesalpiniaceae). 
Poinciana pulcherrima L. 
A collection made by Kellerman at Gualan, Dept. Zacapa, Dec. 27, 
1905, II, III, 5427, and reported by Kern in Journ. Myc. /. c, and also 
issued in Kellerman's Fungi Selecti Guatemalensis 8, and in Sydow's 
Uredineen 2088. Apparently only one collection was made, although 
Kern reports the year as ''1906," and on the label of Kellerman's 
exsiccati the number is given as "5727." It is a common rust of 
tropical America, wherever the host occurs. 
39. Ravenelia similis (Long) Arth. (on Fabaceae). 
Brongniartia sp., San Felipe, Dept. Retalhuleu, Jan. 13, 191 7, III, 
706. 
The host formed a small tree in hedgerows, as seen by Professor 
Holway, but was not in flower or fruit. The species has heretofore 
been known only from central Mexico. 
40. Ravenelia Indigoferae Tranz. (on Fabaceae). 
Indigofera mucronata Spreng., Solola, Jan. 27, 1915, II, iii, 122. 
Indigofera suffruticosa Mill., Palin, Dept. Amatitlan, Dec. 24, 1916, 
II, 637. 
