428 
J. C. ARTHUR 
Indigofera sp., Antigua, Dept. Sacatepequez, Dec. 27, 1916, II, III, 
640; Panajachel, Dept. Solola, Jan. 3, 191 7, II, III, 66y. 
A very common rust both of insular and continental America. 
41. Ravenelia Lonchocarpi Lagerh. & Diet, (on Fabaceae). 
Lonchocarpiis sp., Mazatenango, Dept. Suchitepequez, Feb. 22, 
1916, 11,511,522. 
Although no material has been available with which to compare, 
yet the very unusually shaped urediniospores leave little doubt that 
the species in hand is the one described by Lagerheim and Dietel from 
Brazil in 1894. The rust also occurs in Cuba on L. latifolius H.B.K., 
but is not known to have been found elsewhere since the original 
collection was made. The Guatemalan collections show bullate 
hypertrophies, 3-8 mm. across, but no pycnia could be detected on 
them. 
42. Ravenelia appendiculata Lagerh. & Diet, (on Euphorbiaceae) . 
Phyllanthiis acuminatus Vahl, San Felipe, Dept. Retalhuleu, Jan. 
12, 1917, II, iii, 6qq. 
Phyllanthus sp., Solola, Jan. 27, 1915, ii. III, J27; Guatemala City, 
Dec. 21, 1916, III, 616] Panajachel, Dept. Solola, Jan. 3, 1917, 
III, 671. 
The collection no. 699 shows a more pulverulent appearance in the 
telia than usual, although the type collection has also something of 
this tendency toward fragile pedicels. The species also occurs in 
Mexico. 
43. DiCHEiRiNiA BiNATA (Berk.) Arth. (on Fabaceae). 
Erythrina glauca Willd. 
The type collection for Uredo Cahreriana Kern & Kellerm., now 
known to be a synonym of this rust, was made by Kellerman, at 
Livingston, Dept. Izabel, Jan. 18, 1905, 5465. The host was deter- 
mined as Buettneria lateralis, and so reported by Kern in Journ. Myc. 
/. c, but when collections of the same rust from Porto Rico came to 
hand in 1913, the collection was resubmitted to Mr. John Donnell 
Smith, who had named it in the first place, and under date of May i, 
1 91 3, he replied . . . " I now perceive that it should have been referred 
to Erythrina glauca Willd." 
The teliospores were recently found by Mr. H. R. Rosen on a 
specimen in the Arthur herbarium collected in 1906 on Erythrina 
glauca at Paso Real (Prov. Pinar del Rio), Cuba, by Arbaca and 
