168 SEMI-CENTENNIAL OF TORREY BOTANICAL CLUB 
This imperfectly known rust was found in the phanerogamic 
herbarium of the N. Y. Bot. Garden, collected at Paso Real (Prov. 
Pinar del Rio), 1906, Abarca & O'Donovan 2634. It is known also 
from Porto Rico and from Guatemala, on the same host. 
134. UREDO ERYTHROXYLONIS Graz. Bull. Soc. Myc. Fr. 7: 153. 
1801. 
ON ERYTHROXYLONACEAE: 
Erythroxylon havanense Jacq., San Antonio de los Baños 
(Prov. Habana), Nov. 21, 1904, Baker 4127 (Barth. 
Fungi Columb. 2287); San Diego de los Bafios (Prov. 
Pinar del Rio), Feb. 7, 1915, Johnston 174; Soledad, 
Cienfuegos (Prov. Santa Clara), Nov. 5, 1915, Johnston 
198; Santiago de las Vegas, Oct. 24, 1915, Johnston 131; 
Cerros de Vivijagua, Isle of Pines, Feb. 28-29, 1916, 
Britton, Britton & Wilson 15023; Taco Taco (Prov. Pinar 
del Rio), Sept. 17, 1916, Johnston 878. 
This imperfectly known species was also detected on a phanero- 
gamic collection of the same host in the N. Y. Bot. Garden, from 
Sierra de Anafe (Prov. Pinar del Rio), Dec. 28, 1911, Percy Wilson 
11569. The only other station in North America for this South 
American rust is on Mona Island, a small island not far from 
Porto Rico. 
135. Uredo Saviae sp. nov. 
ON EUPHORBIACEAE: 
Savia sessiliflora (Sw.) Willd., San Juan, Isle of Pines, 
March 15, 17, 1916, Britton, Britton & Wilson 15453. 
Uredinia hypophyllous, scattered, oval or oblong, 0.1-0.3 mm. 
long, subepidermal, rather tardily naked, cinnamon-brown, rup- 
tured epidermis usually overarching and conspicuous; peridium 
and paraphyses wanting ; urediniospores angularly obovoid, usually 
triangular above, 16-20 by 23-29 4; wall cinnamon-brown, thin, 
about ти, closely echinulate, the pores 3, approximately equatorial, 
in the projecting angles. 
The spores have an unusual appearance from the position of 
the pores in the three corners. Seen from above the spores appear 
triangular. 'They are usually narrowed and sometimes shrunken 
below the pores, giving a pyriform appearance from the side. 
