22 
Mycologia 
thick-walled and coarsely echinulate spores without para- 
physes readily distinguish this species from related forms. 
The type collection, with which the Porto Rican material 
has been compared, is from Peru, and on an undetermined 
species of Olyra. This is the second record for the 
species. 
150. Uredo Anthurii Hariot, on Anthurium scandens (Aubl.) 
Engler (Araceae), El Alto, July 16, 1915, 8yi6. The host 
ranges from Mexico to Brazil. The fungus was described 
(Jour, de Bot. 1892, p. 458) from material collected on an 
undetermined species of Anthurium in the greenhouses of 
the Jardin des Plantes in Paris. The present record is 
probably the first of a collection from the field. The 
fungus on the Porto Rican material may be described as 
follows : Uredinia chiefly hypophyllous, scattered, or some- 
what grouped on slightly discolored spots, bullate, the 
membranous epidermis tardily breaking away, pale, some- 
what pulverulent, 0.5-0.8 mm. across; paraphyses and 
peridium none; urediniospores irregularly obovoid, 18-26 
by 29-37 />,; wall colorless or nearly so, thin, 1-1.5/14, mod- 
erately echinulate, pores not visible. 
151. Uredo globulosa sp. nov. 
Uredinia chiefly hypophyllous, numerous over the whole length 
of the leaf, 2-5 on well-defined, purplish-black spots, 0.5-1 mm. 
across, or singly without discoloration, bullate, in cross-section 
depressed-globose, 65-80 fi high by 1 50-325 /u, broad, somewhat 
smaller when solitary ; peridium usually deeply discolored, sharply 
delimiting the sorus from the rather loose leaf-tissue, opening by 
a central orifice, the cells polygonal, with walls about 2/u, thick; 
urediniospores stylosporic, broadly obovoid, 15-19 by 20-26 /u; 
wall colorless or nearly so, thin, about 1.5 /u., finely and closely 
echinulate, the pores obscure. 
On Amaryllidaceae : 
Hypoxis decumbens L., Las Marias, July 10, 1915, 812^ 
(type), Bandera, July 15, 1915, <5*577, ^<^30- 
This distinctive rust is especially notable by reason of the pedi- 
cillate spores borne in a delicate, sac-like peridium, which be- 
comes filled with the detached spores, the whole structure lying 
