UREDINALES OF GUATEMALA 
473 
The species is listed in Sydow's Monog. Ured. i : 457, as P. Euphor- 
biae minor Diet. & Holw., described in 1897, and credited to Mexico, 
but it is also identical with Uredo velata Ellis & Everh. (Bull. Torrey 
Bot. Club 22: 435. 1895), on Chamaesyce cordata (Meyer) Millsp. 
{Euphorbia cordata Meyer), from Hawaii. The type specimen of 
Uredo velata has been examined and shows telia as well as uredinia. 
The species is closely related to the preceding one, but is readily dis- 
tinguished by the broader and shorter teliospores, and the shorter 
pedicels. 
132. PucciNiA Arechavelatae Speg. (on Sapindaceae). 
Cardiospermtim coluteoides H.B.K., Progreso, between Guatemala 
City and Barrios, Feb. 12, 1915, 208. 
A short-cycle rust, very common in the tropics. The host of this 
collection has not before been reported. The species was collected by 
Kellerman, on C. grandifolium Swartz, at El Rancho, Dept. Jalapa, 
Jan. 6, 1906, 54^/, and reported by Kern in Journ. Mycol. /. c. 
133- PucciNiA Gouaniae Holw. (on Frangulaceae) . 
Gouania tupuloides (L.) Urban {G. domingensis L.), Escuintla, 
Feb. 17, 1916, n, 500. 
A long-cycle species, having pycnia, uredinia, and telia, known 
from Cuba, Porto Rico, and Panama. 
134. PucciNiA INVAGINATA Arth. (on Frangulaceae). 
Gouania lupuloides (L.) Urban {G. domingensis L.), Escuintla, Feb. 
17, 1916, ii, HI, 
Gouania sp., Mazatenango, Feb. 21, 191 6, H, 518] Guatemala 
City, Dec. 21, 1916, ii, HI, 614; Moran, Dept. Amatitlan, Dec. 
22, 1916, ii, HI, 618. 
The rust is a long-cycle form, for which the primary stage is. un- 
known, but it doubtless has pycnia and no aecia. It was first collected 
on the island of St. Croix in 1896, and named Uredo Gouaniae Ellis 
& Kelsey. Since then it has been taken a number of times in Porto 
Rico, always in the uredinial stage. The telia have heretofore been 
known only from Cuba. The teliospores are very similar to those of 
P. Gouaniae Holw., only slightly larger, but the one-pored, peculiarly 
shaped urediniospores are quite unlike those of that species. 
135. PucciNiA heterospora Berk. & Curt, (on Malvaceae). 
Abutilon discissum Schlecht., Zunil, Dept. Quezaltenango, Jan. 28, 
1917, '/82. 
