UREDINALES OF GUATEMALA 
dis (Curt.) Trel. & Earle, but with teliospores much shorter. The 
range is more southernly than that of P. Hyptidis. 
The entry in the North American Flora (7: 212) of Hyptis spicata 
as a host under Eriosporangium Hyptidis was founded on four collec- 
tions made by Kellerman in Guatemala, and reported by Kern (Journ. 
Myc. 13: 22) under Puccinia Hyptidis. A recent study of these 
specimens indicates that they should be transferred to P. medellinensis , 
and that the hosts are not H. spicata, as reported, but as follows: 
H. pectinata (L.) Poir., Moran, Dept. Amatitlan, Feb. 11, 1905, II, 
^jio;H. polystachyaH.B.K., Moran, Feb. 11, 1905, II, 5jjj, and 
Fiscal, Dept. Guatemala, Jan. 11, 1906, II, ^44^. 
167. Puccinia parilis (Arth.) Arthur comb. nov. (on Lamiaceae). 
Hyptis stellulata Benth. (Mesosphaefum stelhdatum Kuntze), Agua 
Caliente, Dept. Guatemala, Feb. 10, 1917, O, II, iii, 848. 
This species has heretofore been known only from Mexico and 
only on Hyptis pectinata, a host very similar in its appearance to H. 
stellulata. There are plenty of pycnia scattered over this collection, 
but rarely associated intimately with the uredinia. The main features 
of the collection, however, indicate that it should be referred to P. 
parilis, a species without aecidioid aecia, and which has heretofore 
been called Argomyces parilis Arth. (N. Amer. Fl. 7:217. 1912). 
There is also present on some of the leaves a scanty amount of 
teliospores that are small, broadly ellipsoid, with a verrucose, dark 
brown wall and short colorless pedicel. They are much like those of 
the short-cycle Hyptis rust, P. distorta Holw. 
168. Puccinia pallidissima Speg. (on Lamiaceae). 
Stachys Lindeni Benth., Agua Amargas, Dept. Quezaltenango, 
Jan. 30, 1917, 805. 
The species is a short-cycle form. The Sydows (Monog. Ured. 
i: 299. 1902) maintain Puccinia alhida Diet. & Neg. (Engl. Bot. 
Jahrb. 24: 160. 1897), as distinct from P. pallidissima on the ground 
that the latter has the wall of the spore of uniform thickness. Type 
material has not been seen by the author for either form, but a collec- 
tion in the Arthur herbarium labeled P. pallidissima, made by Lorentz 
at the type locality of that species in Argentina, and on Stachys arvensis, 
the type host, shows the spores to be thickened above. Believing that 
the two forms are essentially alike, they are here united. This is the 
first record of a rust on Stachys for North America. 
