240 
Mycologia 
■distri'buted in Rab.-Winter, Fungi Eiiropaei 331^, has been studied 
as well as type material of Uredo Eugeniarnm. Authenticated 
material of Uredo Myrtaceariim, distributed in Sydow, Uredineen 
^100, and of Puccinia Jambosae, have also been examined. They 
appear to be identical in their urediniospores, and the teliospores 
of the last mentioned agree exactly with those in the Stevens’ 
collections on the same host. The original descriptions, establish- 
ing the five names above, agree in all essentials where they touch 
upon the same characters. There are no known species of 
Uromyces on hosts belonging to the Myrtaceae, and therefore a 
possible complication is removed. 
In Sydow’s Monog. Ured. i: 437, Spegazzini’s species Uredo 
subneuro.phyla (Anal. Soc. Ci. Agr. 17: 123. 1884), which is on 
a species of Psidimn from Paraguay, is listed as a synonym of 
Puccinia Psidii. I have studied a part of the type collection of 
U. subneurophyla and find that it does not agree with this species, 
and in fact does not belong to the Uredinalcs, being a fungus 
quite unlike a rust. I have seen no material of Spegazzini’s 
Uredo neurophyla, published on the preceding page of the same 
work. This species is said to be on leaves of Myrtaceae, and to 
greatly differ from his U. subneurophyla. So far as one can 
judge from the most inadequate description, it may well be a 
synonym of P. Psidii. 
Two other species of rusts are recorded as inhabiting Myrta- 
ceous hosts. Puccinia sanguinolenfa P. Henn., said to be on 
Myrcia, is really on the Malpighiaceous host, Heteropteryx, as 
pointed out by Holway, N. Am. Ured. i ; 59. 1907. Material 
of Puccinia Rompelii Magn., said to be on Myrtaceae, proves to 
be a distinctive species, quite unlike the above. 
56. Puccinia concrescens Ellis & Everhart sp. nov. 
Puccinia compacta Kunze; Bubak, Hedwigia Beibl. 42: 30. 
1903. Not Berk. 1855, DeBary 1858, or Thiim. 1875. 
On Asclepiadaceae : 
Asclepias curassavica L., ^^ega Baja, Feb. 20, 483, March, 
5/7; Aibonito, June 5, 2139; Manati, Nov. 25, 5310, 
5311; Jajome Alto, Dec. 3, 3645. 
