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BULLETIN OF THE BUSSEY INSTITUTION. 248 
Mass., and the other on Spartina stricta at Wood’s Hole, Mass. Both 
of these grasses were partly submerged at high tide. ‘The species on 
Spartina was first observed in August, when Uredospores were abun- 
dant. They were large, bright orange, and measured .03 mm. They 
germinated and flourished equally well, whether sown in salt or fresh 
water. ‘The teleutospores were one-celled, .025 mm. by .015 mm. in 
size, oval, and much thickened at the apex, which was acute. We 
have also found the same species growing on Juncus effusus on 
the banks of the Bussey Brook. The specimens on Juncus, which 
were gathered in April, contained naturally only teleutospores; which, 
when placed under a bell-glass, produced at once promycelia and 
sporidia, showing that the fungus was in a normal condition. A com- 
parison with a Schweinitzian specimen of Puccinia Junet, Schw., 
shows that it is the same as our specimens gathered at the Bussey. 
There is a sketch of the spores accompanying the specimen, showing 
that Curtis recognized their unicellular character; but there is added 
in pencil the remark that the spores are apparently young. That 
could not have been the case with our specimens, which had lasted 
through the winter, and which were ripe, as shown by the fact that 
they at once germinated. Together with Schweinitz’s specimen, is one 
collected by Sprague, No. 5310, also on Juneus effusus, in which the 
spores are like those in the specimen of Schweinitz, except that occa- 
sionally one is found two-celled as in a true Puccinia. The same 
species was found by Howe in New York, and Dr. Michener in 
Pennsylvania; and recently we have received the same species on 
Juncus mertensianus collected in Colorado by Mr. T. S. Brandegee. 
Puccinia Junct, Schw., described in the “Syn. Fung. Am. Bor.” No. 
2913, seems to have escaped the notice of most botanists. It is 
mentioned as a Puccinia, in the 22d Report of the “ Botanist of New 
York State.” Temporarily all the specimens mentioned, whether on 
Juncus or Spartina, must be referred to Uromyces Junci (Schw.). It 
may be asked whether there is not some older European name. Cer- 
tainly the same species occurs in Europe. We have a specimen collected 
by Roussel near Paris, in 1843, marked Puceinia Junci, Chevalier, Flore 
de Paris. We are not familiar with the fungus on Dactylis mentioned 
by Schreeter, in “die Brand und Rostpilze Schlesiens” as Uromyces 
Dactylis, Otth.; but the description indicates that it is very much like 
Uromyces Junci (Schw.). In “ Grevillea,” June, 1877, p. 152, Cooke 
