1891.] A. Barclay — Additional Uredineae /rom Simla. 229 



fungus of somewhat uncertain nature. Some leaves had circular spots 

 varying in diameter from 1 to 8 m.m., whilst others had large hypertro- 

 phies of the petiole as it enters the lamina, and these were uniformly 

 covered with bright orange red pulverulent spores. Transverse sections 

 through the fungus and leaf show that the spores are not borne separately 

 on stalks, but from a cup-like depression like the pit of an aecidium 

 without any peridium. There were also numerous superficial spermo- 

 gonia. The spores are orange red, oval or pear-shaped, very spiny, de- 

 cidedly thickened at the free end (reminding one of the aecidio- and 

 uredospores of Puccinia Prainiana). When just wetted they measure 

 38 — 30 X 22 — 20/A. They become detached without any portion of 

 the stalk adhering. The spores are given off from both surfaces of the 

 leaves. By applying nitric acid I saw that each spore had two germ 

 pores. 



This is the first member of the Boragineae which I have seen at- 

 tacked in India by a Uredine. As Puccinia Buligo-vera, or some 

 variety or allied species, is undoubtedly the most prevalent and destruc- 

 tive rust on wheat, barley, and oats in India, I had long looked 

 for some associated form on a Boragineous host, and this not only 

 by personal search, but also by correspondence. I am afraid, however, 

 that this particular Uredine cannot be the associated form I have been 

 looking for, although it is just possible that it is. For although the 

 spores are given off like uredospores, the cup- shaped depressions in 

 which they are formed, the presence of spermogonia, and the hypertro- 

 phy of the host's tissue all render it possible that we have here an ano- 

 malous Aecidium. This question will have to be tested by experiment. 



Uredo Agrimoniae, D. C. 



On Agrimonia Eupatorium, Linn, 



This plant is frequently found attacked with a Uredo in these re- 

 gions; but I have never seen a teleutosporic stage. The Uredo pus- 

 tules are hypophyllous, very numerous, and minute. The spores are 

 orange yellow, oval, warty or spiny, and measure 22 — 17 x 14 — 13/a, 

 when just wetted. 



This is no doubt the widely distributed Uredo Agrimoniae. 



EXPLANATION OF PLATES. 

 Plate IV. 



1, Teleutospore of Phr. octoloculare, x 220. 



2. Teleutospore and nredospore of Phr, nepalense, former x 220, and 



latter x 350. 



