MYCOLOGICAL NOTES 367 



which he performed ; in October he brought a phxnt of T. repens, 

 with the Uromyces upon it, indoors, and kept it there till the 

 following summer. During all this time it produced only teleuto- 

 spores on the leaves which it continued to bear. Evidently, 

 though he attempts to explain the occurrence in a different way, 

 he had before him U. flectens. There can be no doubt that 

 many (if not most) of the British Uromycetes on T. repens belong 

 to that species. I have never seen a British specimen of the 

 aecidium, such as occurs in U. Trifolii repentis, nor is there one 

 in the Plowright herbarium, or in that at South Kensington. 



The teieutospores of U. flectens are, as described by Lagerheim 

 and Sydow, either perfectly smooth or provided with a few largish 

 warts, which are either scattered or arranged more or less irre- 

 gularly in lines. It is, perhaps, these warted spores which have 

 been mistaken for uredospores, from which, however, they can 

 easily be distinguished by their thicker epispore (2 /a thick) and 

 by their single apical germ-pore. The warts can be seen most 

 distinctly when the spore is viewed dry. Also, in all the speci- 

 mens I have examined, from Ireland and from Wales, as well as 

 from this neighbourhood, most of the spores have a little well- 

 marked collar or apophysis at the apex of the pedicel, just below 

 the base of the spore, usually of the same brown colour as the 

 epispore itself, while the short thin pedicel is nearly hyaline. 

 How far this is peculiar to the species I cannot yet say. 



There are thus three species of Uromyces in Britain (?) on 

 Trifolium : U. Trifolii repentis Liro and U. flectens Lagh. on 

 T. repens, and U. Trifolii L6v. on T. pratense and T. hyhridum. 

 The first has aecidio-, uredo-, and teieutospores ; the second has 

 teieutospores only, while the third has uredo- and teieutospores. 

 The markings of the teieutospores appear to be identical in all 

 three. In addition to these, I have a Uromyces from this neigh- 

 bourhood on Trifolium mimis, which belongs to a different group 

 of species; I refer it to U. striatals Schrot., which is mentioned 

 in the following paragraph. 



Uromyces Loti Blytt. In August last Mr. T. B. Eoe sent me 

 from Scarborough a Uromyces on Lotus corniculatus, which agrees 

 exactly with U. Loti Blytt. The teieutospores have a very small 

 hyaline papilla, and are marked vnih minute warts arranged in 

 undulating longitudinal lines. The sculpture of the spore ap- 

 proaches that of U. striatus Schrot., but is less marked. It belongs 

 to the same group of species as the latter, having its aecidium, 

 according to the experiments of Jordi, on Euphorhia Cyparissias ; 

 other species included in this group are U. Astragali, U. Pisi, and 

 U. Fischeri-Eduardi, but the teieutospores of the two latter have 

 their warts not arranged in lines and therefore do not appear 

 striated, while those of U. Astragali have the striations less dis- 

 tinct (according to Sydow) than those of U. Loti. 



Uromyces ambiguus L6v. In July and August I received 

 from Yorkshire (W. West) and from Ireland {H. C.Hatvlcy) speci- 

 mens of a Uromyces on Allium, which belong to this species. It 



