314 THE JOURNAL OF BOTANY 



same leaves with those which have paraphyses in great abundance, 

 it does not seem quite certain that the two supposed species are 

 really distinct. 



P Urebo festucjs DC. in Flor. Fr. vi. 82. Kleb. u. Lind. / c 

 p. 883. 



_ On Festuca ovino, F. rubra, F. durinscula, at various places, 

 King's Norton, Alvechurch, Droitwich, Hereford, etc., I have found,' 

 at distant intervals and always in small quantity, a Uredo with 

 spores similar in some respects to those of Puccinia disperga. The 

 uredospores are often perfectly or nearly spherical, more rarely 

 broadly oval; they have brownish-yellow walls (1|ji thick), which 

 externally are not so much echinulate as covered all over with little 

 stumpy points. The germ-pores, usually 4-G, are like those in 

 P. dispersa. The sori are small, always buried in the leaf-tissue, 

 generally near to the middle line, at first orange, then as they get 

 old brownish-black, and becoming more prominent, but never pul- 

 verulent. There are no paraphyses. The tissue round the young 

 sori is widely and conspicuously yellowed, and, as the sori are often 

 in a single line down the middle of the narrow leaf, it presents a 

 brindled appearance, after the style of Eulalia zebrina, with alternate 

 bands of green and yellow. 



No teleutospores have been found at any time on the same plants, 

 although looked for, and therefore it is "quite uncertain to what 

 species the JJredo should be assigned. It does not seem likely to be 

 Puccinia festuca; Plowr., and it is certainly not P.festucina Syd. 

 It might be JJredo f est uccd DC. (found in France and Germany on 

 F. fflauca), but the spores are never in the least pyriform. Klebahn 

 suggests that this latter Uredo may belong to Uromyces ranunculi- 

 festucce Jaap, which can be nothing but a form of Uromi/ces festucce 

 Syd. What is required is to discover the teleutospores, without 

 which one cannot arrive at any conclusion. 



On Festuca ovina I have also found a different Uredo, with 

 paraphyses which suggest that it might belong to Puccinia gibberosa 

 Lagerh., but here again there are no teleutospores, and the quantity 

 found has always been too small to permit of a decision. 



Melampsora salici-pentandr2e Kleb. In British Rust-Funr/i , 

 p. 345, I mention the probability that this species had been found* in' 

 England on Salix fragilis, \ have also seen (Irish Naturalist, 

 1912, p. 112) an Irish specimen, on 8. pentandra, which is assigned 

 to the same Melampsora. Since then I have received from Mr. Bovd 

 an Ayrshire specimen on S. pentandra, which is undoubtedlv the 

 true species. It is easily distinguished by its very minute teleuto- 

 sori, which occur on both surfaces of the leaves, though especiallv 

 abundant on the upper surface. 



Thecopsora galii De Toni. This very rare fungus is recorded, 

 in British Bust-Fungi, p. 370, only on Galium verum. Mr. Boyd has 

 sent me excellent specimens on Galium saxatile, from several locali- 

 ties in Ayrshire, Buteshire, Renfrewshire, and Dumfriess-shire, as well 

 as some on another known host, viz. Asperula odorata, from Dalrv, 

 Ayrshire. In several instances Mr. Boyd noticed that the affected 

 Galium was growing in the neighbourhood of Fir-trees. 



