Z0& TJie Scottish Naturalist. 



be said, to use this analogy, that our Society is composed prin- 

 cipally of the union of those who specially study fungi, and those 

 who specially study algae, aerial or aquatic ; the fungologists vastly 

 predominating, and hiding their green brethren out of sight by 

 their overwhelming numbers and the magnitude of their pursuits. 

 Nothing can be said against this arrangement, for hitherto it has 

 worked admirably ; the parasite in this case at least having cer- 

 tainly contributed by its more popular interest and importance, to 

 the prosperity of the Society, and helped it to grow and become 

 what it is, to the liking of all. But, at the same time, it may be 

 pleaded that a little more attention should be devoted to lichens 

 and mosses ; that they should have an opportunity to vindicate their 

 own claims to being more generally studied. I am sure the fungo- 

 logists among us will be only too glad to encourage the students 

 of other departments to carry on their researches ; and we shall 

 gladly welcome to our membership a larger number of those who 

 have been working in the more neglected fields of our science. 

 By mutual and hearty co-operation, our ardent desire that our 

 Society may flourish like a green moss, endure as long as a crusta- 

 ceous lichen on a rock, and grow larger and more vigorous like a 

 fungus, although other similar societies should decay, will be ful 

 filled! 



ADDITIONS TO SCOTCH PERONOSPOR53. 



In my Revision of these Fungi last year (Scot. JVaf., 1887, 

 pp. 84-85), I enumerated several species that might be found in 

 Scotland, and I have now to report the discovery of two of these. 

 19.* P. Lamii A.Br. 



Usually hypophyllous, diffuse, or in dirty whitish spots ; conidiophores 

 4-7 times bifurcated, terminal branchlets slender, recurved ; conidia 

 globular or elliptical, 16-24 by 15-21, pale violet ; oospores said to 

 be small and brown. 



On leaves of Latniwn purfiureum, in September. 



S. Moray (Forres, Rev. Dr. Keith). 



25. P. Rumicis Corda. 



On young shoots and leaves, diffuse, dirty white or pale violet j conidio* 

 phores 3-6 times bifurcated, terminal branchlets slender, nearly 

 straight ; conidia ovate or elliptical, 23-31 by 17-22, dull pale violet. 



On Polygonum aviculare, in September and October. 

 Dee (a few miles north of Aberdeen, found by myself), 



- - James W. H. Trail, 



