130 tup: .ioihx.vl of hotaxy 



spores on leaves of lihodoth'mh'on lii ray turn at Douglas Castle, 

 Lanarkshire, in June, 1913. He afterwards found the teleutospores. 

 The aeeidium-stage was first found hy Dr. Borthwick on the 

 Spruce {Ficea excelsa) in S.W. Scotland in 1913 (see Trans. Bot. 

 Soc. Edinb. 1914, p. xxxiii), and afterwards by Prof. Trail in Aber- 

 deenshire, Sept. 1916, where it was becoming- a danger to Spruce 

 plantations in several places. The white inflated peridia, ari-anged 

 in two longitudinal rows, one on each side of the mid-rib, on the 

 underside of the leaves, render the jecidium very conspicuous. This 

 pamsite was evidently introduced into Britain only a few years ago, 

 and since neither the Spruce nor the Rhododendron can be suppressed 

 it is not easy to see how to prevent its spreading. It is very common in 

 Switzerland wherever the Alpine Roses and the Spruce occur together. 



Stemphylifm macrospoeotdeum (Berk.) Sacc. Mycelium 

 creeping, very slender, colourless. Conidia on short erect colourless 

 pedicels, at first 1 -celled and colourless, then 2- or 3-celled, pale 

 brownish, afterwards brown and 4-celled, roundish, 16-20 fx diam., 

 the cells cruciately arranged, finall}^ possessing 5, 6 or more cells and 

 becoming rather irregular. 



On a plaster-of- Paris disc, on which SaccJiaromi/ces had been grdwn 

 for sporulation, W. J. Hodi/etts. 



The Stemphijlium grew among the Saccharowyces probably by aid 

 of the small amount of nutrient fluid which had been placed upon the 



disc with the Yeast. When the spores 



reached the 4-celled stage, the cells were 



at first cruciately arranged, exactly like 



the tetraspores of Gracilaria, but soon 



they became slightly altered in pose and 



assumed a perfect tetrahedral grouping 



, ,. ... as at ff : most of the spores were in this 



Spores X 500. state, but a tew produced one or more 



additional septa, so as to ^present a certain 



resemblance to a Mulberry, as Berkeley noted. 



This very uncommon fungus was so badly figured by Cooke in the 

 ** Handbook " {Epochnium macrosporoidium, fig. 293) that it is 

 thought advisable to give accurate figures of the spores here. 



Aspergillus prMiaATUS Fres. Specimens of this fungus, which 

 causes disease in human beings, have been sent to me by Mr. J. W. H. 

 Johnson from Yorkshire, where it has occurred in connection with the 

 water-supply^ of the rivers. 



Ztqodesmus fulyus Sacc. In Journ. Bot. 1912, p. 17, I recorded 

 this species, with doubt, from Yorkshire. The doubt was founded 

 on two facts, (1)1 could find no clamp-connections, (2) the conidia 

 seemed to be always terminal and frequently in fours ; the colour also 

 was rather pale ochraceous than goldcn-tawny, but that might be due 

 to fading. Since then I have received from Dr. J. S. Ikyliss Elliott 

 a beautiful specimen (from Lyndhurst. Hants) exactly agreeing with 

 Saccardo's description, and undoubtedly the true species; it has 

 abundant clamp-connections and the spores appear to be mostly 

 lateral. It presents, however, one peculiar feature — the hyphse are in 

 manv cases tjlued together in fascicles of about 3-6 after the stvle of 

 Core in noil. 



