Rev. M. J. Berkeley and Mr. C. E. Broome on British Fungi. 463 



meter. This is all that is figured by Preuss as quoted above, 

 but we have seen the heads studded with oblong erect spores 

 •0004— •0006 inch long, with their endochrome bipartite or very 

 rarely quadripartite ; and if these are truly spores, each individual 

 head presents nearly the structure of an Epicoccum. In one 

 instance a spore was observed germinating from the apex. 



762. Oidium Favoinim, n. s. Floccis erectis septatis, sporis 

 flavis brevibus subcylindricis. On honey-comb, near Woolwich, 

 Mrs. Col. Jones. 



Flocci erect, white, septate and slightly torulose below, above 

 bearing a few short cylindrical yellow spores. These spores when 

 fallen seem to acquire a septum and then to be gradually 

 attenuated at either end. A new septum is then formed in either 

 division, the whole constituting an irregularly fusiform body. 



Plate XVI. fig. 14. Threads and spores magnified. 



763. O. Balsamii, Mont. MSS. Candida, articuhs dolii- 

 formibus utrinque angustatis. On the leaves of Verbascum nigrum^ 

 Wothorpe, Aug. 23, 1853. 



This species was sent from Milan by Balsamo to Dr. Mon- 

 tague, under the name of Oidium Tuckeri, but it is a very different 

 species, distinguished by the very peculiar shape of its spores. 

 Their length is about 'OOIS. Balsamo^s plant grew on Verbas- 

 cum montanum. No Erysiphe has at present been observed in 

 connection with this species. The same species occurs on straw- 

 berries, to which it is very destructive. See Gard. Chron. April 15, 

 1854. 



764. Helvetia sulcata, Afz. On the ground in woods, sent 

 from Andover, 1853. 



We have seen a single specimen only of this plant, which 

 seems to be certainly the species of Afzelius, and is remarkable 

 for the regular ribs of the stem and the campanulate pileus. 



765. Geoglossum olivaceum, V . Leigh Down, Bathford Down 

 and other places near Bath, C. E. Broome, Oct. 1853. 



This very rare species seems to be undoubtedly distinct from 

 G. viride. Sporidia '0006 inch long. 



766. Peziza sepulta, Ft. MSS. On the ground. East Bergholt, 

 Nov. 4, 1851. 



One to two inches across, globose, clothed with dense woolly 

 fibres, the upper portion often breaking off irregularly and so 

 exposing the disc. Asci cylindrical ; sporidia elliptic, with one, 

 two or sometimes several nuclei '0009 by -0004 inch long. 



This is very closely allied to Fez. arenaria, Osbeck, and P. are- 

 nicola, Lev. It bears also a close resemblance to the genus 

 Hydrocystis, Tul. 



767. Peziza (Geopyxis) Comubiensis, n. s. Media sessilis 



