Rev. M. J. Berkeley and Mr. C. E. Broome on British Fungi. 101 



the flocci are ruptured, the inner membrane sometimes protrudes, 

 as in the asci of Sjihcerice. 



523. B. Arenariee, Berk, in Journ. Hort. Soc. vol. i. p. 31. 

 On leaves of Arenaria trinervis, King's ClifFe, June. 



524. B. VicicE, Berk. /. c. Extremely common on the leaves 

 of peas and tares. 



525. B. arborescens, Berk. /. c. On Papaver Rhceas; very 

 common. 



526. B. ganglioniformis, Berk. /. c. Bremia lactucte, Reg. Bot. 

 Zeit. 1843, t, 3 B. Botrytis geminata, linger, Bot. Zeit. 1847, 

 tab. 6. fig. 9. Very common on lettuce leaves in spring. 



527. B. macrospora, Unger, Exanth. t. 2. fig. 14. On leaves 

 of parsnips ; very common. Also on Angelica sylvestris and other 

 Umbellifers. The roots of the plants which are infested with 

 this mould are generally diseased, like the tubers of potatoes 

 attacked by Botrytis infestans, 



528. B. grisea = Peronospora grisea, Unger, Bot. Zeit. 1847, 

 p. 315. On leaves of Veronica Beccabunga, Baldovan, May 1846, 

 Gardiner, 



529. B. Tilletei, Desm. Exs. no. 926. Not uncommon on 

 moss and various leaves, as at King's Cliffe. 



One of the most splendid species of the genus, remarkable 

 for its highly branched threads and verticillate ramuli. The 

 colour of the whole plant is pale tawny or fawn. 



530. Menispora lucida, Corda, Ic. Ease. 1. tab. 4. fig. 233. 

 On decayed wood, Lambley, Notts, Jan. 1841. 



531. Verticillium apicale, n. s. Effusum olivaceo-nigrum ; 

 floccis rectis; ramulis apicalibus brevissimis basi incrassatis; 

 sporis globosis. On decorticated oak branches, Wraxall, Som., 

 Feb. 1845. 



Effused, forming small dark thin patches. Flocci erect, rather 

 closely articulate, bearing at the apex a coronet of very short 

 branches which are swollen at the base and strongly attenuated 

 upwards. Spores globose. There is sometimes the rudiment 

 of a lower whorl of branchlets. 



Nearly allied to V. tenuissimum, Corda, but differing in its 

 globose spores and terminal branchlets which are not didymous. 



Plate VII. fig. 17. a. Threads with spores magnified; b. tip of thread 

 with its ramuli and spores highly magnified. 



532. V. nanum, n. s. Minutum album, floccis vage ramosis, 

 ramulis oppositis ; sporis ellipticis. On pears with Cladosporium 

 dendriticum, Wallr., Cranford Bridge, F. J. Graham, Esq. Very 

 minute, white ; flocci loosely branched ; ramuli elongated, oppo- 

 site ; spores elhptic. 



An obscure species, in which the whorl of ramuli is reduced 



