BOTANY 



bury Park, and (Hypholoma) hypoxanthus in Sherrards Park Wood. In 

 1896 a species of the same sub-genus new to Britain Ag. (H.) violaceo- 

 ater was found by the present writer in the Hollows, Gorhambury, and 

 was sent to Mr. Massee for determination. The last Agaricus to be 

 mentioned is Ag. (Psatbyrella) arafus, which was found in 1893 in 

 Sherrards Park Wood, the second British locality. 



Of the rest of the Agaricini we have the following rare species : 

 Cortinarius azureus found in Sherrards Park Wood ; Paxillus Alexandri 

 in Hatfield Park in 1890, being the second British specimen, the first 

 one having been found in Hatfield Park, Essex, in 1888 ; Lactarius 

 cremor in Sherrards Park Wood ; Russula barlce in Ashridge Park ; and 

 Nyctalis cremor in Sherrards Park Wood. Of the rarer Polyporei we 

 found Strobilomyces strobilaceus under an oak tree in Grove Park in 1895, 

 mentioned by Mr. Massee at the time as ' the rarest and most interesting 

 of British fungi,' and Poria sanguinolenta in Cassiobury Park in 1897. 

 And lastly the rarer Clavarieas are represented by C/avaria stricta, found 

 by Mr. Henry Warner in Broxbourne Woods in 1892 after the fungus 

 foray held there. 



2. GASTROMYCETES 



Phallus ... I Bovista . . . i Scleroderma. . 3 Sphzrobolus . i 

 Geaster ... 2 Lycoperdon . . 5 Cyathus i 



The well-known stinkhorn (Phallus impudicus) is of frequent occur- 

 rence, and on one occasion it was recognized by its smell and only found 

 after a vigilant search. A specimen of Geaster fornicatus found near 

 Watford was exhibited at a recent meeting of the Hertfordshire Natural 

 History Society, and several specimens of G. Bryantii were some years 

 ago found by the writer growing on a roadside bank near Bow Bridge, 

 between St. Albans and Redbourn. One was sent to Dr. M. C. Cooke 

 for determination and the others are now in the County Museum at 

 St. Albans. Lycoperdon saccatum and excipuliforme have been found in the 

 wood above Aldbury, and Scleroderma bovista and verrucosum in Digswell 

 Park, the latter species also in Gorhambury Park. 



3. 



Uromyces . . 4 Phragmidium . 5 Melampsora . i Caeoma . . . I 

 Puccinia ... 20 Endophyllum . I Coleosporium . 3 /Ecidium . . I 

 Triphragminium I Gymnosporangium 2 Uredo . . . i 



In several orders of the fungi there are species which are parasitic 

 on the leaves of flowering plants and on the fronds of ferns, but most of 

 the microscopic leaf-fungi and all those which in the most conspicuous 

 stage of their existence are known as ' cluster-cups ' belong to the 

 Uredineas or to the Ustilagineae, which until recently were considered to 

 be families of the Coniomycetes or dust-like fungi, this term appertain- 

 ing to their spores, which are their chief feature. 1 Indeed it is by their 



1 The nomenclature in Plowright's British Uredinea and Ustilaginea is followed in treating of the 

 Uredineae. 



73 



