Yorkshire Naturalists at Dent. 279 



Cystopus candidus Lev. on cultivated Arabis 

 *Plasmopora nivea Schrot. on Aegopodiuni Podagraria 



Peronospora Schleideni Unger. on Allium ursin-uni 

 *P. Violae deBary on Viola Riviniana 

 *P. alta Fckl. on Plantago lanceolata 



Nectria cinnabarina (Tode) Fr. Chlorosplenium aeruginosum 



Leptospora ovina (Pars.) Fckl. (Oeder.) De Not. 



*Melanconis stilbostomaTul. Dasycypha virginea (Batsch) Fckl. 



Psilosphaeria spermoides Cke. Hyaloscypha hyalina (Pers.) Boud. 



*Wallrothiella minima (Fckl.) SdiCC. Mollisia cinerea (Batsch) Karst. 



*Diatype bull(\t2 (Hoffm.)Fr. Trochila laurocerasi (Desm.) Fr. 



Hypoxylon fuscum (Pers.)Fr. Stegia ilicis ¥r .^ 



Xylaria hypoxylon {I^inn.) Gvev. ' Rhyiisma acerinum (Pers.) Fr. 



Phyllachora graminis (Pers.) Fckl . *Septona Hederae Desm. 



P.junci (Fr.) Fckl. *Phoma conigenum Karst. 



Rhopogr aphus Pieridis {Sovf. {Wint. P. samararmn (Desm.) Sacc. 



Mitrophora semilibeva Lev. Oidiuni moniloides Link. 



Ciliaria scutellata (Linn.) Quel. *0. alphitoides Griff. & Maulb. 



Coprobia granulaia (Bull.) Fr. Botrytis vulgaris Fr. 

 *Penicilliuni expansum (Link.) Thorn. 



Vertebrate Zoology. — The President (Mr. H. B. Booth) reports 

 that the ornithologists had a good time. Sevreal species which occur 

 commonly in the neighbouring dales were often rare or even absent. 

 For instance, the Wlieatear, Ring Ouzel and Snipe were very sparsely 

 distributed, although many miles of apparently suitable ground were 

 traversed . 



On Whernside a few Dunlins were seen, and the Curlew and Golden 

 Plover were fairly common ; young of both species, and one Snipe's 

 nest with young were noted. A nest of Golden Plover, in which the four 

 nestlings had not left the nest came in for a great deal of admiration and 

 comment. An addition was made to the list of breeding stations of the 

 Black -headed Gull in Yorkshire, as published in The Naturalist for May, 

 viz., on a pond on Greensett Moss, Whernside. 1 estimated that there 

 woxild be about 80 pairs present, and about 50 nests already. Many of 

 the latter were being built, or contained one or two eggs, while a few nests 

 had three eggs in. The gamekeeper afterwards informed me that they 

 had been there for about seven years to his own knowledge, and that they 

 had been increasing in numbers since he iirst saw them. He also stated 

 that ten or twelve pairs nested on a pond near his house at Gearstones, 

 about 2\ miles away from the Greensett gullery. 



In the valley Whinchats were numerous, and Redstarts, Common 

 Wliitethroats and Garden Warblers were fairly common. The Wood 

 Warbler was heard in two different places, and the Corncrake was doing 

 ' his bit.' The Pied, Yellow and Grey Wagtails were sparsely distributed, 

 and the entire Bunting family was absent. In the Corvidae, Magpies 

 were common, an occasional Raven was seen crossing well overhead, 

 and there was a fair-sized rookery in the grounds of Gate House. 

 Carrion Crows and Jackdaws, however, appeared to be much less common 

 than in the adjoining dales. On Sunday (May 14th) the ornithologists 

 visited an eyrie of the Peregrine Falcon which for several years has been 

 under the protection of the Yorkshire Naturalists' Union Wild Birds and 

 Eggs Protection Acts Committee. From an adjoining cliff they had an 

 excellent view, and found two young chicks, in the white down, had just 

 hatched, and one of the two remaining eggs was ' chipped.' 



The only other bird of prey noticed was the Sparrow Hawk; 



A dead Common Shrew was picked up at the bottom of Great Blake 

 Chyll (about 900 ft.), and on each side of Whernside molehills ascended 

 to about 1,700 feet. At this elevation they became smaller and much 



1921 Aug. 1 



