184 
Yorkshire Naturalists at Dent. 
Bryology (F. E. Milsom) : — The dry conditions were disadvantageous 
for bryology in the open ground, and most .work was done in the ghylls. 
In all, 92 species of mosses and 37 species of hepatics were noted, 
indicative of the richness of the district, which will repay further study. 
Unsuccessful search was made for Habrodon Notavisii on the various 
ash trees along the river bank. 
Hacker Ghyll Wood, Scotcher Ghyll, and Helmside Ghyll were studied 
intensively, and Coombe Scar was also visited. In Hacker Ghyll Wood 
the best find was Fissidens rufulus, and in Scotcher Ghyll Seligeria 
acutifolia var. longiseta, Heterocladium heteropterum var. fallax, and 
Nowellia curvi folia . In Helmside Ghyll it was gratifying to see Eurynchium 
Teesdalei in splendid condition with fruit, while at Coombe Scar Bartramia 
Halleriana and Hypnum sarvnentosum were gathered. 
During the week-end a vist was paid to Frostrow Fell, Sedbergh, 
where the hepatii Anastrepta orcadensis was found to be in flourishing 
condition in its only recorded station in V.C. 65. 
The following is a list of the most noteworthy species gathered : — 
Mosses. 
Polytrichum strictum Banks. 
Seligeria acutifolia Lindb. 
var. longiseta Lindb. 
S. recurvata B. & S. 
Fissidens rufulus B. & S. 
Tor tula intermedia Berk. 
Weisia rupestris C.M. 
W . curvirostris C.M. 
Bartramia Halleriana Hedw. 
Mnium serratum Schrad. 
1 Heterocladium heteropterum B. & S. 
var. fallax Milde. 
Eurynchium crassinervium B. & S. 
E. Teesdalei Schp. 
Plagrothecium depressum Dixon. 
Hypuum sarmentosum Wahl. 
Hepatics. 
Preissia quadrata (Scop.) Nees. 
Metzgeria pubescens (Schrank.) Raddi. 
Aplozia cordifolia (Hook) Dum. 
Lophozia incisa (Schrad.) Dum. 
^Nowellia curvifolia (Dicks.) Mitt. 
Calypogeia arguta Ness et Mont. 
Blephorostoma trichophyllum (L.) Dum. 
Cololejeunea Rossettiana (Massat) Schiffn. 
Lejeunea patens Lindb. 
Microlejeunea ulicina (Tayl.) Evans. 
Fungi (F. A. Mason) : — One of the most noticeable features in the 
hedgerows of the district was the wide-spread occurrence of the diseased 
fruits of the Bird-Cherry, due to Taphrina Pruni (Fuckel) Tul., which 
causes a deformation known as ‘ pocket -plums ’ or ‘ bladder -plums.’ 
A number of other fungous galls, all caused by Uredines, were the 
following : Puccinia Caricis , distorting the leaves and more commonly 
the petioles of Nettle ; P. Pringsheimiana, on Gooseberry ; the aecidial 
form of Gymno sporangium clavariaeforme on both the leaves and fruits of 
the Hawthorn; Phragmidium subcorticium on Wild Rose; and 
Triphragmium U Imareae . 
1 New to V.C. 65. 
The Naturalist 
