NEW AND CRITICAL BRITISH FUNGI 

 FOUND IN WEST YORKSHIRE. 



CHAS. CROSSLAND, F.L.S., 

 Halifax. 



This paper embraces ten species ; three new to science, with 

 plate ; six new to Britain, accompanied by additional notes ; 

 and one critical species, Barlcea Persoonii (Crouan) is discussed. 

 Of the three new species Lactarius glaucescens is a well-marked 

 member of the Lactarius group. I take the opportunity of 

 dedicating- a new Thielavia to the late Mr. H. T. Soppitt, its 

 discoverer ; an ardent and painstaking - mycologist, also an 

 original investigator into some of the problems connected with 

 the Uredinacese. 



It may be explained that the total length of the ascus is given. 

 Some authors give the length of the 'spore-bearing portion,' 

 which appears to be a rather unsatisfactory method, as the 

 spores take up varying space, and occupy different altitudes in 

 the ascus according to the ag'e and development of both. 

 Lactarius glaucescens sp. nov. Lac acre, ex alba' glaucescens. 



Pileus carnosus, rigidus, 4-6 cm. latus, convexo umbilicato- 

 depressus, levis, giaber, siccus, azonus, albidus vel cremoricolor, 

 maculas parvas ochraceo-albus ornatus, margine involuto, 

 exstriio ; caro albida, compacta, circa 8 mm. crassa, ad margine 

 2 mm. crassa ; lamellae adfixai, confertaj, 18-20 in 1 cm. hie 

 inde furcatae, angiistae, 1*5 mm. lata*, pileo concolor^; stipes 

 2*5-3 cm * long", x r '25 cm. crass, solidus, sursum incrassatus, 

 lex is, compactus, pileo concolor ; sporae hyalina-, giobosae, 

 minutissiirie echinulatae, 6-7 // diam. ; cystidia cylindrica vel 

 subclavata, intus granulosa, 50-60 x 7-8 \>. ; lac eppiosum, 

 acrum, ex albo glaucescens. 



Hab. Wade Wood, Luddenden-dean, near Halifax, August 

 1899. Coll. James Needham. 



Distinguished more especially by the white, at length 

 glaucous-green, colour of the milk, and the very narrow, 

 densely-crowded gills. The fresh-cut surface of the stem and 

 pileus is immediately suffused with milk, which is so copious 

 and cohesive that the two halves of the sporophore will cohere 

 firmly together if replaced. The drying of the coagulated milk 

 on the cut surface imparts to the pale cream-coloured flesh 

 a glaucous appearance. Soon after being placed in a 4-5 per 

 ic)oo January 



