128 
disease of Willows. The spores are fusiform, 2-celled, colour 
. . . ) y 
less, 12 x 4'5, borne on branching conidiophores. 
On Salzx, Connemara. Tom. cit. p. 158. 
Hypoderma Desmaziert Duby Hyst. p. 42, tab. 11, fig. 22, 
Ascophores black, shining, scattered, on both sides of the 
leaves, innate, ovately convex, thinly covered by the epidermis 
longitudinally striate, lips closed; asci broadly clavate, sessile, 
paraphysate, 8-spored ; spores oblong or clavate-oblong, colour. 
less, continuous, 15-22 x 2-3, rather narrower and more acute 
below. 
On Pine leaves, Crediton, Devonshire, April 1905. A.LS. 
Discula Fagi Oud. Contr. Mycol. XIII. p. 53. 
Perithecia imperfect, seated between the periderm and the 
cortical parenchyma; spores ovate, oblong ovate, or pynform, 
oblong or acute at the ends, sometimes 2-guttulate 8-14 x 3-4p. 
On branches of Beech. Found on dying beech seedlings in 
Yorkshire by Mr. W. A. Thwaites, of Masham. Naturalist 1905 
p. 180. 
Pleurotus decorus Fr. Hym. Eur. p. 108, Fr. Syst. Myc. L p. 
108; Fr. Mon. p. 144; Fr. Ic. p. 60, t. 60 f1 and see pl. 10 
hereof. 
Pileus fleshy, brittle, convex then expanded or depressed, 
5-12 cm. broad, often excentric, yellow, covered with linear 
bistre fibrils that become black with age. Stem 0-10 cm. long 
ye 5-2) em: thick: stuffed then hollow, often twisted and 
covered with fibrils that blacken with age Flesh thin, pale 
yellow. Gills adnate or sinuato-adnate, from 5-i0 mm. broad, 
golden yellow, crowded, often separating from the pileus with 
age, edge uneven. Taste bitter. Spores elliptical 6 x 4-51, 
white, smooth with a large orbicular gutta. 
Amongst heather on a rotten stock, in a fir plantation 700 feet 
above sea level, near Drumnadrochit, Inverness, 20th September, 
1905, Mr. Angus Grant. 
Easily distinguished from its allies by the bistre fibrils on the 
yellow pileus and stem becoming black with age and the golden 
colour of the gills.* 
Inocybe rhodiola (Bres.) Mass. Monograph of the genus 
Inocybe, Annals of Botany, 1904, p. 486; Bres. Fung. Trd, 
p. 80, tab. 87 (forma gracilis); Jno. frumentacea Bres. 
Fung. Trid. p. 88, t. 200 (forma typica); 70. jurana Pat. 
Tab. Anal., no. 551 (fide Bres.). 
* This determination was kindly confirmed by Dr. C. B. Plowright, who 
had seen this species in Sweden. 
