ADDENDA. 493 



branclied specimen of Clavaria nigosa in size and form, 

 according to Britzelmeyer's fig. ; according to the author, the 

 j)resent species resembles Clavaria Kromhhohii. 

 (To follow G. Krombholzii, vol. i. p. 78.) 



Clavaria flava. Schaeff, 



Fragile ; trunk up to 1 in. long, and as much thick, white, 

 becoming broken up into numerous terete, even-topped, 

 crowded, obtuse, bright lemon-yellow branches ; spores 

 elliptical, -white with a tinge of yellow, 9—10 X 4r-5 /j.. 



Clavaria flava, Schaeffer, t. 175. 



Somewhat resembling a pollard willow in miniature, 

 hence the German name " pollard fungus." Allied to 

 C. aurea, but distinct in its fragility, clear lemon-yellow 

 branches and white spores. 



(Should stand first in the genus Clavaria, vol. i. p. 75.) 



Hydrnim plumosum. Duby. 



Entirely resupinate, snow-white, tomentose, subiculum 

 very delicate ; spines usually crowded, 2 mm. or more long, 

 slender, minutely feathered near the apex ; spores globose, 

 4^5 /x diameter. 



Hydnum plumosum, Duby. Bot. Gall., ii. p. 778 ; Berk., 

 Outl., p. 261. 



On dead wood, bark, &c. 



Distinguished from allies by the feathered spines. 



(Should follow H. Stevensoni, vol. i. p. 164.) 



Hydnrmi (Mesopus) molle. Fries, Vet. Akad. 

 Fork, 1851, p. 5S ; Fries, Icon., t. 2, f. 1. 



PUeus 3—4 in. across, flesh thick, white, soft ; convex then 

 umbilicate or irregularly depressed, often wavy, covered 

 with a dense coat of velvety down, white ; stem 1-1 J in. 

 long, up to f in. thick, about equal, glabrous, white, solid ; 

 spines crowded, uniform, acuminate, about J in. long, white, 

 unchangeable, slightly decurrent on the stem ; spores globose 

 with a basal apiculus, smooth, 7 /x diameter. 



On the ground, Netherton, Meigle, N.B. (Mrs. Farqu- 

 harson). 



Somewhat resembling H. repandum in habit, but quite 

 distinct in the pure white, densely velvety pileus ; white, 

 equal subulate spines that do not become at all discoloured. 



