LEUCOSPORI. Ill 



colour when moist, whitish when dry, slightly fleshy, convex then Collybia. 

 flattened, obtuse or at length gibbous ; margin at first involute, at 

 length flattened and slightly striate. Stem 5-10 cent. (2-4 in.) 

 long, 2-4 mm. (1-2 lin.) thick, remarkably fistulose, rigid-fragile, 

 slightly attenuated upwards, rarely compressed, very smooth with 

 exception of the base, even, rufous, sometimes brown ; tube of the 

 stem internally smooth. Gills at first adnexed, soon free, very 

 crowded, linear, narrow, plane, flesh-colour then whitish. 



Ccespitoso-fasciculate ; stems crowded, very numerous, united and white- 

 tomentose at the base. Nearest to A. confluens in affinity, but a wholly dis- 

 tinguished species. At first sight like Marasmius erythropus, but the stem is 

 wholly smooth. 



In woods, among fir. Frequent. Autumn. 



Resembling A. dryophilus. In the British plant the inner walls of the fistu- 

 lose stem are strigose. M.J.B. Spores ellipsoid, 6x3 mk. K. ; 4-6 x 2-4 mk. 

 B. Name acervus, a heap. From the habit of growth. Fr. Monogr. i. /. 

 160. Hym. Eur. p. 122. Icon. t. 64. /. 2. Berk. Out. p. 119. C. Hbk. n. 

 152. I II list. PL 267. S. My col. Scot. n. 128. 



227. A. dryophilus Bull. Pileus bay-brown-rufous, &c., be- 

 coming pale, but not hygrophanous, slightly fleshy, tough, convexo- 

 plane, obtuse, commonly depressed in the centre, even, smooth ; 

 margin at first inflexed then flattened ; flesh thin, white. Stem 

 cartilaginous, remarkably fistulose, thin, even, smooth, somewhat 

 rooting, commonly becoming yellow or rufescent. Gills somewhat 

 free, with a small decurrent tooth, but appearing adnexed when 

 the pileus is depressed, crowded, narrow, distinct, plane, white or 

 becoming pale. 



The above description contains the points in which very different forms 

 agree. Pileus bay-rufous, becoming yellow, clay-colour ; in drier pine woods 

 in the beginning of summer there is a common form with the pileus and gills 

 white and stem yellow. The gills vary sulphur-yellow, sometimes (in a diseased 

 state) tan-cinnamon. Solitary or laxly gregarious, inodorous. There are 

 numerous monstrous forms which are very deceiving (compare Fl. Dan. t. 

 2019. /. i, 2). A. stem elongated, flexuous, decumbent, inflated at the base; 

 pileus broader, lobed ; gills white. B. funicularis, larger, casspitose, the lax 

 and decumbent stem equal and villous at the base, gills sulphur-yellow. These 

 forms, analogous with A. repensBull., occur on heaps of leaves. C. countless 

 specimens growing together in a large cluster; steins thick, inflated, irregularly 

 shaped, sulcate, brown, the mycelium collecting the soil in the form of a ball ; 

 pilei very irregularly shaped, full of angles, undulated, blackish then bay- 

 brown. In gardens. 



In woods, among leaves, c. Common. Spring-Autumn. 



Pileus commonly 2.5-7.5 cent - ( J -3 in -) broad - Stem 5-7.5 cent. (2-3 in.) 

 long, 6 mm. (% in.) thick. Badham refers to a case in which illness was 

 caused by eating it. Spores 6 mk. W.G.S. Name Spv?, oak ; <iA.o?, loving. 

 Bull. t. 434. Fr. Monogr. p. 162. Hym. E^lr. p. 122., Berk. Out. p. 119. 

 C. Hbk. n. 155. Illust. PL 204. S. Mycol. Scot. n. 129. Sow. t. 127. 

 Hussey i. /. 39. Badh. i. t. 8. /. 2, ii. t. j.f. $.Scha>ff. t. 45. 



