136 AGARICINI. 



Canthar- Name cupa, a cup. Shaped like a little cup, Fr. Monogr. ii. p. 209. 



ellus. Hym. Eur. p. 458. Merulius Pers. Syn. t. 5. /. 2. Ag. helvelloides Bull. I. 



601. /. 3. Berk. Out. p. 132. C. Hbk. n. 226. 



13. C. Stevenson! B. & Br. Pileus about 4mm. (2 lin.) broad, 

 pallid, orbicular, umbilicate, smooth, margin inflexed. Stem 

 6 mm. (% in.) long, i m. (/4 lin.) thick, cylindrical, delicately 

 pulverulent, white then darker. Gills decurrent, pallid, becom- 

 ing fuscous in front. 



Stem with a little white mycelium at the base. Very near to C. cupulatus ; 

 but that is very strongly umbonate when young, and the umbo is always 

 visible at the bottom of the umbilicus ; the habit, moreover, is different. 



On rotten stump among moss. Glamis, 1874. March, April. 



Name after Rev. John Stevenson. B. 6 Br. n. 1422. S. Mycol. Scot, 

 n. 619. 



II. MERISMA. 

 No British species. 



III. PLEUROPUS. 



14. C. muscigenus Fr. Pileus fuscous when moist, cinereous- 

 whitish when dry, somewhat zoned, membranaceous, tough, 

 spathulate, smooth, rather plane, slightly undulated when full 

 grown. Stem short, 2-4 mm. (1-2 lin.), round, exactly lateral, 

 villaus at the base, horizontal as well as the pileus with which it 

 is continuous. Gills slightly swollen, diverging from the apex 

 of the stem, distant, branched, not anastomosing, of the same 

 colour as the pileus. 



The whole plant from the base of the stem to the apex of the pileus scarcely 

 reaching 2.5 cent, (i in.), commonly smaller. 



On mosses. Uncommon. June. 



Name muscus, moss ; gigno, to bear. Growing on mosses. Fr. Monogr. 

 ii. p. 210. Hym. Eur. p. 460. Berk. Out. p. 217. C. Hbk. n. 649. S. 

 Mycol. Scot. n. 620. Ag. Bull. t. 288, 498. / 2. Merulius Nets Syst.f. 236. 



IV. RESUPINATI. 

 * Bryophili (moss-loving). 



15. C. retirugus Fr. Pileus 6-10 mm. (3-5 lin.) broad, whitish- 

 cinereous above, darker, cinereous-fuliginous, beneath, membran- 

 aceous, expanded, repando-lobed, very tender, somewhat round, 

 at first entire at the margin then variously split. Gills radiating 

 from the centre, very tender, reticulated. 



