42 Dansk Botanisk Arkiv, Bd. 2, Nr. 7. 



Cystidia on edge of gills numerous, about 10 — 11 u broad, often 

 somewhat muriculate. 



Fig. specim.: A: Killerup, gregarious in moist wood of Fagus, 

 amongst Juncus bufonius etc., July 1905. B: Fruens Bøge, drive 

 in foliaceous wood, Aug. 1907. 



Cap 1 — 1 1 / 2 cm, at first conic-convex, then expanded with 

 minute umbo, brown, central part set with minute recurved 

 squamules. Stem even, slender (2 — 3 cm x l 1 /^ mm), Naucoria- 

 like, slightly hollow, especially above with minute white squamules, 

 brown. Gills free, broad (2 3 mm), rather distant and at last 

 rather thick. Flesh of stem brown. — B is a little larger, darker 

 and more densely white-flocculose. 



In the diagnosis of /. calospora (Fungi Tridentini I) the spores 

 are said to be globose, and for this reason I formerly dared not 

 refer my plant to this species. But authentic specimens from 

 Bresadola, which I have had the opportunity to examine, have 

 spores exactly like mine. Massees figure of the spore of /. calo- 

 spora (Monograph, tab. 32 fig. 12) is exaggerated and misleading, 

 showing an enormous globose spore, about 20 u diameter, with 

 coarse, about 3 u. broad papillæ. The spores are really more 

 like his figure of /. Gaillardii, only the aculei are shorter and 

 blunter. — These two species appear to be very closely allied. 

 My first find (A) is more like I. Gaillardii in size etc. 



/. echinospora Egeland (Nyt Magazin f. Naturvidenskaberne, 

 Vol. 51 1 1912) is identical. Also /. lanuginosa (sensu Schroet.) 

 seems to belong here. 



B. ASTROSPORINÆ. 



a. MURICULATÆ. 

 35. I. asterospora Quel. 



Spores 9 — 12 x T 1 /^ — 9 u, stellate (with 5—8 strongly prominent 

 obtusely conical projections). Cystidia ventricose-bottleshaped, 

 muriculate. — The velvet pruina on the stem consists of similar 

 cystidia (1916). 



Fig. specim.: Hjallese, mixed foliaceous wood, Sept. 1896. — 

 Rather common. 



This characteristic species is well distinguished by the strongly 

 rimose, dark brown cap, and the velvety-pruinate, marginately bul- 

 bous stem, which soon turns brown all over (except the bulb). 



36 a. I. prætervisa Quel. 



Spores 10— 12x7— 9 (i, somewhat irregularly substellate (with 

 5 — 8 coarse, obtuse warts). Cystidia 12 — 14 |u broad, fusoid- 

 cylindric, apex muriculate. 



Fig. specim. : Hjallese, copsewood, Sept. 1890. — Not uncommon, 

 in foliaceous woods; also met with in wood of Pinus (Aarup 1916). 



