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Page number:241 
Remarks (internal):Fries originally described this species as a form of Agaricus junceus with cuspidate pileus. The type-plate is very characteristic for what we now call Entoloma cuspidiferum. Although Fries diagnosis is very short, it is considered to be valid, and therefore I also consider the name Rhodophyllus cuspidifer Kühn. & Romagn. as being described validly according to the Code of Botanical Literature. Entoloma cuspidiferum is a very striking species, that frequently grows in peat-bogs. It can be easily identified by its acutely conical pileus, distinctly pruinose stipe-apex and raphanoid smell.
 
Description type:Non-original description 
Description:Entoloma cuspidiferum (Kahn. & Romagn.) Noordel. (tav. 35a, fig. 106)
Rhodophyllus cuspidifer Kühn.& Romagn., Fl. anal.: 189. 1953 Nolanea cupidifer (Kühn.& Romagn.) Orton in Trans. Br. mycol. Soc. 43: 179. 1960; Entoloma cupidifer (Kühn.& Romagn) Noordel. in Persoonia 10: 461. 1980; Entoloma cuspidiferum (Kühn.& Romagn.) Noordel. in Persoonia 11: 257. 1981.
Sin.: Agaricus junceus forma cuspidata Fr., Ic. sel. Hymenomyc. 1, pl. 99, fig. 2. 1867; Rhodophyllus cuspidatus (Fr.) Favre, Assoc. fong. Hauts Marais: 44. 1948 non Rhodophyllus cuspidatus Pat. 1924 nec. Entoloma cuspidatus (Peck) Sacc. 1887.
Bibl.: Einhellinger in Ber. Bayer. hot. Ges. 47: 125, fig. 4. 1976; Favre, Assoc. fong. Hauts Marais: 44. 1948; Noordeloos in Persoonia 10: 461-463, fig. 13. 1980; Noordeloos in Persoonia 11: 257. 1980; Noordeloos in Bas & al., Fl. agar. neerl., vol. 1: 124-125, fig. 99. 1987.
Tipizzazione - Holotypus: non indicato; località di raccolta del tipo: Femsjö, Svezia.
Pileus 15-40 mm broad, up to 25 mm high, acutely concal or conico-campanulate only slightly expanding to campanulate or convex with conical papilla, with inflexed then deflexed or straight margin, strongly hygrophanous, when moist translucently striate up to half the radius, grey-brown or sepia, only slightly paler at margin, pallescent on drying to very pale brown, innately radially fibrillose becoming strongly silvery-fibrillose on drying. Lamellae, L = 25-35, l = 1-5, almost free or narrowly vertricose, up to 10 mm broad, grey then grey-pink, finally brown-pink, with concolorous, entire or eroded edge. Stipe 40-90 x 2-5 mm, cylindrical, straight, yellow-brown, distinctly paler than pileus, downy pruinose in upper 15-20 mm, downwards fibrillose-striate with silvery fibrils, base white tomentose. Context relatively firm in pileus and concolorous with surface, fibrous and slightly paler in stipe. Smell raphanoid. Taste rancid- raphanoid.
Spores: 10.0-13.0 x 9.5-11.0 µm, Q= 1.0-1.4, 5-6 angled in side-view. Basidia 4-spored, clamped. Lamella edge fertile or heterogeneous. Cheilocystidia absent or rare, scattered among basidia, 40-60 x 12-18 µm, lecithiform or narrowly utriform. Pileipellis a cutis of 2,5­-10(-14) µm wide hyphae, subpellis well-developed, made up of short, inflated elements. Pigment minutely encrusting in pileipellis, in addition pale intracellular in deeper layers of pileus. Stipitepellis with capitate caulocystidia. Clamps abundant in all tissues studied.
Habitat: Solitary or in small groups in marshes, growing among grass and mosses, in peat­bogs among Sphagnum, as well as on peaty soil etc., from the lowlands up into the subalpine zone; summer-autumn.
Distribution: Wide-spread in Europe, but rare.


 
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