Hebeloma angustifolium - A non-current Hebeloma species

According to our data Hebeloma angustifolium is not the name of a current valid species of Hebeloma. Our database has records for the following similar names

Full name: Hebeloma angustifolium (Britzelm.) Sacc. (1895)
Published: Syll. Fung. 11 (1-7): 55 (1895)
Taxonomic status: We have not been able to unambiguously determine the current genus of this name.
Basionym: Agaricus angustifolius Britzelm. (1894)

Types: Not designated. Described from Germany, Bavaria, Augsburg, Siebentischwald, autumn.

Original diagnosis: A. (Heb,) angustifolius B. f. 406; Spst. gelblich fleischfarben, gelblich rotbraun; Sp. 8, 10: 4, 5, gelb; L. s. g., s. schmal, gelbrötlich, gelblich lila, stets mit einem Stich ins Purpurfarbige; H. gelblich fleischfarben, isabellfarben, R. heller; St. von der Farbe des H., doch unt. braun; Fl. ohne besonderen Geruch und Geschmack, weisslich, unt. im St. braun; gesellschaftlich wachsend; dem A. crustuliniformis v.; Herbst, Wälder des Ostrachthales.

English translation: A. (Heb,) angustifolius B. f. 406; Spore print yellowish flesh-coloured, yellowish red-brown; spores 8–10 × 4–5 μm; lamellae very crowded, very narrow, yellow-reddish, yellow-lilaceous, always with a purplish tinge; pileus yellowish flesh-coloured, Isabella-coloured with paler margin; stipe concolourous with pileus, but brown in lower part; context without particular odour or taste, whitish, brown in lower part of stipe; in groups, close to A. crustuliniformis. Autumn. In the forests of Ostrachtal.

Commentary: Judging from the plate (fig. 406) and the description, this had very crowded lamellae, the spores were very small, and a pileus colour unlike that of a Hebeloma; this is evidently not a Hebeloma.

Full name: Hebeloma angustifolium Romagn. (1983)
Published: Sydowia 36: 258 (1947) ["1983"]
Taxonomic status: Heterotypic synonym of H. velutipes
Notes: Nom. illegit. (Art. 53.1 - Melbourne), non Hebeloma angustifolium (Britzelm.) Sacc., Syll. Fung. 11: 55 (1895), nec. Hebeloma angustifolium A.H. Sm., V.S. Evenson & Mitchel, Veiled Sp. W. U. S.: 164 (1983). Replaced by the homotypic synonym: Hebeloma tenuifolium Romagn., Doc. Mycol. 15: 53 (1985)

Types: FRANCE: Oise, Foret de la Haute Pommeraie near Apremont (approx. 49.23°N, 2.48°E, alt. approx. 100 m a.s.l.) on acidic soil in deciduous woodland under Carpinus sp., Fagus sp., Quercus sp. and Tilia cordata, 13 Aug. 1965, H. Romagnesi (65.83) (Holotype. herbarium acc. no. PC0096752, HJB1000143).

Homotypic synonym of: Hebeloma tenuifolium Romagn. (1985)

Original diagnosis: Pileo 2.5-4.5 cm, mox applanato, obtuso, pallido, rufulo, paulo in media saturatiore, viscoso. Stipite 30-60 x 4-7(-10) mm, bulbo immarginato, albo, paulum imo brunnescente, primum toto farinoso. Carne alba, vix in caverna stipitis brunnesccnte, odore raphanoideo, sapore amaro. Lamellis primum stipatis, angustissimis (2-4 mm), linearibus, pallide argilaceis, acic alba punctata atque lacrymante. – Sporis 8.5-10-(11.5) x (4.7-)5-5.7(-7.5) μm, pallidis, amygdaliformibus, haud papillatis, levibus vel subtiliter punctatis. Basidiis 32 x 10.5 μm. Pilis marginalibus claviformibus, 37-67 x 6-9 μm in parte superiore. Epicute gelata, hyphis filiformibus (2-3.7 μm), subcute pseudoparenchymatica. Pigmento membranari pallidissimo. Fibulis praesentibus. - In silva frondosa vel inter acus Piceae.

English translation: Pileus 2.5–4.5 cm, soon flattened, blunt, pale, reddish, slightly more saturated at centre, viscid. Stipe 30-60 × 4–7(–10) mm, with non-marginate bulb, white, becomes brown in lower part, entirely pruinose all over at first. Context white, hardly becoming brown in inner part; odour raphanoid; taste bitter. Lamellae crowded, at least in the beginning, very narrow (2–4 mm), linear, pale clay-coloured with white punctate and shedding tears. Spores 8.5–10 (–11.5) × (4.7–) 5–7 (–7.5) μm, pale, amygdaloid, not papillate, slightly or delicately punctate. Basidia 32 × 10.5 μm. Marginal hairs claviform, 37–67 × 6–9 μm, in upper part. Epicutis gelatinous made up of filiform hyphae (2–3.7 μm), subcutis pseudoparenchymatical. Pigment membranous, very pale. Clamps present. In deciduous forest and among needles of Picea.

Commentary: Based on morphological analysis and ITS sequence, this is: = Hebeloma velutipes Bruchet

Full name: Hebeloma angustifolium A.H. Sm., V.S. Evenson & Mitchel (1983)
Published: The Veiled Species of Hebeloma in the Western United States: 164 (1983)
Taxonomic status: Heterotypic synonym of H. alpinicola
Notes: Nom. illegit. (Art. 53.1 - Melbourne), non Hebeloma angustifolium (Britzelm.) Sacc., Syll. Fung. 11: 55 (1895); nec. Hebeloma angustifolium Romagn., Sydowia 36: 258 (1983). Replaced by the homotypic synonym: Hebeloma smithii Quadr., Mycotaxon 30: 303 (1987).

Types: UNITED STATES: Michigan: Chelsea, Lyndon Town Hall Park, Washtenaw Co. (approx. 42.38°N, 84.08°W, alt. approx. 300 m a.s.l.), 10 Nov. 1977, A.H. Smith (88295) (Holotype. herbarium acc. no. MICH 10730, HJB1000147).

Homotypic synonym of: Hebeloma smithii Quadr. (1987)

Original diagnosis: Pileus 2.5-4 cm latus, demum campanulatus vel plano-umbonatus, valde viscidus, ad marginem fibrillosus, glabrescens, "CinnamonBrown" ad centrum, sordide cinnamomeus ad marginem. Contextus fragilis, brunneus, odor pungens, gustus tarde subamarus. Lamellae confertae, angustae, adnatae vel demum subsinuatae, griseobrunneae tarde rufobrunneae, ad marginem brunneomaculatae. Stipes 5-10 cm Appendix 165 longus, 2.5-4 mm crassus fragilis, avellaneus, deorsum demum vinaceobrunneus, dissiliens. Spores 8-10 (11) x 5-6 μm, non dextrinoideae, ellipsoideae vel subovoideae, subleves. Cheilocystidia fusoide ventricosa 32-48 (57) x 7-10 x 3.5-5 μm.

English translation: Pileus 2.5-4 cm broad, later campanulate or applanate-umbonate, strongly viscid, fibrillose, tending to become glabrous on the margin, “Cinnamon-Brown” on the disc, dingy cinnamon on the margin. Context fragile, brown, smell pungent, taste slowly becoming almost bitter. Lamellae crowded, narrow, adnate or later subsinuate, greyish-brown, finally reddish-brown, spotted brown on the edge. Stipe 5-10 cm long, 2.5-4 mm thick, brittle, hazel brown, finally vinaceous-brown downwards, splitting. Spores 8-10 (11) x 5-6 μm, indextrinoid, ellipsoid or subovoid, almost smooth. Cheilocystidia fusoid-ventricose, 32-48 (57) x 7-10 x 3.5-5 μm.

Commentary: Based on morphological analysis and ITS sequence, this is: = Hebeloma alpinicola A.H. Sm., V.S. Evenson & Mitchel