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Nomenclature

Lactarius hysginus (Fr.: Fr.) Fr.
Epicr. syst. mycol.: 337. 1838.

Agaricus hysginus Fr.
Observ. mycol. 2: 192. 1815.

Galorrheus hysginus (Fr.: Fr.) Fr.
Stirp. agri femsion. (III): 57. 1825.

Lactifluus hysginus (Fr.: Fr.) Kuntze
Revis. gen. pl. 2: 857. 1891.

Taxonomic synonyms:

= Lactarius chrysophyllus Z. Schaef., Ceska Mykol. 11: 52. 1957.

= Lactarius pseudohysginus J. Blum, Lactaires: 170. 1976.

Original diagnosis

inodorus, pileo umbilicato laevi viscoso l. nitido subcarneo, lamellis adnatis, stipite glaberrimo incarnato maculato. Variis muscosis circa Femsjö legi ex. gr. in pratis depressis muscosis, ad latera viarum arenosa, in pinetis &c, Aug. Septembri. Valde distincta species-forte tamen A. ruber nonullorum ad hunc pertinet. Ab sequentibus in omni status distincto: pileo viscoso l. e glutine exsiccato nitido.
Descr. Stipes cavus, 1-3 unc. deorsum subattenuatus, ½ unc. circiter crassus, saepe radicatus et curvatus, teres glaberrimus fragilis albido-incarnatus, sursum maculis obscurioribus variegatus; intus albus, pileus carnosus convexo-planus, semper umbilicatus, laevis glaber, aut viscosus aut siccus nitidus carneus azonus, 2-3 unc. latus, margine deflexo pallidiori. Caro alba, vix lactescens. Lamellae totae adfixae, 4-8 natae, subconfertae subarcuatae lacteae parce lactescentes. Lac album immutabile. Sapor acerrimus.
Ad A. blennium l. p. 60 (ubi loc. t. VI., leg. T. V. - et syn. Ag. trivialit plane deleatur) certe pertinet A. curtipes Schum. et A. viridis. Schrad. spic. 123.

Typification

Information not available

Description

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Microscopy

SEM photos