~Stropharia coronilla~ (Fries) Quélet, resembling a little mushroom (i.e. _Agaricus_) is also found in sand-dune systems and, just as species of _Psathyrella_, it possesses purplish black spores. However, the cap is ochraceous yellow with a whitish margin formed of veil fragments. The stem is white becoming yellow with age and possesses a narrow, white striate ring. The spores are ellipsoid and measure 8-9 × 4-5 µm and it has filamentous cells in the cap. Unlike _P. ammophila_ it is not confined to sand-dune systems but it is also to be found in pastures and on heaths. [Illustration: Plate 80. Sand-dune fungi] ~Conocybe dunensis~ P. D. Orton Sand-dune brown cone cap. _Cap_: width 10-30 mm. _Stem_: width 2-4 mm; length 40-100 mm. _Description_: Plate 80. Cap: conical then conico-expanded, date-brown, dull sand-colour or dark liver-colour, drying buff or ochraceous, expallent, not or indistinctly striate when moist. Stem: whitish or pale ochraceous then darker ochraceous or dirty brownish from the base up, lower part whitish and buried in the sand. Flesh: thin and pale ochraceous. Gills: adnate, whitish but soon pale honey and finally rusty honey. Spore-print: rust-brown. Spores: long, ellipsoid or slightly amygdaliform, golden brown under the microscope with large germ-pore and 12-14 × 7-8 µm in size. Facial cystidia: absent. Marginal cystidia: capitate. _General Information_: _C. dunensis_ differs from _C. tenera_ in its dull colours (see p. 116) and habitat preferences. _Conocybe dunensis_, _Stropharia coronilla_, the two species of _Psathyrella_ are all dull-coloured. However, in the sand-dunes colourful agarics are also found. The most common is _Hygrocybe conicoides_ (P. D. Orton) Orton & Watling; _Laccaria maritima_ (Theodowicz) Moser is indeed an unusual but rewarding find. ‘Lac’ as in _Laccaria_ is a red-brown resinous substrate produced by the lac-insect and resembles the cap colour of many species of the genus, including _L. maritima_, _L. laccata_ and _L. proxima_ (see p. 86). All these fungi were formerly placed in _Clitocybe_, but they differ in the warted or spiny spores which at maturity give the rather thick gills the appearance of being heavily talced. _L. maritima_ can be distinguished from all other species of Laccaria by the elongated spores which are minutely spiny and not strongly warted as in _L. laccata_. _Hygrocybe conicoides_ (P. D. Orton) Orton & Watling has a conical to conico-convex, acutely umbonate cap with wavy-lobed margin; it is scarlet or cherry-red, discolouring blackish with age or on bruising. The gills are at first chrome-yellow then become flushed red and the stem is yellow or greenish lemon becoming streaky blackish after handling. The spores are 10-13 × 4-5 µm in size and slightly French bean-shaped. It can be readily distinguished from close relatives, e.g. _H.