On the type of Coprinus goudensis Uljé
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Original description
Coprinus goudensis Uljé in Persoonia 15(3):363.1993 - Fig. 3
Pileus 10-20 mm latus, albus vel griseolus, centro griseo-brunneus, velo albo, fibrilloso-flocculoso vel fibrilloso-squamuloso obtectus. Lamellae liberae, subdistantes, primo albae vel griseo-brunneae, postea nigrae. Stipes 20-40 x 1-1.5 mm, deorsum subincrassatus, basi interdum subbulbosus, albo-fibrilloso-flocculosus.
Sporae 7.0-9.8 x 4.6-6.0 µm, ovoideae, ellipsoideae vel subamygdalifonnes, pallide griseo-rubro-brunneae, poro germinativo centrali instructae. Basidia tetraspora. Pleurocystidia 60-100 x 35-50 µm, ellipsoidea vel late cylindrica, raro subglobosa vel obovoidea. Cheilocystidia 30-80 x 20-50 µm, (sub)globosa, ellipsoidea vel obovoidea, raro late utriformia vel cylindrica. Pileipellis ex hyphis repentibus, 3-18 µm latis constans. Hyphae veli ramosae, tenui-tunicatae, 3-10 µm latae, raro ad 15 µm latae et disperse diverticulatae; diverticula 8-15 x 1-4 µm, cylindrica, apice rotundata. Fibulae adsunt. Typus: 'Netherlands, prov. Zuid-Holland, Reeuwijk near Gouda, 14.XI.1991, C.B. Uljé 1217 (L).'

Pileus up to 12 x 9 mm when still closed, first ellipsoid to ovoid, then conical, finally flattened with reflexed margin, 10-20 mm wide when expanded, covered with white veil and this unbroken when young but soon radially splitting up in hairy-flocculose scales, with surface white to greyish under veil, dark grey-brown at centre when fresh, paler when drying. Lamellae, L = 23-26,1 = 0-3, free, subventricose, moderately distant, white to greyish brown, finally black. Stipe 20-40 x 1-1.5 mm, hollow, whitish, slightly thickening towards equal to subbulbous base, white hairy-flocculose all over but more densely so at base than at apex.
Spores [60,2,2] 7.0-9.8 x 4.6-6.0 µm, av. L = 8.4-8.8, av. B = 5.0-5.1 µm, Q = 1.50-1.90, av. Q = 1.65-1.70, ovoid, ellipsoid or slightly amygdaliform, rather pale greyish red-brown; germ pore central, c. 1.3 um wide. Basidia 18-40 x 7-9 µm, 4-spored. Pseudoparaphyses (3-)4-5(-6) around each basidium. Pleurocystidia 60-100 x 35-50 µm, ellipsoid to broadly cylindrical, more rarely subglobose or obovoid. Cheilocystidia 30-80 x 20-50 µm, globose, subglobose, ellipsoid or obovoid, seldom broadly utriform or subcylindrical. Pileipellis consisting of repent, 3-18 µm wide hyphae consisting of cylindrical or somewhat inflated elements, constricted at septa. Elements of suprapellis in part diverticulate. Veil on pileus consisting of branched, hyaline, thin-walled, 3-10 µm wide, sometimes up to 15 µm wide hyphae locally with cylindrical or upwards tapering diverticulations with rounded apex, up to 8(-15) µm in length and 1-4 µm wide. Clamp-connections present.
Habitat. On the side of a stump of Acer pseudoplanatus in a maple plantation.

Collections examined. NETHERLANDS: prov. Zuid-Holland, Reeuwijk near Gouda, Reeuwijkse Hout, 20 Oct. 1991, C.B. Uljé 1213; 14 Nov. 1991. C.B. Uljé 1217 (holotype, L).

Because of the branched, diverticulate veil C. goudensis belongs to the subsect. Ala-chuani Sing. (= Impexi s. Kühn. & Rom., 1953). In this section, six species have been compared with the present species, viz. C. suburticicola Pilat & Svrcek (1967: 140), C. urticicola (Berk. & Br.) Buller s. Redhead & Traquair (1981: 388), the tropical species C. neotropicus Redhead & Traquair (1981: 394), C. luteocephalus Watling (1972: 359), C. xenobius P.D. Orton (1976: 148), and C. stanglianus Enderle et al. (1988: 62). Coprinus urticicola differs in much smaller basidiocarps, smaller spores (5.5-8 x 4-5.5 µm according to Pilat & Svrcek, 5.5-8 x 3.9-5.1 µm ace. to Redhead & Traquair) and its habitat on grasses. Coprinus suburticicola deviates in the same features except the size of the spores (7-9 x 5-6 µm). After an examination of the type Redhead & Traquair (1981: 390) stated that although many of its spores are larger than in typical C. urticicola, the spore size ranges overlap too much to maintain C. suburticicola as a separate species. Coprinus neotropicus is a tropical species with much smaller and much broader spores. Coprinus luteocephalus has yellow veil, larger spores and grows on dung; the last two characters also apply to C. xenobius. Coprinus stanglianus has much larger spores and basidiocarps and grows on the soil, among grasses.

Fig. 3. Coprinus goudensis. All figures from type. Up
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