DOI: 10.5281/zenodo.15145811
title: TABLE 1 in Pseudosperma quercinum sp. nov. (Inocybaceae) from the Himalayan forests of Pakistan

description: TABLE 1. Comparison of Pseudosperma quercicum with other Pakistani taxa of Pseudosperma.
SpeciesPileusStipeBasidiosporesCheilocystidiaClamp ConnectionsReferencePseudosperma albobrunneumWhite becoming brownish with age; umbo yellowish becoming brownish at maturityFibrillose, caulocystidia at the extreme apex of the stipeElongate to cylindric, sub-reniform, (12.7)13.2–14.4(16.4) × (5.3)6.1– 6.9(8.2) µmClavate, connected with basal cellPresentJabeen et al. (2021)P. flavorimosumYellowish brown with dark brown fibrillose streaks, dry, fibrillose, radially rimose towards the margin; umbo dark brownNarrower towards the apex and wider towards the base, apex furfuraceous, base splitting, surface dry, context off white under a yellowish to dark brown cuticleEllipsoidal to slightly amygdaliform, (7.8)9.5–12.8(13.31) × (5.7)6.3–7.8(8.9) µmBroadly clavate, thin-walled, (18.5)19.2– 21.7(25.3) × (7.5)7.7–8.6 (9.1) µmNot observedJabeen et al. (2020); Saba et al. (2020)P. himalayenseConical to campan-ulate when young becoming plano-convex at maturity, smooth, silky, shiny, fibrillose, radially splitting, outermost margin light cream, pale yellowish to camel brown umbo and margins concolorousWhite to creamy, cylindrical, central, pruinose towards apex of stipe when young, flesh white, firm, woody texture, caulocystidia present at stipe apex only, like cheilocystidiaEllipsoid to slightly amygdaliform, not phaseoliform, 10.5–13.0 × 7.0–8.1 µmRarely cylindrical to clavate, 43–60 × 13.8– 23.8 µmPresentLiu et al. (2018)P. pakistanenseSmall to medium highly rimose and fibrillose golden brown with creamy silver margins, reddish brown prominent umboCylindrical, broader up to 0.6 cm towards the apex and narrower towards the base, surface dry, off white, sometimes light brown from the centerEllipsoid to amygdaliform, slightly phaeseoliformClavate cystidia having a clamp connection at the basePresentUllah et al. (2018)P. pinophyllumConvex to broadly convex or plane with an acute umbo; margin straight or flaring to deflexed; surface dry, dull, rimose, cracked towards centre, strong brown throughout, acute umbo dark brown umboCharacterized by the pale to light yellow equal stipeSmooth, phaseoliform or ellipsoid, 9.4–15.8 × 6.3–8 µmNumerous, clavate or cylindrical, hyaline to pale brown in KOH, thin-walled, 25–47 × 10–20 µmPresentSaba et al. (2020)P. triaciculareBrownish orange to fulvous pale velipellis coating on the pileus, acutely umbonateEqual, fibrillose, white with pale orange yellow tinge. Caulocystidia 36–98 × 7–14 µm, cylindrical, non-encrusted, hyphoid, thin-walledElliptic, 8.9–12.5 × 6.1–7.7 µmSeptate cheilocystidiaPresentSaba et al. (2020)Base swollen up to 2 cm wide, becoming narrower towards theP. mimicumSpherical, conical becoming wide towards maturity, brown becoming light brown to yellowish brown towards the margins; umbo brownapex, off white context with brownish patches, central, cylindrical, surface granular to fibrillose towards the base. Caulocystida 55.3–70.5 × 9.4–16.6 µm, cylindrical to clavate or fusoidSmooth, ellipsoid, (9.3) 10.3–13.2 (14.5) × (6.1) 6.4–7.2 (8.1) µmSlenderly clavate or cylindrical, 33.2–74.5 × 10.8–23.6 µmPresentSaba et al. (2015); Jabeen (2016)
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description: Published as part of Naseer, Arooj, Jabeen, Sana, Ashfaq, Ammara, Akbar, Mahrukh, Hussain, Syed Iftikhar & Khalid, Abdul Nasir, 2023, Pseudosperma quercinum sp. nov. (Inocybaceae) from the Himalayan forests of Pakistan, pp. 268-269 in Phytotaxa 622 (4) on page 268, DOI: 10.11646/phytotaxa.622.4.3, http://zenodo.org/record/10084792