34(32) Veil hyphae thin-walled. Spores 6.5-7.5 × 5µm, 'shouldered' about the apiculus. _Coprinus filamentifer_ (fig. 61) - Veil hyphae thin- and thick-walled, often with clamps. Spores elliptic-oblong, 9-10 × 5-6µm. _Coprinus vermiculifer_ (fig. 60) (_Coprinus flocculosus_, with spores 11.5-16.5 × 6-9.5µm, can be found on straw/dung mixtures). 35(29) Stem with small, distinct ring. Spores subglobose to lentiform and 5-angled, 6-9 × 6.5-8 × 5-6µm. _Coprinus ephemeroides_ - Stem at most with fibrils, even then rarely forming a faint ring zone. 36 36(35) with setules in addition to veil. 37 - Cap without setules. 38 37(36) Cap cystidia tapered. Spores 11-14 × 5-6.5µm. _Coprinus heptemerus_ - Cap cystidia capitate. Spores 10-11 × 6-7µm. _Coprinus curtus_ 38(36) Veil of inflated bladder-like cells attached to filamentous units. Spores 7.5-8 × 4.5-5.5µm. _Coprinus utrifer_ - Veil of globose and subglobose cells and filamentous units often encrusted or with minute projections found sometimes at cap margin. 39 39(38) Globose cells, if ornamented then possessing crystalline or amorphous material (dissolved by 1N HCl, fig. 64.) 40 - Globose cells covered in small fine blunt projections on the walls (not removed by 1N HCl, fig. 64). 45 40(39) Basidia 2-spored. 41 - Basidia 4-spored. 42 41(40) Spores 14-17 × 8.5-10 × 12.5-14µm. _Coprinus pachyspermus_ - Spores smaller, 9-11 × 6-6.5 × 8-9µm. _Coprinus cordisporus_ (2-spored form) 42(40) Spores less than 10µm long. _Coprinus cordisporus_ (fig. 63) (_C. patouillardii_ is known on garden refuse, and an undescribed species with lemon-shaped spores has recently been found). - Spores 10µm or more long. 43 43(42) Veil soon discolouring greyish, drab or buff, Spores 11.5-14.5 × 6-8 × 7.5-9µm. _Coprinus cothurnatus_ - Veil remaining snowy white, only slowly discolouring greyish. 44