A multi-gene phylogeny of Chlorophyllum (Agaricaceae, Basidiomycota): new species, new combination and infrageneric classification Author Ge, Zai-Wei Author Jacobs, Adriaana Author Vellinga, Else C. Author Sysouphanthong, Phongeun Author Walt, Retha van der Author Lavorato, Carmine Author An, Yi-Feng Author Yang, Zhu L. text MycoKeys 2018 32 65 90 http://dx.doi.org/10.3897/mycokeys.32.23831 journal article http://dx.doi.org/10.3897/mycokeys.32.23831 1314-4049-32-65 Chlorophyllum sect. Ellipsoidospororum Z.W. Ge sect. nov. Diagnosis. Differs from other sections by the slender basidiocarps with furfuraceous squamules on the pileus, the non-pored, ellipsoid basidiospores and subcylindric to slightly fusiform cheilocystidia. Type. Chlorophyllum hortense (Murrill) Vellinga, Mycotaxon 83: 416. 2002. ≡ Lepiota hortensis Murrill, N. Amer. Fl. (New York) 10 (1): 59. 1917. Description. Basidiocarps agaricoid, small to medium sized, with furfuraceous squamules. Basidiospores ellipsoid to ovoid without germ pore. Cheilocystidia narrowly clavate to subcylindrical. Pileipellis a loose hymeniderm made up of clavate to subfusiform hyphae. Discussion . This section is represented by C. hortense , C. demangei and the new taxon C. africanum . Chlorophyllum alborubescens (Hongo) Vellinga, C. humei (Murrill) Vellinga, C. mammillatum (Murrill) Vellinga, C. subfulvidiscum (Murrill) Vellinga, Leucoagaricus bisporus Heinem., which were treated as synonyms of C. hortense (Murrill) Vellinga (Vellinga 2003; Akers and Sundberg 1997 ) also belong here (Figure 1).