 on natural substratum --- On squash surfaces ([Fig 3d](#F3){ref-type="fig"}) and re-inoculated apple; fuliginous signs ([@R29]) characterised by uniform mats of mycelia with abrupt to feathered edges. As described in [@R4], a modified version of Koch's postulates was performed to verify the signs observed on squash are also observed on apple.

*Specimen examined*. USA, Iowa, Gilbert, on fruit surface of *Cucurbita maxima* (cv. Blue Hubbard), Oct. 2009, *D. Mayfield*, holotype CBS H-20928, ex-type cultures CBS 132087 = CPC 19423 = BHF50a3.

Notes --- *Ramichloridium cucurbitae* is phylogenetically closely related to *R. apiculatum*, but distinct in having conidiophores that can be reduced to conidiogenous cells. Its conidiogenous cells are slightly narrower than those of *R. apiculatum* (2--3.5 μm; [@R2]). Generally colonies of *R. apiculatum* are also fast-growing, reaching 35 mm after 2 wk, which is not the case for the slower growing *R. cucurbitae*, which only reaches this diameter after 1 mo of incubation.

***Ramichloridium luteum*** G.Y. Sun, H.Y. Li & Crous, *sp. nov. ---* MycoBank MB564671; [Fig. 7](#F7){ref-type="fig"}, [8](#F8){ref-type="fig"}

*Etymology*. Named after the luteous pigment produced when cultivated on artificial medium.

*Mycelium* consisting of subhyaline to pale brown, smooth, septate, branched, 1.5--3 μm diam hyphae. *Conidiophores* erect, arising as lateral branches on superficial hyphae, 1--3-septate, unbranched, mostly straight to gently curved, subcylindrical, brown, smooth, 25--80 × 2--3 μm. *Conidiogenous cells* terminal, integrated, tapering towards an acutely rounded apex, pale to medium brown, subcylindrical, 15--30 × 2--3 μm; fertile part as wide as lower part of conidiogenous cell, with taper towards apex; proliferating sympodially, forming a rachis with slightly thickened and darkened, circular, somewhat protruding scars, ± 0.5 μm diam. *Conidia* (6−)7--10(−13) × (2−)3--4(−4.5) μm, solitary, aseptate, pale brown, finely verruculose, oblong to ellipsoid, a