Strobilurus conigenoides is well characterized by its unique substrate, the seed pods of Magnolia (Singer 1962; Horak 1968; Redhead 1980). In another study, this species was also found on fruits of Liquidambar styraciflua (Bessette et al. 1993). The identification, however, is not confirmed by molecular data. The distribution of S. conigenoides is expanded to now include Panama.
Basidiospores [52/2/2] (4.5–)5–6(–7) × (2–)2.5–3.2(–5) μm, [Q = (1.40–)1.67–2.26(–2.50), Qm = 3.00 ± 0.24], cylindrical to lacrymoid, hyaline, thin-walled, smooth, ina- myloid. Pleurocystidia 28–39 × 8–12 μm, fusoid, thick- walled (walls ca. 1 μm thick); apices usually acute, ocassionally subcapitate, slightly thick-walled.
Habitat: Autumn, occasionally spring, on seed pods of Magnolia or fruits of Liquidambar, in North and Central America.