该物种最早由Watling (1999)发现于马来西亚的龙脑香林中。可以确认该物种属于蘑菇属，但由于其菌褶颜色过于独特（他本人描述为lazuline，青金石色的），Watling认为它是一个新属，并为了致敬Paul Heinemann对热带地区的大型真菌研究贡献（尤其是对蘑菇科的贡献），Watling将属名定为Heinemannomyces，即海氏蘑菇属，物种名称则为H. splendidissimus，即华丽海氏菇（海氏蘑菇）。此后，没有发现该属更多的物种。 后续对蘑菇科的系统发育学研究表明，华丽海氏菇在系统发育树上落在层蘑菇属Hymenagaricus内部，但鉴于形态上的独特性，一直以来都没有将华丽海氏菇合并入层蘑菇。直到2024年，Kun L. Yang et al.将两属合并，华丽海氏菇改称华丽层蘑菇。
类型：简短的描述（摘录自图鉴等，请注意甄别描述真实性） 描述原文： Heinemannomyces splendidissimus Watling, Belg. J. Bot. 131(2): 135 (1998) Figs 6, 7 Description. Basidiomata medium-sized to large. Pileus 35–65 mm broad, at first hemispherical, then convex to applanate with age, sometimes depressed at disc, pileus surface covered by snuff brown, chestnut brown, purple-brown or grayish red (9B4, 9C4, 10CD4), woolly-floccose or woolly arachnoid velar remnants, usually darker at center, outer zone showing dull white to whitish background when the velar remnants vanish; margin incurved with slightly appendiculate velar remnants, often slightly lacerated; context 3–4 mm thick at pileus centre, elsewhere thin, changes from white to slightly reddening when cut or injured. Lamellae free, depressed around the stipe, broadly ventricose, bluish gray to leaden gray (19B3, 18C3) when young, becoming dark blue (19E4–7) to bluish gray (19D3–5) when mature; 3–4 tiers of lamellulae. Stipe 50–60 × 5–6 mm, central, cylindrical, slightly tapering towards the base floccose-squamulose all over the stipe, often vanish from handling or rain, with lighter shade of the pileus color, fistulose; stipe context slightly reddening when cut or injured. Annulus delicate, fugacious. Odor and taste unknown. Basidiospores [60/3/3] (5.5–)6–6.5(–7) × 3.5–4.5(–5) μm, [mean length = 6.25 μm, mean width = 4.15 μm, Q = 1.42–1.55(–1.63), Q m = 1.50 ± 0.043], ellipsoid to ovoid-ellipsoid, inamyloid, slightly thick-walled (0.5 μm), smooth, dark brown, grayish brown to slightly leaden gray in H 2 O and 5% KOH. Basidia 13–19 × 7–9 μm, clavate to broadly clavate, colorless or pale yellow in H 2 O and KOH, 4-spored, rarely 2-spored, with sterigmata up to 2 μm long. Lamellar trama regular to subregular, composed of thin-walled cylindrical hyphae 4–8 μm wide. Cheilocystidia 15–22 × 6–10 μm, abundant and scattered colorless, clavate to cylindro-clavate, sometimes narrowly fusoid, smooth, hyaline, thin-walled. Pleurocystidia absent. Pileus trama hyaline or pale yellow, 4–10 wide hyphae; refractive hyphae very common, 5–8 μm wide. Pileipellis (woolly-floccose squamules on pileus) a complex of hyphal types, interwoven, loosely arranged, brick red in mass but hyaline to light red or pale red individually when observed in H 2 O and KOH, sometimes slightly puffy or swollen in some portion of some hyphae, smooth, thin-walled, cylindrical hyphae 4–10 μm wide; terminal elements measuring 20–50 × 4–10 μm. Stipitipellis similar to pileipellis but with paler color and slightly narrower hyphae measuring 3–8 μm wide. Stipe trama composed of parallel hyphae 4–9 μm wide, hyaline; refractive hyphae sometimes present 3–5 μm wide. Clamp connections not found in any tissue. Habit, habitat and distribution. Solitary, scattered on the ground; known from Malaysia, Thailand, and now China. Specimens examined. CHINA, Guangdong Province, Shantou City, Nanao Island, 8 May 2015, Iqbal, Tai-Hui Li & Ting Li (GDGM 46633); same location, 9 May 2015, Iqbal, Tai-Hui Li & Ting Li (GDGM 46634, GDGM46635).
