Summary: Features include 1) resupinate growth on hardwoods, 2) a fruitbody that becomes cream and pinkish buff to wood-brown in the herbarium, more or less colliculose, with broad, slightly elevated granules, the margin narrow, fibrillose, sometimes radiate, 3) spores that are 8-12 x 5-8 microns, smooth, and colorless, and 4) hyphae 2-3 microns wide, mixed with mineral material, somewhat longitudinally interwoven and then ascending to a compact hymenium. According to Hjortstam (1989) quoted by J. Ginns, the type "is obviously an extreme form of the familiar and variable Radulomyces confluens" (Ginns(5), Latin name italicized).
Microscopic: SPORES 8-12 x 5-8 microns, flattened on one side, smooth, colorless; no gloeocystidia; HYPHAE 2-3 microns wide, rarely wider, "not incrusted but mixed with more or less mineral matter", "somewhat longitudinally interwoven and then ascending to a compact hymenium"; section not colored, (Burt)
Notes: Radulomyces cremoricolor has been found in BC, NS, AL, CA, DC, FL, IL, IN, MA, MD, MI, MN, MO, NJ, NM, MY, OH, PA, TX, and WI, (Ginns(5)).
Habitat and Range
SIMILAR SPECIES
Radulomyces confluens is similar to and has not been compared critically to R. cremoricolor, (Ginns(23)).
Habitat
on bark of decaying Quercus (oak) and other hardwoods; April to December, (Burt), Abies magnifica (California Red Fir), Ilex sp., Prunus sp., Quercus sp., (Ginns(5))
Synonyms
Synonyms and Alternate Names: Helotium pruinosum Jerdon in Berk. & Broome Pseudohelotium jerdonii Sacc.