Synonyms: Campanella cucullata, Cantharellus junghuhnii, Favolaschia celebensis, Guepinia cucullata, Laschia celebensis, Laschia cucullata, Merulius cucullatus.
Common name: snowy shells.
Campanella junghuhnii is a species of fungus in the family Marasmiaceae. It is characterized by its small to medium-sized fruiting bodies, typically 1-4 cm in diameter, with a bell-shaped cap and a long, thin stipe. The cap is often yellowish-brown to reddish-brown, and the gills are crowded and attached to the stipe. In East and Central Texas, Campanella junghuhnii has been found growing on decaying wood, particularly on hardwoods such as oak and maple, in moist, shaded areas. It fruits in the summer and fall months, typically from June to November.
Small white mushrooms Campanella junghuhnii(?) on a fallen twig near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, August 20, 2022
Snowy shells mushrooms (Campanella junghuhnii)(?) on a mossy tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 4, 2022
Tiny white mushrooms Campanella junghuhnii(?) on a mossy tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 4, 2022
Side view of mushrooms Campanella junghuhnii(?) on a living tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 4, 2022
Upper view of mushrooms Campanella junghuhnii(?) on a living tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 4, 2022
Underside of mushrooms Campanella junghuhnii(?) on a living tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 4, 2022
Spores of mushrooms Campanella junghuhnii from a mossy tree (spore print white) collected in Sam Houston National Forest near Montgomery. Texas, September 4, 2022
Spore size 5.9 - 7 × 4.3 - 5.07 µm, length to width ratio Q = 1.34 - 1.4.Observations of Campanella junghuhnii in East and Central Texas revealed the fungus growing on various substrates, including fallen twigs and mossy trees. On August 20, 2022, small white mushrooms were found on a twig near Pole Creek. Later, on September 4, 2022, similar mushrooms were observed on mossy trees along Caney Creek Trail, with some specimens found on living trees. The mushrooms were described as tiny and white, with a snowy shell-like appearance. Close-up views revealed the underside of the mushrooms, and a spore print collected from a mossy tree showed white spores. The fungus was consistently found in the Sam Houston National Forest north of Montgomery, Texas, during late summer. The observations suggest that Campanella junghuhnii thrives in the region's humid environment, particularly on moist substrates like mossy trees and fallen twigs.
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