Synonyms: Bulgaria olivacea, Humaria olivacea, Karschia olivacea, Lagerheima carbonicola, Lagerheima pilosa, Mollisia olivacea, Patellaria olivacea, Patinella olivacea, Peziza olivacea, Rhizina nigro.
Common name: olive salver.
Catinella olivacea is a species of fungus in the family Helotiaceae, characterized by its small to medium-sized, olive-green to brown apothecia with a short stalk. In East and Central Texas, it typically grows on decaying wood, particularly oak and maple, in moist environments such as stream banks and woodland edges. The fungus produces ascospores that are ellipsoidal to cylindrical in shape, measuring 10-15 x 3-5 μm. It fruits in the spring and fall, often forming small to large clusters on the substrate.
Cup fungus Catinella olivacea(?) on a resupinate polypore mushroom on a smooth wet branch in swampy area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, July 7, 2018
Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Close up of Ascomycete fungus Catinella olivacea(?) on a resupinate polypore mushroom on a smooth wet branch in swampy area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, July 7, 2018Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Dark Ascomycete fungus Catinella olivacea(?) on a resupinate polypore mushroom on a smooth wet branch in swampy area on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, July 7, 2018Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Tiny green cup fungus Catinella olivacea on underside of a thick half-decomposed pine log in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Lone Star Hiking Trail, San Jacinto County, Texas, United States
Pattern of Ascomycete fungus Catinella olivacea on underside of a thick pine log in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Lone Star Hiking Trail, San Jacinto County, Texas, United States
Green cups of Ascomycete fungus Catinella olivacea on underside of a thick pine log in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Lone Star Hiking Trail, San Jacinto County, Texas, United States
Close-up of green cups of Ascomycete fungus Catinella olivacea on underside of a thick pine log in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Lone Star Hiking Trail, San Jacinto County, Texas, United States
Decomposing of green cups of Ascomycete fungus Catinella olivacea on underside of a thick pine log in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Lone Star Hiking Trail, San Jacinto County, Texas, United States
Asci with spores at low mafnification of Ascomycete fungus Catinella olivacea, collected in Big Creek Scenic Area of Sam Houston National Forest. Texas, April 30, 2023
Asci, spores and paraphyses of Ascomycete fungus Catinella olivacea, collected in Big Creek Scenic Area of Sam Houston National Forest. Texas, April 30, 2023
Asci with spores of Ascomycete fungus Catinella olivacea, collected in Big Creek Scenic Area of Sam Houston National Forest. Texas, April 30, 2023
Spores (in Melzer) of Ascomycete fungus Catinella olivacea (could be contaminated by other spores) collected in Big Creek Scenic Area of Sam Houston National Forest a day before. Texas, May 1, 2023
Spores (in KOH) of Ascomycete fungus Catinella olivacea collected in Big Creek Scenic Area of Sam Houston National Forest a day before. Texas, May 1, 2023
Spore size 8.8 - 9.5 × 3.8 - 4.3 µm, length to width ratio Q = 2.14 - 2.4.In East and Central Texas, observations of the fungus Catinella olivacea were made on various substrates. On Caney Creek Trail in Sam Houston National Forest, it was found growing on a resupinate polypore mushroom on a smooth wet branch in a swampy area. The fungus appeared as dark, green cups, and its pattern was observed on the underside of a thick pine log in Big Creek Scenic Area. Close-up observations revealed the green cups, asci with spores, and paraphyses. Microscopic examination showed asci with spores, and spores were also observed in Melzer and KOH solutions. The fungus was found to be decomposing on the underside of a thick pine log, suggesting its role in breaking down organic matter. Observations were made in July 2018 and April-May 2023, indicating its presence in the region during different times of the year.
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