Synonyms: Agaricus cupularis, Agaricus obnubilus, Agaricus obscuratus, Lactarius cupularis, Lactarius cyathula, Lactarius obnubilus, Lactarius radiatus, Lactifluus obnubilus, Tubaria cupularis.
Common name: alder milkcap.
Lactarius obscuratus is a species of mushroom that grows on the ground in association with oak and pine trees. In East and Central Texas, it typically fruits from July to October, producing small to medium-sized caps that are 2-6 cm in diameter, convex to flat in shape, and reddish-brown to brown in color with a velvety texture. The gills are crowded, narrow, and pale yellowish to cream-colored, and the stem is slender, 2-5 cm long, and 0.5-1.5 cm thick. The spore print is white to cream-colored. This species is often found in wooded areas with rich soil and moderate to high levels of rainfall.
Observations of the fungus Lactarius obscuratus in East and Central Texas reveal its presence in specific habitats. On April 10, 2020, specimens resembling Alder milkcap mushrooms (Lactarius obscuratus) were found on the Caney Creek section of the Lone Star Hiking Trail in Sam Houston National Forest, north of Montgomery, Texas. The discovery suggests that L. obscuratus may thrive in this region's forest ecosystems. Further study is needed to confirm the identity of these specimens and understand their ecological role in East and Central Texas. The sighting highlights the diversity of fungal species in the area and encourages continued exploration of the region's mycological landscape, potentially leading to new discoveries and a deeper understanding of the local ecosystem. This observation contributes to the growing body of knowledge on fungal distribution and habitat preferences in Texas.
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