Basionym: Peziza pygmaea Fries., Systema Mycologicum 2: 79. 1822.
Lachnum pygmaeum (Fries) Bres., Ann. Mycol. 1: 121. 1903.
Description：
Apothecia up to 2 mm., cup-shaped at first, becoming peltate at maturity and with inrolled margin when dry, clothed with short, white hairs, long stipitate. Stipe up to 5 mm long, 0.5-1.0 mm diam., tapered toward the base, sparsely covered with white hairs. Disc plano-concave, yellow when fresh, becoming orange to brown when dry. Hairs up to 62 × 3.1-4.7 mm, hyaline, cylindrical, obtuse, thin-walled, septate, roughened with tightly adhering granules. Subhymenium not clearly differentiated. Medullary excipulum of hyaline textura porrecta adjacent to the ectal layer. Asci 61-71 × 4.6-6.3 mm, 8-spored, narrowly cylindric-clavate, apex conical, J+ with long slender stalk. Ascospores 5.6-6.8(-11) × 1.6-2.0 mm, hyaline, narrowly fusiform, often inequilateral or slightly curved, biseriate or obliquely uniseriate. Paraphyses hyaline, lanceolate, exceeding the asci by 10-20 mm.
Specimens：
Taiwan, Kaohsiung: Liukuei, alt. 750 m, on seed coat, 22 Dec. 1993, Y. Z. Wang, 93122201 (TNM F1447).
Habitat：
On seed coat.
Distribution：
Australia, Canada, Czechoslovakia, England, France, Germany, India, Jugoslavia, Luxemburg, Mainland China, Poland, Portugal, U. S. A. and Taiwan.
References：
Wu, ML et al. 1998; Spooner, BM. 1987.
Provided：
M. L. Wu
Note：
It was reported from other countries that the species was usually growing on buried stems and dead roots of various plants or attached to wood just covered by soil. However, the sample from Taiwan was on seed shell. This is a widely distributed fungus, but it is never plentiful.
Phylum：Ascomycota >> Class： Ascomycetes >> Order： Helotiales 
BCRC Number：