Guidi G., Miller K.
Vol. 18 () – 15 novembre 2026
doi: 10.25664/art-0445
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Abstract: A new species of Helvella is described from Puerto Rico, in association with Coccoloba diversifolia, also representing the first documented record of the genus on this island. The study includes photographs of the ascomata in their natural habitat, extensive documentation of the microscopic characters, and a phylogenetic analysis aimed at clarifying its systematic placement and relationships with closely related species.
The genus Helvella L., established by Linnaeus in Species Plantarum (Linnaeus, 1753), represents one of the most distinctive and morphologically diverse genera within the Pezizomycetes. Species of Helvella generally produce relatively large, stipitate ascomata that are readily visible in the field and display a remarkable diversity of forms, ranging from cupulate or discoid to saddle-shaped and irregularly lobed. This conspicuous morphological diversity has historically facilitated recognition of the genus […]