Description of Helvella dryophila Vellinga & N.H. Nguyen from

Title: Hill")] (Public)
Name: Helvella dryophila Vellinga & N.H. Nguyen
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Description status: Unreviewed

Taxonomic Classification:

Domain: Eukarya
Kingdom: Fungi
Phylum: Ascomycota
Class: Pezizomycetes
Order: Pezizales
Family: Helvellaceae

General Description:

Pileus: 15–45 mm high, 21–55 mm diameter; irregular, lobbed, grooved; dark to black
Stipe: 35–75 x 10–20 mm; cylindrical ribbed, lacunose; white, off-white to gray (when older)

Diagnostic Description:

High contrast between dark cap and light stipe.
Ectomycorrhizal with Quercus (Oak) and Arbutus menziesii (Madrona)


southern Oregon to southern California


Ectomycorrhizal with Quercus (Oak) and Arbutus menziesii (Pacific Madrone).

Look Alikes:

It is very similar to Helvella vespertina, but for different ectomycorrhizal associate. H. dryophila typically has the higher contrast between the cap and stipe.


Nguyen NH, Landeros F, Garibay-Orijel R, Hansen K, Vellinga EC; The Helvella lacunosa species complex in western North America: cryptic species, misapplied names and parasites; Mycologia. 2013 Sep-Oct;105(5):1275-86. doi: 10.3852/12-391. Epub 2013 May 24.


The paper also found evidence of other species, but without enough specimens to propose more, so there are more Helvella species to be identified in western North America.

Description author: P. Hill (Request Authorship Credit)
Description editor: Joseph D. Cohen

Created: 2013-12-03 02:17:56 CST (-0600) by P. Hill (phill)
Last modified: 2013-12-03 11:21:28 CST (-0600) by P. Hill (phill)
Viewed: 108 times, last viewed: 2019-11-14 04:05:24 CST (-0600)