Tuber gibbosum

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Tuber gibbosum
Tuber gibbosum 85547.jpg
Scientific classification
T. gibbosum
Binomial name
Tuber gibbosum
Harkness (1899)
Tuber gibbosum
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Mycological characteristics
glebal hymenium
hymenium attachment is not applicable
lacks a stipe
spore print is blackish-brown to brown
ecology is mycorrhizal
edibility: choice

Tuber gibbosum is a species of truffle in the genus Tuber.[1] It is found in the Pacific Northwest region of the United States, where it grows in an ectomycorrhizal association with Douglas-fir.

Taxonomy and phylogeny[edit]

Tuber gibbosum

Tuber bellisporum

Tuber castellanoi

Tuber oregonense

Tuber sphaerosporum

Tuber anniae

Tuber borchii

Tuber irradians

Phylogeny of Tuber species in the Gibbosum clade, based on ribosomal DNA sequences.[1]

The species was first described by American mycologist Harvey Wilson Harkness in 1899.[2] The specific epithet derives from the Latin word gibbosum meaning "humped", and refers to the irregular lobes and humps on larger specimens. T. gibbosum is part of the Gibbosum clade of the genus Tuber. Species in this clade have unusual "peculiar wall thickenings on hyphal tips emerging from the peridial surface at maturity."[1]

T. gibbosum resembles the similar species T. oregonense, and both are found growing under Douglas fir.

Fruit body


T. gibbosum is edible and can be prepared similarly to European truffles; it is typically used to add flavor to a dish.[3]

See also[edit]


  1. ^ a b c Castellanoi G, Trappe JM, Rawlinson P, Vilgalys R (2010). "Improved resolution of major clades within Tuber and taxonomy of species within the Tuber gibbosum complex". Mycologia. 102 (5): 1042–1057. doi:10.3852/09-213. PMID 20943504.
  2. ^ Phillips W, Harkness HW (1899). "Californian hypogaeous fungi". Proceedings of the California Academy of Sciences. 8. 3 (8): 241–291.
  3. ^ Volk, Tom (1997). "Tom Volk's Fungus of the Month for January 1997". Tom Volk's Fungi.

External links[edit]