The following requests
for fungal specimens from Arizona have been made:
'Stalked Puffballs' in
the genus Tulostoma needed
Tulostoma is large and widespread genus of 'stalked puffballs'.
W.H. Long published treatments of the genus in the 1940's, which
included several species from Arizona. Jorge Wright's 1987
monograph of Tulostoma did much to clarify the taxonomy
within the genus.
Currently, we have records for 30 Tulostoma species that
occur in Arizona. I am working on a treatment of AZ members of
the genus and would like to have more Tulostoma specimens to
assist me in this effort. Who knows, we might contribute new
records for the state or possibly encounter species that are new to
science. Any specimens that YOU could contribute would be
Tulostoma fruiting bodies are terrestrial and often occur under
Mesquite, Juniper, or Pinyon in aridland desertscrub or woodlands.
The images above represent species in the genus (the specimen on the
left is ~ 4 cm tall), and all species in the group have a very
similar appearance and are roughly the same size. Please note,
characters at the base of the stem (like the mycelial 'clump'
pictured in the image on the left) are important, so it is best to
dig the fruiting bodies out of the ground rather that just pulling
Please contact Scott Bates (email@example.com)
if you would like to help in this effort or if you have Tulostoma
contribute now. THANKS!
What is Endoptychum
E. Vellinga's work sorting out Lepiotoid mushrooms and the family
Agaricaceae has produced some very interesting results. The
association of several secotioid species (basically mushrooms that
don't open the cap to expose their gills) with their mushroom
relatives have now been suggested using molecular phylogenetic
example, the genus Endoptychum is now known to be an
assemblage of species that were not all closely related.
Endoptychum agaricoides was found to be more closely related to
Chlorophyllum species (i.e., C. molybdites).
This interesting fungus now has a new name, Chlorophyllum
agaricoides. Likewise, Endoptychum depressum was
found to be more closely related to mushrooms in the genus
Agaricus and can now be called Agaricus inapertus.
One species in the genus Endoptychum is still a mystery,
Endoptychum arizonicum! The original specimen on which the
species was based was collected in Tucson in 1900, and it was named
Secotium arizonicum in 1902 by Shear & Griffiths (see the
original description below). In 1958, mycologists R. Singer
and A.H. Smith transferred this species to the genus Endoptychum.
species is not well known and fresh specimens that could be used to
extract DNA would make an excellent contribution to our
understanding of the phylogeny of
E. arizonicum. In addition to the molecular data,
specimens would contribute to descriptive work and expand our
knowledge of the distribution of this species (if it is indeed a
distinct species). Endoptychum arizonicum mainly
differs from C. agaricoides in that the former has larger
spores (7.2-12.0 x 8.5-15 micrometers) than the later (5.5-6.8 x
6.6-8.0 micrometers). The columella in C. agaricoides (upper right-hand
of image below) is also more developed than in E. arizonicum,
where it is shorter
and often 'aborted'.
Chlorophyllum agaricoides from Coker and Couch, 1928 - Plate 32)
Additional images of Chlorophyllum
agaricoides can be viewed here on the Spanish website Micologia.net:
Specimens of Endoptychum arizonicum or Chlorophyllum
agaricoides that YOU could
contribute would be greatly
appreciated! Please contact Scott Bates (firstname.lastname@example.org). THANKS!
specimens or images
Arizona Mycota Project
c/o S.T. Bates
CIRES Visiting Fellow
University of Colorado at Boulder
Rm. 318 - CIRES Bldg.
Boulder, CO 80309
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