Volk's Fungus of the Month pages
Alternatively, you can see the Fungus of the Month pages
listed alphabetically by genus
See also Holiday Fungi.
Special topics, and Fungi growing in your mulch.
For the rest of my pages on fungi, please click
Aug. 2010 Laccaria bicolor, a mutualistic fungus and
pioneer in genome sequencing. With co-author Todd Osmundson
May 2009 Geomyces destructans, a
fungus associated with bat White-Nose Syndrome (WNS). with co-authors David
Blehert, Andrea Gargas, Marie Trest, and Martha Christensen.
Yes I know I skipped a few months. They're coming soon!
Jan. 2009 Filoboletus manipularis, a
poroid mushroom from the tropics
Yes I know I skipped November and December. They're coming soon!
Oct. 2008 Sparassis crispa, the
cauliflower mushroom, a.k.a. the noodle mushroom.
Sep. 2008 Armillaria solidipes, an
older name for Armillaria ostoyae, North American Biological Species I,
NABS I, with co-author Hal Burdsall.
yes i know I skipped August. It's coming soon.
July 2008 Chlorociboria aeruginascens,
the green stain fungus, with co-author Jessie Glaeser.
June 2008 The fungus of the month is
actually three fungi from students in my Organismal Biology Class:
Psilocybe cubensis, the hallucinogenic cow patty mushroom,
Penicillium chrysogenum, source of penicillin. Aspergillus fumigatus,
cause of Aspergillosis.
May 2008 Disciotis venosa, the
veined cup fungus and a relative of the morel.
Apr, 2008 Profollias downhoki, a recently
discovered organism that is the missing link between fungi and plants!
Yes I know I skipped February and March. They will be coming later.
Jan. 2008 Craterellus tubaeformis----
Tubies, in honor of mushroom forays and fairs in California
Dec. 2007 Sistotrema confluens, an odd
tooth fungus in honor of the tercentennary of the birth of Carolus Linnaeus, the
father of modern taxonomy. with co-author Andrus Voitk.
2007 Phaeolus schweinitzii, the dye polypore or velvet top, with
coauthors Debby Hanmer and her Mycology class from fall 2007 at the University
of North Carolina Pembroke.
Oct. 2007 Rhytisma acerinum and
Rhytisma punctatum, two causes of Tar Spot of maple. with co-author Heather
Sep. 2007 Scorias spongiosa, the beech
aphid poop-eater. with co-author Hannah Reynolds
Aug. 2007 Amanita marmorata subspecies
myrtacearum, a Hawaiian mushroom in honor of Dr. Orson K. Miller, Jr., in
honor of the 2007 North American Mycological Association Orson K. Miller Jr.
NAMA foray in Pipestem, West Virginia, August 16-19, 2007.
July 2007 Crepidotus
crocophyllus, the orange crep, with co-author Jon Palmer
June 2007 Pilobolus
crystallinus (the hat thrower) Lentinula edodes (shiitake)
Gymnopilus spectabilis (the waraitake or big laughing Gym) and
Phytophthora infestans (cause of the Irish potato famine): four web pages by
students in my Organismal Biology class at the University of Wisconsin-La
Yes I know I skipped May. It's coming soon!
Apr. 2007 Blastomyces
dermatitidis, cause of Blastomycosis-- a special paper from my lab. PCR
based detection of its DNA from natural soil samples.
Mar. 2007 Sordaria fimicola,
a fungus used in genetics.
Feb. 2007 Phanerochaete
chrysosporium a crust fungus that can degrade phenolic resin plastics!
Jan. 2007 Terfezia and
Tirmania, Desert Truffles (terfez, kama, p/faqa). with co-author Elinoar
Dec. 2006 Cryptothecia
rubrocincta, the Christmas lichen
Nov. 2006 Grifola frondosa,
the hen of the woods, sheepshead or maitake
Oct. 2006 Mutinus caninus,
the dog stinkhorn, in honor of Dogtoberfest.
Sep. 2006 Entoloma abortivum,
the Aborting Entoloma, a.k.a. Hunter's Heart, Totlcoxcatl, or "ground
Aug. 2002 Xeromphalina
kauffmanii, the cross-veined troop mushroom.
Jul. 2006. Paragyrodon sphaerosporus, the
leathery-veiled bolete, an unusual fungus that we found at the NAMA foray in La
Crosse in 2005.
Jun. 2006 Cordyceps subsessilis,
aka Tolypocladium inflatum, source of the immunosuppressive drug
Cyclosporine, used for transplant patients like me to avoid rejection of the
new organ. Written by guest author Kathie Hodge.
May 2006 Cyathus striatus,
One of the bird's nest fungi
Apr. 2006 Aleurodiscus oakesii,
the oak parchment, cause of "smooth patch disease"
Mar. 2006 Pilobolus crystallinus,
the "Fung in the Dung," in honor of Dr. Seuss' birthday
Feb. 2006 Candida krusei, Geotrichum, and
Acaulospora scrobiculata, a trio of fungi needed for making chocolate for
Jan. 2006 Tremella fuciformis, the snow
fungus, an edible jelly fungus, a.k.a .the silver ear fungus, the snow ear
fungus or simply the white jelly fungus
Dec. 2005 Asterophora
lycoperdoides, the star bearing powder cap mushroom. With co-author Jon
Palmer. This marks nine years of Fungus of the month
Nov. 2005 Phellinus igniarius,
the flesh-flecked polypore, used by Native Americans, espceially Alaskans, as
Iqmik.with co-author Diane Pleninger, winner of the contest to name the Tenth
Anniversary Fungus of the Month.
Oct. 2005 Lactarius rubidus,
Sep. 2005 Mycena leaiana,
the bright orange Mycena.
Aug. 2005 Gibberella zeae
or Fusarium graminearum, head blight of wheat, with co-author Heather
July 2005 Sphaerobolus
stellatus, the cannonball fungus, in honor of "the rockets' red glare." with
co-author Laurie Leonard.
June 2005 Faerie cups, various
Ascomycota species such as Microstoma floccosum, Aleuria aurantia,
Sarcoscypha occidentalis, Geopyxis carbonaria, in honor of the summer
solstice. With co-author Rebecca Curland
May 2005 Urnula craterium,
the black tulip fungus.
Apr. 2005 Gymnopilus spectabilis,
waraitake, big laughing Gym, a hallucinogenic mushroom. with co-author Kelsea
Jewell. It's my 100th FotM!
Mar. 2005 Ganoderma lucidum,
Reishi or Ling Zhi, is a fungus used in oriental medicine. It seems to cure
everything! with co-author Kathleen Engelbrecht
Feb. 2005. This month's fungi are molds
(deuteromycetes) that are found on money! This group of fungi is dedicated to
President's Day. with co-author Jon Palmer
Jan. 2005 Paracoccidioides
brasiliensis,cause of paracoccidioidomycosis, aka South American
Blastomycosis or Brazilian Blastomycosis. with co-author Travis Mossman
Dec. 2004. Daldina concentrica,
the coal fungus, carbon balls, cramp balls, King Alfred's cakes.
Nov. 2004 Trichoderma viride,
the the dark green parasitic mold and maker of fungal-digested jeans.
Oct. 2004 Hydnum umbilicatum,
the sweet tooth mushroom -- special for Halloween
Sep. 2004 Russula emetica,
the vomiting Russula
Aug. 2004 Boletus barrowsii,
Chuck Barrows' bolete, with a celebration of amateur mycology in North America.
Jul. 2004 Suillus americanus,
the chicken fat mushroom. The "americanus" part celebrates America on her
birthday- and the page may bring back memories of a loved (or hated) childhood
Jun. 2004 Collybia tuberosa,
the mushroom-loving Collybia. It's my 90th
Fungus of the Month!
May 2004. Coprinus comatus, the shaggy
mane or lawyer's wig. One of Clyde Christensen's "Foolproof four."
Apr. 2004 Auricularia auricula-judae,
Judas' ear fungus, in honor of Easter.
Mar. 2004 Spinellus fusiger,
in honor of Albert Einstein's 125th birthday. with co-author Adam Gusse.
Feb. 2004 Phellinus tremulae, one of the
causes of heartrot, in "honor" of Valentine's Day.
Jan. 2004 Caulorhiza umbonata, the
rooting redwood mushroom.
Dec. 2003. Astraeus hygrometricus, an
earth star. Warning-- there's a 1 megabyte animated GIF file that will
automatically download. Here is an alternate page
without that file.
Nov. 2003 Penicillium chrysogenum (=P.
notatum), the source for penicillin-- making it possible to have more
veterans for Veteran's Day.
Oct. 2003. Hemitrichia serpula, the
pretzel slime mold, in honor of Oktoberfest
Sep. 2003. Gastrocybe lateritia, the
bean sprout mushroom. with co-author Heather Hallen.
Aug. 2003. Hydnellum caeruleum, the blue
and orange Hydnellum. with co-author Sean Westmoreland
July 2003. Gyroporus cyanescens, the
blueing bolete. Warning: there's a 1 megabyte MP4 movie that will automatically
load when you go to this page. If you have a slow connection, you might want to
try this alternate page without the video.
Jun. 2003. Pisolithus tinctorius, the
dog turd fungus, or dyemaker's puffball.
May 2003. Galerina autumnalis, the deadly
Apr. 2003 It's a mycological Easter egg hunt!
Mar. 2003 Marasmius oreades, the fairy
ring mushroom. It's my 75th FotM!
Feb. 2003 Sporothrix schenckii, cause of
Rose-picker's Disease, a Valentine's Day favorite
Jan. 2003 Hericium americanum, the pom
pon mushroom, a.k.a. the bear's head tooth fungus, Lion's mane, monkey head, or
for this month, the icicle mushroom. with co-author Sean Westmoreland.
Dec. 2002 Saccharomyces cerevisiae, the
bakers' and brewers' yeast. with co-author Anne Galbraith
Nov. 2002 Stachybotrys chartarum, an
alleged cause of "sick building syndrome."
Oct. 2002 Monotropa uniflora, the ghost
plant, aka Indian Pipe (just an honorary fungus)
Sep. 2002 Venturia inaequalis, cause of apple
Aug. 2002 Agaricus augustus, the Prince-- a
very august mushroom.
July 2002 Cladonia cristatella, the British
soldier lichen, with pictures from Lexington & Concord, Massachusetts.
June 2002 Mycena haematopus, the blood-foot
May 2002 Gyromitra esculenta, one of the
poisonous false morels.
Apr. 2002 Armillaria gallica, a special
web page dedicated to the tenth anniversary of the Humongous Fungus
Mar. 2002 Amanita caesarea, Caesar's
mushroom. Beware the Ides of March!
Feb. 2002 Leucocoprinus birnbaumii, aka
Lepiota lutea, the yellow houseplant mushroom.
Jan. 2002 Coccidioides immitis, cause of
the nasty fungal disease coccidioidomycosis, aka Valley Fever
Dec. 2001 Fomes fomentarius, the tinder
polypore, one of the fungi carried by the Oetzi Iceman. It's my 60th
Fungus of the month! Now you can view FIVE years' worth of fungi.
Nov. 2001 Lycoperdon pyriforme, the
pear-shaped wolf-fart puffball
Oct. 2001 Hygrocybe conica, the witch's hat
Sep. 2001 Leucopholiota decorosa, the
decorated white pholiota, a fungus that I got to help rename!
Aug. 2001 Hypomyces lactifluorum, the lobster
July 2001 Laetiporus cincinnatus, the
June 2001 Clavicorona pyxidata, the
crown-tipped coral mushroom.
May 2001 Polyporus squamosus, the dryad's
saddle or pheasant's back mushroom.
Apr. 2001 Agaricus bisporus, the pizza
mushroom, white button mushroom, portabella or crimini. With co-author Kelly
Ivors of Penn State University. Warning-- there's many more inline images on
this page than usual. It's a "supersize" FOTM.
Mar. 2001 Phytophthora infestans, a pathogen
that causes late blight of potato, which was responsible to the Irish Potato
Famine in the middle 1800's. Warning: there's a 232 kilobyte 15-second QuickTime
video that will load automatically if you have the right plugins for your
browser. If you have a slow connection this may take a while to download. Here's
an alternate page
without the video.
Feb. 2001 Climacodon septentrionale, the
northern tooth fungus. It's my 50th Fungus of the Month!
Jan. 2001 Blastomyces dermatitidis, cause of
the nasty fungal disease Blastomycosis in humans and other animals.
Dec. 2000 Cladonia rangifera, one of the
Nov. 2000 Stereum ostrea, the false turkey
Oct. 2000 Tremella mesenterica, witch's
Sep. 2000 Tricholoma magnivelare, the American
Aug. 2000 Hohenbuehelia petaloides, a fungus
that eats nematodes.
Jul. 2000 A patriotic trio of corticioid (crust)
fungi: Phlebia coccineofulva, Hyphoderma puberum, and
Jun. 2000 Lactarius indigo, the indigo milk
May 2000 Agrocybe praecox, a common spring
inhabitant of wood chips.
Apr. 2000 Xylaria polymorpha, dead man's
Mar. 2000 Entomophthora muscae, a fungus that
Feb. 2000 Schizophyllum commune, one of the
world's most widespread fungi, and possessor of more than 28,000 different
sexes. This page also includes an explanation of sex and mating types in fungi.
Jan. 2000 Histoplasma capsulatum, cause of a
lung disease called Histoplasmosis. Bob Dylan had this disease in 1997.
Dec. 1999 Amanita muscaria, the fly agaric -- a
hallucinogenic and poisonous mushroom.
Nov. 1999 Rozites caperata, the gypsy mushroom,
reported to have antiviral properties.
Oct. 1999 Claviceps purpurea, cause of the plant
disease ergot and likely factor in the Salem Witch Trials
Sep. 1999 Cortinarius semisanguineus, a
beautiful mycorrhizal mushroom used for dyeing wool.
Aug. 1999 Chlorophyllum molybdites, the green
spored Lepiota, the most common cause of mushroom poisoning in North
Jul. 1999 Dictyophora duplicata, the netted
stinkhorn. Click here if you have "something that
looks like an upside down carrot" or "part of a male dog's anatomy" growing in
your bark mulch. (I get at least 5 emails per month on this in the summer). Then
scroll down to the bottom of the page.
Jun. 1999 Fuligo septica, the dog vomit slime
May 1999 Gymnosporangium juniperi-virginianae,
cause of cedar-apple rust.
Apr. 1999 Scutellinia scutellata, the eyelash
Mar. 1999 Ganoderma applanatum, the artist's
Feb. 1999 Armillaria nabsnona, Honey mushroom
number nine. Or you can jump right to this page,
which is an online version of the original paper by Volk, Burdsall, and Banik
describing this species.
Jan. 1999 Candida albicans, cause of most yeast
infections in humans.
Dec. 1998 Fungi that are necessary for a merry
Nov. 1998 Clitocybe nuda, the wood blewit.
Oct. 1998 Pleurotus ostreatus, the oyster
Sep. 1998 Boletus edulis, the king bolete,
steinpilz, cép, or porcino (plural porcini).
Aug. 1998 Calvatia gigantea, the giant puffball.
Jul. 1998 Craterellus fallax, the black trumpet
Jun. 1998 Pluteus cervinus, the deer mushroom.
May 1998 Cryphonectria parasitica, causal agent
of chestnut blight.
Apr. 1998 Sarcoscypha coccinea, the scarlet cup
Mar. 1998 Ustilago maydis-- that's right it's
"Smuts on the Internet."
Feb. 1998 Epidermophyton floccosum, one of the
causes of athlete's foot.
Jan. 1998 Cordyceps ophioglossoides, a pathogen
of an underground fungus.
Dec. 1997 Fungi that are necessary for a Merry
Nov. 1997 Powdery Mildews, plant parasites.
Oct. 1997 The Jack-O-Lantern Mushroom, Omphalotus
Sep. 1997 The death angel, Amanita bisporigera,
Amanita virosa, and Amanita verna.
Aug.1997 Trametes versicolor, the turkey tail
Jul. 1997 Cantharellus cibarius, the
Jun. 1997 Bridgeoporus nobilissimus, the giant,
rare, and endangered polypore of the Pacific Northwest. Or you can jump right to
this page, which is a reprint of a paper by Burdsall, Volk, and Ammirati
called "Bridgeoporus, a new genus to accommodate Oxyporus nobilissimus."
May 1997 Phanerochaete chrysosporium, a
corticioid fungus useful in biopulping and bioremediation.
Apr. 1997 It's the
morel! Morchella species.
Mar. 1997 Flammulina velutipes, the velvet
stem, or enokitake.
Feb. 1997 Aspergillus, a deuteromycete useful in
industrial mycology-- and also a human pathogen.
Jan. 1997 Tuber gibbosum, the Oregon white
Fungi that are necessary for a merry Christmas
Fungal Diseases that must be overcome to have a
traditional Thanksgiving Dinner.
For the rest of my pages on fungi, please click
This page and other pages are © Copyright 1995-2008 by Thomas J. Volk.
It would be great to hear from you. Let me know what you think about these
or you can write to my snailmail address at:
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Professor of Biology (00000)
3024 Cowley Hall (00000)
University of Wisconsin-La Crosse (00000)
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