Observation 198513: Botryosporium Sacc. & Marchal

Species Lists


Stacked photo (handheld) from Olympus TG3
Clumps of spores on outside of Knobby Appendages (KA)
Lance-shape heads were abundant at the ends of the pegged hyphae
Hyphae strongly septate with many side-pegs (pegs often with spores attached)
Pegged hyphae and lance-shaped head

Proposed Names

44% (3)
Recognized by sight
76% (1)
Used references: Seifert, K. A., Morgan-Jones, G., Gams, W., & Kendrick, B. (2011). The genera of Hyphomycetes. Utrecht: CBS-KNAW Fungal Biodiversity Centre.

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
for the smallest of small
By: Danny Newman (myxomop)
2015-03-10 14:10:46 CDT (-0400)

there is only one lens

By: Roo Vandegrift (Werdnus)
2015-02-12 02:04:48 CST (-0500)

A good macro is an amazing thing. I shoot with an Olympus too, but it’s an older model (e510), and I’m thinking about upgrading at some point soon, particularly after spending a season in the field with Danny Newman. The advances in DSLR in the last decade are ASTOUNDING.

By: Christian (Christian Schwarz)
2015-02-12 01:31:55 CST (-0500)

I never really was on the lookout for them before. I have to say that the camera had a lot to do with it. The TG-3 has such a strong macro mode that I’ve been paying attention to all sorts of organisms that I normally would never have been able to discern interesting features from.

Mites, spiders, isopods, etc:

(I promise I don’t work for Olympus)

No problem!
By: Roo Vandegrift (Werdnus)
2015-02-12 01:29:06 CST (-0500)

Happy to share! I’m glad y’all are interested: it’d be awesome to start seeing more hyphomycetes on MO, wouldn’t it?

Awesome indeed
By: Sava Krstic (sava)
2015-02-12 01:05:41 CST (-0500)

Christian, thank you for sharing this. And Roo, thank you for explaining the “tape lifting” method. Now I’m too looking forward to having some conidial fun.

By: Christian (Christian Schwarz)
2015-02-12 00:48:52 CST (-0500)

searches room for forgotten orange and packing tape

No problem!
By: Roo Vandegrift (Werdnus)
2015-02-12 00:20:21 CST (-0500)

That was a fun diversion!

Eh, phase contrast is over-rated anyways. You’ve got really beautifully clear photos with out it!

I think tape lifts really revolutionized my appreciation for conidial fungi like this, and it’s the easiest thing in the word: just take a tiny piece of clear tape (not the sort-of-clear scotch tape, but the glass-clear kind — I use clear packing tape) and gently stick it to the part of the fungus that’s producing conidia, then pull it away. Put the tape on your slide sticky-side-up, add a drop of your mounting fluid (I like lacto-glycerol or cotton blue, but water or whatewer will work fine too) and then your cover slip, and you’re good to go! Sometimes I flame the underside of the slide gently to get out the air bubbles, particularly if the fungus is pretty hydrophobic.

The beauty of this method is that it’s super easy to just get one layer of conidiophores, and the tape holds the spores in about the same orientation as they were attached to the conidiophore; otherwise, they float all over the place. Upped the enjoyment I got out of anamorphic fungi 10 fold when I figured out how easy it was to make good slides that way.

Try it next time you have moldy fruit or bread, I guarantee you’ll be happy you did!

Thank god
By: Christian (Christian Schwarz)
2015-02-12 00:04:42 CST (-0500)

I am only vaguely aware of what a tape lift is, and I have no phase contrast option…
Thanks for the ID, Roo!

By: Roo Vandegrift (Werdnus)
2015-02-11 23:51:50 CST (-0500)

Never mind, I figured got it! Thanks for sharing!

By: Roo Vandegrift (Werdnus)
2015-02-11 23:38:00 CST (-0500)

That is beautiful! It looks vaguely familiar, actually, but I’m having some trouble figuring out the true arrangement of the conidiophores from the photos you posted. Would you mind making another slide, but with a tape-lift? And maybe try phase-contrast for the photos, if you’ve got the option on your scope?

rick ross
By: damon brunette (damonbrunette)
2015-02-11 22:43:16 CST (-0500)

“everyday im hustlin’”

very cool!
By: Richard Sullivan (enchplant)
2015-02-11 21:23:57 CST (-0500)

You have sharp eyes!

Created: 2015-02-11 18:40:08 CST (-0500)
Last modified: 2015-02-12 00:43:18 CST (-0500)
Viewed: 156 times, last viewed: 2018-01-18 10:14:30 CST (-0500)
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