Friday, April 19, 2013

Fungal Word Friday: Capillitium

Capillitium are sterile filaments found among the spores of some Myxostelida and gasteromycetes.

Capillitia and spores of Lycoperdon echinatum

Photo Cred: By Ron Pastorino (Ronpast) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Friday, April 12, 2013

Fungal Word Friday: Dolipore Septum

We have talked about the septum before, a divider that grows within the hyphae of several filamentous fungi. But today I bring you a specific type of septum, the dolipore septum.
 
Dolipore Septum
This septum is found in basidiomycetes and the first thing you can tell by its name is that it has a pore, which means it is a partial septum. But what makes it unique is that at the end of each side (near the pore) the septum is swollen, this creates an elongated channel out of the typical pore opening.

So, in a simple one sentence definition:  A dolipore septum is a septum, charataristic of basidiomycetes, that enlarges near the pore in order to form an elongate channel.



Photo cred: Merideth Blackwell of Ball State University http://www.bsu.edu/classes/ruch/msa/blackwell/9-33.jpg

Monday, April 1, 2013

First Monday Mushroom: Yellow morel

Well here we are again for another bright new month. You know what that means, don't ya? First Monday Mushroom!
And sticking with the little post of videos I gave you last week, talking about Spring and morels, I figured I better stay with it. So here you are, the golden beauty everybody will soon be after.:
Yellow morel:  Morchella esculenta

Now for the identification key this month we turn to our old familiar friend, MushroomExpert.com

Mushroom expert breaks down its keys into two sections: the Key to major groups, followed by the keys of each of those groups. Here is the path leading us to our tasty friend above:




1. Mushroom growing on other mushrooms or the decayed remains of other mushrooms.               Mycotrophs
1. Mushroom not growing on other mushrooms.          2
2. Mushroom with gills on its underside.   3
2. Gills absent. 5
3. Growing shelflike on wood (or, if not, then gills concentric rather than radial); mushroom very tough and leathery, corky, or woody (try tearing it in half); gills tough and hard, sometimes maze-like; cap frequently (but not always) with concentric zones of color.      Polypores
3. Not completely as above.             4
4. Gills running down the stem, not platelike and thus not easily separable from the cap and stem (try removing an entire "gill" with your fingers or a sharp object); mushroom usually not growing on wood.   Chanterelles and Trumpets
4. Gills not as above; mushroom growing on wood or elsewhere.       Gilled Mushrooms
5. Mushroom with pores on its underside (they may be very tiny; use a hand lens if unsure).     6
5. Pores absent.          9
6. Stem absent--or, if present, lateral.           Polypores
6. Stem present and central.             7
7. Flesh in stem tough.         Polypores
7. Flesh in stem soft.            8
8. Cap round in outline; pore surface not running down the stem, or only slightly running down the stem; spore print not white.     Boletes
8. Cap round to irregular in outline; pore surface running down the stem; spore print white.               Polypores
9. Mushroom with spines or "teeth"--either on the underside of a cap, or hanging from a branched structure, or clumped together in an indistinct mass.       Toothed Mushrooms
9. Spines or teeth absent.    10

10. Mushroom covered in some part with a foul-smelling slime; arising from a soft underground "egg"; variously shaped (like a club or stick, like crab claws, like a lantern, like a Wiffle ball, etc.); frequently found in urban settings, but also found in woods.           Stinkhorns
10. Not as above.          11

11. Mushroom shaped like a cup, a saucer, a goblet, a standing rabbit ear, a bowl, (etc.), with or without a stem. 12
11. Mushroom not shaped as above.          13

12. Goblet or cup with tiny "eggs" inside; mushroom very small.            Bird's Nest Fungi
12. Eggs absent; mushroom variously sized.   Cup Fungi

13. Mushroom more or less shaped like a ball, or like a ball raised up on a stem, or like a ball set on a starfish.      Puffballs
13. Not as above.          14
14. Mushroom with a clearly defined, more or less central stem that is separate from a clearly defined cap.    15
14. Mushroom without a clearly defined cap and stem.            19

15. Cap shape convex to centrally depressed or vase-shaped; undersurface smooth, wrinkled, or gill-like; rarely fruiting in spring except in warm coastal areas.        Chanterelles & Trumpets
15. Cap shape oval, pointed, lobed, saddle-shaped, irregular, or thimble-like (never vase-shaped or convex); undersurface absent, or hard to see or define; many (but definitely not all) species fruiting in spring.      16

16. Stem completely hollow, or hollow with cottony fibers inside; cap with pits and ridges, or longitudinally wrinkled, or fairly smooth (never lobed or convoluted); without reddish or reddish brown shades; found in spring.            True Morels & Verpas



 
Now for the specifics

1. Cap attached to the stem only at the very top, hanging like a thimble on the end of a pencil (slice the mushroom in half to view it in cross-section); mushroom essentially hollow, but often containing wispy, cotton-candy-like fibers inside. 2
1. Cap more or less fully attached to the stem--or attached about halfway down; mushroom essentially hollow, the interior lacking wispy, cotton-candy-like fibers.    3

2. Cap smooth or with vague, irregular wrinkles; mushroom small to medium in size (3-11 cm tall) when mature; asci 8-spored; spores 21-26 µ long.               Verpa conica
2.  Cap deeply and prominently wrinkled; mushroom sometimes larger than above when mature; asci 2-spored; spores 54-80 µ long.           Verpa bohemica

3. Cap attached to the stem roughly halfway up, with a substantial portion hanging "free"; mature stem often long in proportion to cap; stem often fragile.   4
3. Cap more or less completely attached to the stem--with, at most, a shallow rim at the point of attachment; mature stem proportionally long or not; stem fragile or not.   5

4. Appearing in western North America under black cottonwoods in riverine ecosystems.               Morchella populiphila
4. Appearing east of the Rocky Mountains under various hardwoods, in various ecosystems.               Morchella punctipes

5. Appearing in landscaping settings, primarily along the West Coast in winter and spring but also very rarely in midwestern and eastern North America in fall or spring.          6
5. Appearing in natural ecosystems.         8

6. Young cap usually distinctively pointed; young pits dark, contrasting with pale ridges; young surfaces bruising reddish orange to salmon; mature pits and ridges dull yellow.        Morchella rufobrunnea
6. Not completely as above.             7

7. Mature ridges dark brown to black; mature pits brownish; pits and ridges elaborately developed in laddered vertical channels.  Morchella importuna
7. Not completely as above.            8

8. Ridges (ignore the pits) dark gray to brown or black when young, or pale when young and darkening to brown or black with maturity.            9
8. Ridges pale yellowish or pale brownish throughout development.        15

9. Appearing in conifer burn sites in western North America (or, rarely, in jack pine burn sites above the Great Lakes), usually within a year or two of the fire.     10
9. Not found in conifer burn sites; variously distributed.         12

10. Surfaces densely and conspicuously velvety, especially when young; cap and stem usually dark gray to black but sometimes becoming pale in direct sunlight at high elevations; projecting hairs (120-250+ µ) present, brown in KOH.   Morchella tomentosa
10. Surfaces bald or very finely velvety with a lens; projecting hairs lacking.      11

11. Stem often chambered and layered internally; elements on sterile ridges primarily capitate (often strikingly so).         Morchella capitata
11. Stem usually not as above; elements on sterile ridges variously shaped but not usually capitate. Note: Morchella sextelata and Morchella septimelata cannot be separated morphologically.
Morchella sextelata and
Morchella septimelata

12. Found from the Rocky Mountains westward.         13
12. Found from the Great Plains eastward.     14

13. Mature stem usually strikingly ridged and pocketed; ridges on cap pale yellowish when young.               Morchella snyderi
13. Stem not usually strikingly ridged and pocketed; ridges on cap dark brown to black when young.   Morchella brunnea

14. Appearing from roughly 44° N latitude northward; mushroom 4-7 cm high at maturity; spores usually 20-22 µ long.       Morchella septentrionalis
14. Widely distributed east of the Great plains; mushroom 5-14+ cm high at maturity; spores usually 22-27 µ long.       Morchella angusticeps

15. Found in conifer burn sites in western North America; cap and stem conspicuously velvety when young; projecting hairs (120-250+ µ) present, brown in KOH. Note: This species is usually dark gray to black but can sometimes fade in direct sunlight at high elevations. Morchella tomentosa
15. Ecosystem varying; cap and stem not velvety; projecting hairs absent.            16

16. Cap usually conic or nearly so; cap attached to the stem with a small but noticeable groove or sinus (reminiscent of a race track for ants).            17
16. Cap conic or not; cap attached to the stem directly, without a groove. 18

17. Mature stem usually strikingly ridged and pocketed; ridges on cap usually darkening with maturity or when dried.  Morchella snyderi
17. Mature stem not strikingly ridged and pocketed; ridges on cap not darkening with maturity or when dried.         Morchella frustrata

18. Mature mushrooms small to medium in size (3-12 cm high); pits and ridges primarily vertically arranged; distributed east of the Great Plains.       19
18. Mature mushrooms medium sized to large (5-22+ cm high); pits more randomly arranged; variously distributed.     20

19. Cap usually egg-shaped, with a rounded or bluntly conic apex; mature mushroom 5-13 cm high; southeastern in distribution; possibly limited to association with tulip trees.    Morchella virginiana
19. Cap usually pointed; mature mushroom 3-9 cm high; widely distributed east of the Great Plains and south of the Great Lakes; associated with various hardwoods, including tulip trees, green ash, white ash, and others.  Morchella diminutiva

20. Pits and ridges contorted, asymmetrical, and irregular; ridges often remaining flattened or widely rounded into maturity; often (but not always) found in sandy soil near lakes and rivers.               Morchella prava
20. Pits and ridges not as above; ecology varying.          21

21. Distributed in the Great Lakes region from Ontario to Illinois and Virginia; morphologically inseparable from Morchella esculentoides.      Morchella cryptica
21. Widely distributed in North America; morphologically inseparable from Morchella cryptica.        Morchella esculentoides

There you have it. I've given you video's of how to find them, and a handy identification guide. Go out there and hunt some yellow morels.


Photo cred: Me


Friday, March 29, 2013

Fungal Word Friday: Tinea

Well, since last weeks Fungal Word Friday was dermatophyte, I thought that it only fair to make this one the result of that one. Also known as dermatophytosis, or ringworm, tinea is a skin infection by fungus.
If you read about fungal infections you will see things like, "Tinea barbae, Tinea  capitis, Tinea pedis, or Tinea cruris." These may sound like they are different species, and you know what... maybe they are. But that isn't what those different names mean. As I said, tinea means fungal infection; and the second word in each of those terms actually indicates the area of the infection.
So Tinea barbae means Fungal Infection of the beard area:


Tinea capitis means Fungal Infection of the Cap(head):
   
Tinea pedis, you guessed it, fungal infection of the pedal, or foot:
  

And Tinea cruris... That one is a fungus on the Crotch:


  
All of these infections could be different dermatophytes, or they could be the same species, without microscopic details it is impossible to tell. But, to avoid colloquial diagnosis such as jock's itch, or athlete's foot, or even the completely misnamed ringworm(It isn't a worm!) a simple system of "Tinea" and "Body part" can tell us what and where of an infection, no matter what part of the world we are in.




Photo Creds:

Tinea Barbae-  CDC Creation Date: 1975
Tinea capitis- By Rotatebot [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0-2.5-2.0-1.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Tinea Pedis- By James Heilman, MD (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
Tinea cruris- By Robertgascoign (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

Wednesday, March 27, 2013

Pleomorphic Programming: Nothing Quite Like a Morel


So, here we are: winter in Kansas is finally dying down, and the warmer spring weather is bringing the need to venture outdoors. Why? Morels of course!
I know that I try to share scientific papers, but deep down I can't imagine a mycologist that doesn't want to get out in the trees and find mushrooms. But if, for some crazy reason , you are not geared up and ready to go... Let me share some videos of morel hunting.





Hopefully you are excited now. Get out there, Harvest responsibly and have a good time... And if your still not ready, I give you one last video:


Mmmmmmmm. Can't you just taste them?

Friday, March 22, 2013

Fungal Word Friday: Dermatophyte

A dermatophyte is a fungus with the ability to utilize keratin; which allows it to infect hair, skin, and nails. While there are a large number of dermatophytes, they mostly fall into a few genera; including Microsporum, Trichophyton, and Epidermophyton.


Mycrosporum gypseum
Trychophyton rubrum

Epidermophyton floccosum
Basically, what this means is: next time you or a loved one have ringworm, or jock itch, or athlete's foot... take a gander at those culprits above; because if it isn't one of them, it looks a whole lot like them.

 

Photo Creds: Microsporum gypseum By Microrao (Own work) [Public domain], via Wikimedia Commons;Trychophyton rubrum By Photo Credit: Content Providers(s): CDC/Dr. Libero Ajello [Public domain], via Wikimedia Commons; Epidermophyton floccosum By MarcoTolo at en.wikipedia [Public domain], from Wikimedia Commons

Tuesday, March 19, 2013

Tuesday Treat: Anna McHugh on YouTube

Today I want you to take an hour and go watch this YouTube video. It is a fun Speech by Anna McHugh regaling us with interviews of mushroom lovers.


Enjoy it :-) and go check out more of Anna's work at Crazy About Mushrooms