Mushroom Observer: Observation 100117: Agaricaceae Chevall.

Observation 100117: Agaricaceae Chevall.

When: 2012-07-12

Collection location: Santa Rita, La Chorrera District, Panama Province, Panama [Click for map]

Who: Eduardo A. Esquivel Rios (Eduardo27)

No specimen available

About Agaricaceae Chevall.

MyCoPortal

Mycobank

Species Lists

Neotropical Fungi

Yellow-Gilled and/or Blue/Green Staining Lepiotaceous Fungi

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Proposed Names	User	Community Vote
*Lepiota sulphureocyanescens*	myxomop	28% (1)
Recognized by sight: yellow-fleshed, blue staining, reported from Colombia and US Virgin Islands. Used references: Akers, Brian P., Sherri A. Angels & James W. Kimbrough. “Leucoagaricus viridiflavoides, a new species from Florida, with notes on related taxa.” Mycotaxon 76: 39-50. 2000. Based on microscopic features: should have “basally truncate, spurred basidiospores which lack an apical pore. In addition, it lacks pleurocystidia, and has clamp connections…”
*Leucoagaricus viridiflavoides* B.P. Akers & Angels	myxomop	30% (2)
Recognized by sight: yellow-fleshed, blue-staining, reported from Florida. Used references: Akers, Brian P., Sherri A. Angels & James W. Kimbrough. “Leucoagaricus viridiflavoides, a new species from Florida, with notes on related taxa.” Mycotaxon 76: 39-50. 2000. Based on microscopic features: “Basidiospores 5.3-11(-13) x 3.4-5.1(-6) um (Q = 1.81); ellipsoidal to ovoid to amygdaliform to arachiform (”peanut-shaped"), smooth, hilar appendix prominent, wall thick (0.5 um)… Cheilocystidia 29-51 × 7-13.2 um, abundant, clavate to slightly ventricose or more often ventricose-rostrate with a well-developed apical appendage… walls smooth, thin; pale ripe black olive in water, hyaline in KOH. Pleurocystidia 27.5-36 × 6.2-18 um, scattered, narrowly to stoutly clavate with apical appendage papillate to articulated, short-rostrate; walls smooth, thin; hyaline in KOH."
*Leucocoprinus sulphurellus* Pegler	convallaria	27% (1)
Recognized by sight: reported from Brazil, Colombia, Bolivia and the Antilles. Yellow overall, bruising blue-green. Ring should be fragile. Used references: http://dx.doi.org/10.1590/S0102-33062008000100026 , transferred to Leucoagaricus in the Akers et al. paper Observation 92297 Based on microscopic features: “Basidiospores 6.2-7.2Ã3.7-5 Âµm, ellipsoid in side view, dextrinoid, metachromatic, smooth, with small germ pore, thick-walled, hyaline. .. Pleurocystidia 3050(-62)Ã8-12(-15) Âµm, fusoid-mucronate, thin-walled, hyaline. Cheilocystidia 23-37Ã8-12 Âµm, inflated-clavate to occasionally fusoid, with sub mucronate to mucronate apex, thin-walled, hyaline.”
*Agaricaceae* Chevall.	myxomop	57% (1)
Recognized by sight

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= Observer’s choice

= Current consensus

Proposed Names

Lepiota sulphureocyanescens

myxomop

28% (1)

Recognized by sight: yellow-fleshed, blue staining, reported from Colombia and US Virgin Islands.

Used references: Akers, Brian P., Sherri A. Angels & James W. Kimbrough. “Leucoagaricus viridiflavoides, a new species from Florida, with notes on related taxa.” Mycotaxon 76: 39-50. 2000.

Based on microscopic features: should have “basally truncate, spurred basidiospores which lack an apical pore. In addition, it lacks pleurocystidia, and has clamp connections…”

Leucoagaricus viridiflavoides B.P. Akers & Angels

myxomop

30% (2)

Recognized by sight: yellow-fleshed, blue-staining, reported from Florida.

Used references: Akers, Brian P., Sherri A. Angels & James W. Kimbrough. “Leucoagaricus viridiflavoides, a new species from Florida, with notes on related taxa.” Mycotaxon 76: 39-50. 2000.

Based on microscopic features: “Basidiospores 5.3-11(-13) x 3.4-5.1(-6) um (Q = 1.81); ellipsoidal to ovoid to amygdaliform to arachiform (”peanut-shaped"), smooth, hilar appendix prominent, wall thick (0.5 um)… Cheilocystidia 29-51 × 7-13.2 um, abundant, clavate to slightly ventricose or more often ventricose-rostrate with a well-developed apical appendage… walls smooth, thin; pale ripe black olive in water, hyaline in KOH. Pleurocystidia 27.5-36 × 6.2-18 um, scattered, narrowly to stoutly clavate with apical appendage papillate to articulated, short-rostrate; walls smooth, thin; hyaline in KOH."

Leucocoprinus sulphurellus Pegler

convallaria

27% (1)

Recognized by sight: reported from Brazil, Colombia, Bolivia and the Antilles. Yellow overall, bruising blue-green. Ring should be fragile.

Used references: http://dx.doi.org/10.1590/S0102-33062008000100026 , transferred to Leucoagaricus in the Akers et al. paper
Observation 92297

Based on microscopic features: “Basidiospores 6.2-7.2Ã3.7-5 Âµm, ellipsoid in side view, dextrinoid, metachromatic, smooth, with small germ pore, thick-walled, hyaline. .. Pleurocystidia 3050(-62)Ã8-12(-15) Âµm, fusoid-mucronate, thin-walled, hyaline. Cheilocystidia 23-37Ã8-12 Âµm, inflated-clavate to occasionally fusoid, with sub mucronate to mucronate apex, thin-walled, hyaline.”

Agaricaceae Chevall.

myxomop

57% (1)

Recognized by sight

Propose Another Name

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

= Observer’s choice

= Current consensus

User’s votes are weighted by their contribution to the site (log10 contribution). In addition, the user who created the observation gets an extra vote.

Vote

Score

Weight

Users

I’d Call It That

3.0

0.00

Promising

2.0

0.00

Could Be

1.0

5.61

(myxomop)

Doubtful

-1.0

0.00

Not Likely

-2.0

0.00

As If!

-3.0

0.00

Overall Score
sum(score * weight) /
(total weight + 1)

0.85

28.29%

User’s votes are weighted by their contribution to the site (log10 contribution). In addition, the user who created the observation gets an extra vote.

Vote

Score

Weight

Users

I’d Call It That

3.0

0.00

Promising

2.0

0.00

Could Be

1.0

10.15

(myxomop,convallaria)

Doubtful

-1.0

0.00

Not Likely

-2.0

0.00

As If!

-3.0

0.00

Overall Score
sum(score * weight) /
(total weight + 1)

0.91

30.34%

User’s votes are weighted by their contribution to the site (log10 contribution). In addition, the user who created the observation gets an extra vote.

Vote

Score

Weight

Users

I’d Call It That

3.0

0.00

Promising

2.0

0.00

Could Be

1.0

4.53

(convallaria)

Doubtful

-1.0

0.00

Not Likely

-2.0

0.00

As If!

-3.0

0.00

Overall Score
sum(score * weight) /
(total weight + 1)

0.82

27.31%

User’s votes are weighted by their contribution to the site (log10 contribution). In addition, the user who created the observation gets an extra vote.

Vote

Score

Weight

Users

I’d Call It That

3.0

0.00

Promising

2.0

5.61

(myxomop)

Could Be

1.0

0.00

Doubtful

-1.0

0.00

Not Likely

-2.0

0.00

As If!

-3.0

0.00

Overall Score
sum(score * weight) /
(total weight + 1)

1.70

56.59%

Comments

Add Comment

Eduardo

By: Danny Newman (myxomop)

2012-07-13 06:02:31 AEST (+1000)

there appear to be very few Lepiota s.l. with yellow flesh that stain blue. Knowing microcharacters and the color of the context will help narrow the few known possibilities down.

Created: 2012-07-13 04:38:00 AEST (+1000)
Last modified: 2013-06-30 05:08:58 AEST (+1000)
Viewed: 131 times, last viewed: 2017-11-27 15:49:27 AEDT (+1100)
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