Observation 215089: Marasmiellus Murrill
When: 2015-08-26
(21.4501° -158.0299° 212m)
No herbarium specimen

Notes: Several small white to pale yellow mushrooms. Caps white, translucent toward margin, sometimes pale yellow toward center, smooth (translucence allows ribbed appearance–gills show through), flat to slightly sunken, margin concave nearest stem, 18 × 14 mm. Stem off center (eccentric), equal, curved, length 10 mm, diameter 2 mm. Gills white, distant, descending. (Measurements are for largest individual, which was collected for closer observation and imaging.) Observed growing from the side (and underside) of a dead palm frond in a suburban neighborhood on a mesic, tropical, insular lowland plateau. Visually similar to images of Hemimycena tortuosa (P. D. Orton) Redhead on p. 107 of Mushrooms of Hawaii, Hemmes and Desjardin, 2002, but these are more likely Marasmiellus sp.

Images

552889
Side view. Bright sun bleached out most detail.
552890
Overhead view.
552891
Side view. Illustrates attachment. Bright sun bleached out other details.
552892
Collected individual; focus on cap.
552893
Collected individual. Focus on gills.

Comments

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Danny
By: Allen Hoof (allenhoof)
2016-01-24 19:31:18 EST (-0500)

“. . . there is a shortage . . .” I understand, from personal experience in other contexts. Generalizing, perhaps cynically, there always seems to be a shortage of the talent and resources needed to make timely progress.

Allen
By: Danny Newman (myxomop)
2016-01-24 19:04:59 EST (-0500)

not to worry. one of the problems for new users is having no way to distinguish between more and less knowledgeable users and the quality of their content. I have advocated for changes to the site to remedy this, but there is a shortage of developers and a surplus of developing to be done.

Danny
By: Allen Hoof (allenhoof)
2016-01-23 15:17:33 EST (-0500)

Thanks for the insight. Inasmuch as I have no formal training, and little experience, in mycology, I know very little about the discipline, despite the educational nature of MO. In any discipline in which I lack standing, my tendency as a layman is to defer to authority. However, because I lack standing, that tendency can result in misplaced confidence in the authority of received opinion. Put another way, by deferring to everyone who appears qualified to speak with authority on any topic, I will unfortunately but necessarily defer to hacks or charlatans posing as authorities.

Allen
By: Danny Newman (myxomop)
2016-01-23 11:04:56 EST (-0500)

Alain is not an authority. His IDs are notoriously terrible throughout the site. He seized upon the name Marasmiellus inoderma years ago and has indiscriminately applied it to lots of different saprotrophic, white, stipitate, gilled fungi from across the world, in direct opposition to the word of a world authority on Marasmiaceae, Dr. Dennis Desjardin, who states that microscopy is required to distinguish between several macromorphologically similar species.

It is known in Hawaii. An all the sud paciphic.
By: GALL Alain (GALLA-TAHITI)
2015-09-05 02:25:47 EDT (-0400)

For Hawaii open: http://hawaiiplantdisease.net/Banana-diseases.php,
go to: Marasmiellus rot (fungal, Marasmiellus inoderma):

Mycelium and mycelial fans on banana pseudostem under leaf sheaths 1 2 3 | Internal pseudostem necrosis 1 2 3 4 5 6 7 8 9 | Lumpy, malformed fruit 1 2 3 | Petiole necrosis, mycelium, and choke throat 1 2 3 | Dying banana plant 1 2 | Fruiting bodies of Marasmiellus inoderma on banana pseudostems 1 2 3 4 5 |

and open the blues links.

See also: https://www.google.fr/....

First observation in Hawaii?
By: Allen Hoof (allenhoof)
2015-09-04 20:15:49 EDT (-0400)

I don’t know the totality of literature to search, nor which bibliographies, so I can’t claim to have been thorough, but I can’t find another report of this species in Hawaii.

Created: 2015-09-02 17:26:13 EDT (-0400)
Last modified: 2016-01-24 19:35:42 EST (-0500)
Viewed: 127 times, last viewed: 2016-10-25 10:00:31 EDT (-0400)
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