Pholiotina sulcata?

[SheffieldLass]

I found quite a few of these little brown jobs in August last year, on an upland unimproved Hygrocybe-rich sheep pasture. As I remember they all looked like this, a bit dry and cracked and wrinkled. Stem with slight bulb at the base. I had filed them under unidentified Galerina. It was only in the run-around this week in trying to get to get to an id of Pholiotina aporos that I realised these were probably also Pholiotina.

Using Funga Nordica and FAN 6 these seem to key out as Pholiotina sulcata (or Conocybe plicatella as we still call it in Britain according to the BMS checklist, though it is down as two separate things in the BMS records ...).



Spores with pores (though not particularly pronounced), (7.7) 8.3-9.7 (10.7) x (3.9) 4.5-5.4 (5.7)um, Qav = 1.8


Cheilocystidia 24-35 X 6-9.3um

Caulocystidia

Pileipellis
.

As there are only 2 records for P sulcata in Britain, and only 44 for Conocybe plicatella, am I barking up the wrong tree? It wouldn't be the first time . I did keep dried material, just checked and there are two I collected and dried.

Cheers
Melanie

[Chris Yeates]

hi Melanie

why Pholiotina? I can't see any veil - was there veil on the cap margin - there certainly isn't any visible on the stem . . .

a rather dried out Conocybe to me

best

Chris

[SheffieldLass]

Originally Posted by Chris Yeates

hi Melanie

why Pholiotina? I can't see any veil - was there veil on the cap margin - there certainly isn't any visible on the stem . . .

a rather dried out Conocybe to me

best

Chris

Glad you didn't see the veil, Pholiotina sulcata doesn't have one, according to FAN and FN ....

cheers
Melanie

[SheffieldLass]

Just done a search as none of my literature shows an actual photograph. These two photos look very like mine:
Under the new name is this one:
Gold-Mistpilz (Bolbitius titubans) - www.natur-in-nrw.de

Under the old name Conocybe plicatella.
Fungus Gallery :: Conocybe :: NIKB2661

Which looks very promising.

Melanie

[Chris Yeates]

Originally Posted by SheffieldLass

Glad you didn't see the veil, Pholiotina sulcata doesn't have one, according to FAN and FN ....

cheers
Melanie

hi

yes I agree your fungus does bear a strong resemblance . . . . . I was beginning to despair that my championing of Pholiotina was mistaken when veil-less beasts like this are allowed into it when I notice that Index Fungorum (which one must remember is primarily nomenclatural, not taxonomic) has it as Galerella plicatella (Peck) Singer

British Fungus Flora Vol. 3 p84 lists it under Conocybe, Subgenus III Galerella, Stirps 18 Plicatella (the only member) and comments:

"HABITAT on lawns, in gardens and parks especially after summer rains. Not common and possibly southern in distribution. Although recent collections have been made since it was described from Tunbridge Wells, Kent and Hampshire in 1925 it has not turned out to be widespread.
This taxon is easily recognised in the field by the plicate-striate cap and white, pubescent stem with small basal bulb. Microscopically it is distinguished by the distinctive marginal cystidia. A two-spored form has been recorded in the literature with slightly larger spores but awaits further investigation.
The viscid plicate cap may lead one to look for this taxon in Bolbitius where Ricken (Die Blatterpilze: 69, 1915) placed it under the name B. luteolus Lasch.
This taxon is the type of the genus Galerella; Moser (in Gams Kleine Kryptogamerflora 3rd edition: 282, 1978) recognises within the genus a second taxon, Galerella conocephala, which should be looked for in Britain. It differs in its darker gills, red-brown cap and larger spores (10-11/7-8 microns)."

hope that helps (but bet it doesn't )

C

[SheffieldLass]

Originally Posted by Chris Yeates

hi

yes I agree your fungus does bear a strong resemblance . . . . . I was beginning to despair that my championing of Pholiotina was mistaken when veil-less beasts like this are allowed into it when I notice that Index Fungorum (which one must remember is primarily nomenclatural, not taxonomic) has it as Galerella plicatella (Peck) Singer

British Fungus Flora Vol. 3 p84 lists it under Conocybe, Subgenus III Galerella, Stirps 18 Plicatella (the only member) and comments:

"HABITAT on lawns, in gardens and parks especially after summer rains. Not common and possibly southern in distribution. Although recent collections have been made since it was described from Tunbridge Wells, Kent and Hampshire in 1925 it has not turned out to be widespread.
This taxon is easily recognised in the field by the plicate-striate cap and white, pubescent stem with small basal bulb. Microscopically it is distinguished by the distinctive marginal cystidia. A two-spored form has been recorded in the literature with slightly larger spores but awaits further investigation.
The viscid plicate cap may lead one to look for this taxon in Bolbitius where Ricken (Die Blatterpilze: 69, 1915) placed it under the name B. luteolus Lasch.
This taxon is the type of the genus Galerella; Moser (in Gams Kleine Kryptogamerflora 3rd edition: 282, 1978) recognises within the genus a second taxon, Galerella conocephala, which should be looked for in Britain. It differs in its darker gills, red-brown cap and larger spores (10-11/7-8 microns)."

hope that helps (but bet it doesn't )

C

Just when you thought you might be getting your feet back onto solid ground .... According to Persoonia 18-2 (abstract)...

"Notulae ad floram agaricinam neerlandicam – XLI. Conocybe and PholiotinaEef Arnolds & Anton Hausknecht
.... The species, known in Europe under the name of Conocybe plicatella or Galerella plicatella, appears to be different from the original description of Agaricus plicatellus from North America and to belong to the genus Pholiotina. The new name Pholiotina sulcata is introduced."

And this was from a study of Conocybe in Asia (where would we be without the internet ....)
"Galerella plicatella (Peck) Singer was reported by Nezdojminogo (1973) and by Petrov (1991) from Russia, Pribajkal’ye, by Batyrova (1985) from Turkmenistan, and by Melik-Khachatryan et al. (1985) from Georgia. In the interpretation of this taxon up to 2003 these collections represent probably Pholiotina sulcata Arnolds & Hauskn. (Arnolds & Hausknecht, 2003).
The true Galerella plicatella as described from North America has a more southern distribution and was found only once in Europe, in Italy (Hausknecht & Contu, 2003)"

Originally Posted by Chris Yeates

. . . . . I was beginning to despair that my championing of Pholiotina was mistaken when veil-less beasts like this are allowed into it ....

One thing I've noticed that seems to separate Conocybe from Pholiotina (at least in Funga Nordica and FAN) is the shape of the cheilocystidia - all those in Conocybe seem to have the very classic shape with the tiny neck and spherical bobble on the top, whereas the cheilocystidia of the Pholiotina are more like the Galerina ones (they're the Conocybe that have not been down to the gym keeping themselves in shape ) ... with one exception, Pholiotina brunnea is very like the typical Conocybe. (there always has to be one ...)

Cheers
Melanie