PDD 27102 – Agaricus horakianus Callac, L. A. Parra, Raspe, Thongklang & K.D. Hyde
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 27102
Type status:
Holotype
Specimen type:
Packet
Database record added:
07 June 2001
Database record updated:
24 February 2023
Components
Primary component
Active identification
Determined name:
Agaricus bambusae Beeli var. australis Heinem.
Determiner:
Identification date:
Preferred name:
Agaricus horakianus Callac, L. A. Parra, Raspe, Thongklang & K.D. Hyde
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Agaricales
Family:
Agaricaceae
Identification type:
Determination
Type status:
Holotype
Associations:
has host Nothofagus cliffortioides
Substrate:
ground
Other components
Active identification
Determined name:
Nothofagus cliffortioides
Determiner:
Identification date:
Preferred name:
Fuscospora cliffortioides
Division:
Tracheophyta
Class:
Magnoliopsida
Order:
Fagales
Family:
Nothofagaceae
Identification type:
Determination
Present:
no
Collection events
Primary collection event
Collection event type:
Unknown
Standard locality
Location:
Te Anau, Dunton Range
Georeferences:
Latitude and Longitude (WGS84):
-45.2187 168.012
Verbatim locality:
Te Anau, Dunton Range
Verbatim collector:
E. Horak
Standardised collector:
Egon Horak
Verbatim date:
1969/03/30
Start date:
1969-03-30
Country:
New Zealand
New Zealand Area Codes:
Southland
Native lands:
Ngāi Tahu
Georeferences:
New Zealand Map Grid:
2118380E 5542500N (WGS84 -45.218734 168.011743)
Specimen notes
Public Note:
Heinemann's paper has ...
A. bambusae var. australis=PDD27106=69/194
A. viridopurpurascens=PDD27107=68/79
A. horakii=PDD27110=68/411
A. lanatoniger=PDD27111=67/225
A. purpureoniger=PDD27109=68/435
A. oligocystis=PDD27108=69/87
PDD has ...
A. bambusae var. australis=PDD27102=69/194
A. viridopurpurascens=PDD 27103=68/79
A. horakii=PDD 27106=68/411
A. lanatoniger=PDD 27107=67/225
A. purpureoniger=PDD 27105=68/435
A. oligocystis=PDD 27104=69/87(corrected from 82)
We must assume the paper has the incorrect PDD numbers.
J.A. Cooper, Apr. 2016
J.A. Cooper, Apr. 2016
Public Note:
Protologue: cap approx. 8 cm in diameter, fairly thick (7 mm at mid-radius); covering dry, small fibrillose apressed red-brown scales, appearing slightly purple on whitish background; margin clearly overhanging, irregularly appendiculate with remains of ring. Stipe Of approx. 5 cm X 5 mm, initially claviform and then cylindrcal, reaching 15 mm at the base (which is bulbous in the exsiccatum), white then Pinkish from the top which appears lustrous with white fibrils, flaky under ring, the basal flakes reddish ochre and forming one or two parallel lines around the stipe. Ring Membranous, fragile, hanging, smooth above, with fluffy ochre margin staining of ochre to the touch. Gills whitish then rose, finally chocolate brown. Flesh white or slightly pink, yellow under pileus coating, often pale orange at the base of the stipe, worm-holes ochre orange; odor weak, aniseed; sweet flavor, of walnuts. Spores very dark. Exsiccatum: cap brown to a little copper, yellowish stipe, yellowish flesh, dark brown lamellae; Efflorescences Very small and rare on the gills. KOH, HCl, NH4OH on fresh materila no reaction. Aniline x HNO3 +ve on exsciccatum.
Spores (5.7) 6.1-7.2 (7.5) X 3.8-4.6 (5.0) um, ellipsoid or barely Oval, thin-walled; Very rudimentary pore formed by a thinning of the wall. Basides 4-spored, hyaline, claviform, rather broad at the base, 22-27 X 7 um. Cellular sub-hymenium, with elements of 7-12 μm diameter. Hyaline cheilocystidia with yellow incrustation, claviform, 16-22 X 7-9 um, or more often catenulate with elements of 8-16 X 6-11 um. Pleurocystidia none. Trama of elements 10-25 um diam. Piles covering with subparallel hyphae, in fascicles, cylindracal with thin and smooth walls, 5-12 (14) um diam, often a little restricted at the septa, especially towards the extremities; fairly frequent secondary septa; a few detersile elements; vacuolar pigment, dark brown in KOH (in fresh material).
J.A. Cooper, Mar. 2017
J.A. Cooper, Mar. 2017
Public Note:
A collection with a sequence identical to the isotype of A. horakianus ZT 69/194 has micro-characters that do not match Heinemann's description. This specimen, and PDD 27106 (as A. horakii) both need micro-details checking against that paper in case there has been a collection mix-up at some point. Does this have catenate cystidia (horakianus)? Or simple cystidia (horakii). [Nov. 2017]. The spores are pale to dark and thick-walled, without germ pores, not even a wall thinning: length=6.2-7.8µm (µ=6.9, σ=0.37), width=3.8-4.9µm (µ=4.3, σ=0.27), Q=1.5-1.8µm (µ=1.61, σ=0.09), n=20. The gill edge has a sterile band of hyphae with occasional hint of a catenate cystidium but far from convincing. The dried materail agrees with the Horak photo but does not agree with images of later collections with supposedly the same sequences. Something is wrong. The writing ion a det slip within the packet does indicate 69/194=pdd27102=A. bambusae var. australis.
J.A. Cooper, Apr. 2017
J.A. Cooper, Apr. 2017
External links
Duplicates
ZT: ZT 69-194
Direction:
Received
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