PDD 29641 – Laccaria masoniae var. brevispinosa McNabb
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 29641
Type status:
Holotype
Specimen type:
Packet
Database record added:
11 April 2011
Database record updated:
24 February 2023
Components
Primary component
Active identification
Determined name:
Laccaria masoniae var. brevispinosa
Determiner:
R.F.R. McNabb
Identification date:
Preferred name:
Laccaria masoniae var. brevispinosa McNabb
Division:
Basidiomycota
Class:
Agaricomycetes
Order:
Agaricales
Family:
Hydnangiaceae
Identification type:
Determination
Type status:
Holotype
Associations:
has host Nothofagus menziesii
Substrate:
ground
Other components
Active identification
Determined name:
Nothofagus menziesii
Determiner:
Identification date:
Preferred name:
Lophozonia menziesii (Hook.f.) Heenan & Smissen
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:
Springs Junction, Lake Daniells Track
Georeferences:
Latitude and Longitude (WGS84):
-42.3943 172.257
Verbatim locality:
Lake Daniells Track
Verbatim collector:
R.F.R. McNabb
Standardised collector:
Robert F. R. McNabb
Collectors reference no.:
RFRM 70 (Laccaria)
Verbatim date:
1969/05/16
Start date:
1969-05-16
Country:
New Zealand
New Zealand Area Codes:
Buller
Native lands:
Ngāi Tahu
Ngāti Toa Rangatira
Georeferences:
New Zealand Map Grid:
2448130E 5876380N (WGS84 -42.317242 172.249452)
Specimen notes
Public Note:
[RM] As in the type variety but spores globose, subglobose, or occasionally broadly elliptical, moderately echinulate, 8.5-10.5 um diam. including spines, spines 1.2-1.5 um long. [GM] Pileipellis of interwoven
hyphae with scattered small fascicles of ± perpendicular hyphae; fascicles composed of 5- 10(-l 5) hyphae; terminal cells of fascicular hyphae (N = 10) 33-62 x 5.5-13 um, filamentous, swollen, subclavate or clavate, light yellowish brown in mass; walls up to 0.5 ixm thick, light yellowish brown; contents hyaline to moderate yellowish brown. Pileus trama tightly interwoven, morphologically undifferentiated, hyaline, light yellowish
brown toward pileipellis. Lamellar trama parallel; hyphae 2.5-7 um diam., thin-walled, hyaline to light yellowish brown; cells barrel-shaped. Subhymenium morphologically undifferentiated. Basidia (N = 15) 29-39 x 7.8-11.5 um, clavate, hyaline; sterigmata 4, up to 6.5 um long. Pleurocystidia lacking. Cheilocystidia not observed. Basidiospores (excluding ornamentation) (N = 30) 6-8.30-9.2) x 6-8.3(-8.7) um (x_= 7.5 ± 0.8 x
7.2 ± 0.7 um), Q = 1.13(-l. 16) (Q = 1.04 ± 0.05), globose to subglobose, occasionally broadly ellipsoid, hyaline, echinulate; echinulae 1.4-1.8(-2.3) um long, crowded; hilar appendix 1.3-1.8 um long, prominent, truncate; plage present; contents occasionally uniguttulate. Basal mycelium hyphae mostly 2.5-7.5(-15) um diam., morphologically undifferentiated, tightly interwoven, hyaline. COMMENTARY—Although the basidiospore shape and size fit the original circumscription, I measured the size of the ornamentation as slightly longer than McNabb ("spines 1.2-1.5 um long"). Additionally, McNabb (1972) reported the presence
of cystidia ("paraphyses numerous, simple or sparingly branched, filamentous, to 3 um diam.,sparingly branched, filamentous, to 3 um diam., projecting beyond basidia"). This discrepancy is probably due to the poor preservation of the collection. The specimens appear to have been overdried, and consequently the material did not rehydrate well. Because of PDD policy, only half of the type collection was sent on loan. Thus, the possibility exists that more variation is present in the complete type collection than is described
above. [JAC] The isotype packet examined by GM contains an inner packet labelled L. fibrillosa and not L. masoniae var brevisporina. There seems to have been a packet swap at some point. The contents look correct, macromorphologically at least. Observations here based on the other isotype packet which contains an inner packet correctly labelled (although possibly not RM's original packet). However, McNabb's handwritten note inside has an annotation as PDD29701. Serious confusion! Stipitipellis without brown content, with occasional hyaline vesicles, caulocystidial tufts not seen, clamped, appearance not wall-like. Pileus tissue disrupted and attached spores smooth (very brevisporina!). Gill tissue too disrupted to see basidia. However I suspect both are the consequence of overdrying. 4 spored. No lamellar cystidial elements seen. Gill edge concolorous. Spores length=5.7–7.6µm (µ=6.7, σ=0.54), width=5.2–6.9µm (µ=6.1, σ=0.45), Q=1.0–1.2µm (µ=1.10, σ=0.05), n=21, spines 2.3 x 1um. Spores smaller than GM and spines bigger (whatvere - certainly not brevispinose). There is insufficient available and consistent evidence to pin this one down. It is doubtless a different species and perhaps one of the L. fibrillosa-like species with beech. However the name/type are currently nom. conf.
J.A. Cooper, 2015
J.A. Cooper, 2015
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