PDD 111222 – Lachnopsis sp. "dark hymenial hairs" P.R. Johnst.
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 111222
Specimen type:
Packet
Database record added:
03 October 2017
Database record updated:
18 June 2022
Components
Primary component
Active identification
Determined name:
Lachnopsis sp. "dark hymenial hairs" P.R. Johnst.
Determiner:
P.R. Johnston
Identification date:
2019-07 (Verbatim: July 2019)
Preferred name:
Lachnopsis sp. "dark hymenial hairs" P.R. Johnst.
Division:
Ascomycota
Class:
Leotiomycetes
Order:
Helotiales
Family:
Lachnaceae
Identification type:
Determination
Note:
ITS sequence match
Associations:
has host Cyathea medullaris (G.Forst.) Sw.
Substrate:
dead frond
Other identifications
Identification
Determined name:
Arachnopeziza cf.
Determiner:
P.R. Johnston
Identification date:
2017-05-11 (Verbatim: 2017/05/11)
Preferred name:
Arachnopeziza Fuckel
Determination uncertain:
yes
Active:
no
Identification type:
Determination
Other components
Active identification
Determined name:
Cyathea medullaris (G.Forst.) Sw.
Determiner:
Identification date:
Preferred name:
Cyathea medullaris (G.Forst.) Sw.
Division:
Tracheophyta
Class:
Polypodiopsida
Order:
Cyatheales
Family:
Cyatheaceae
Identification type:
Determination
Collection events
Primary collection event
Verbatim locality:
Waipoua Forest, Lookout Road (#2)
Verbatim collector:
P.R. Johnston
Standardised collector:
Peter R. Johnston
Collectors reference no.:
PRJ D2427
Verbatim date:
2017/06/11
Start date:
2017-06-11
Country:
New Zealand
New Zealand Area Codes:
Northland
Native lands:
Ngāpuhi
Ngāti Whātua
Te Roroa
Georeferences:
Latitude and Longitude (WGS84):
-35°40.09859´ 173°33.64493´ (WGS84 -35.66831 173.560749)
Specimen notes
Public Note:
31st Fungal Foray of New Zealand
Public Note:
same as PDD 111228
PRJ
PRJ
Public Note:
Apothecia with greenish hymenium when fresh, receptacle with dark hairs, margin of cup sometimes deeply indented to give a multi-cupped appearance, but stipe not branched. When dry, pale receptacle surface visible through the dark hairs and in places the hairs are rubbed off to expose the pale receptacle surface. Excipulum (squash mount) of cylindric cells (approx 4-6 x 8-15 µm) with thick walls. Hairs 50-60 x 3.5-4 µm, cylindric, apex undifferentiated, roughened all over, brown vacuolar pigment. Paraphyses 1.5-2 µm diam., undifferentiated to the apex, about same length as the asci; amongst the asci and the paraphyses are elements with the same morphology as the hairs, the hair-like elements extending 30-40 µm beyond the asci. Asci 55-70 x 6-7 µm, cylindric, taper gradually to small, subtruncate apex, wall slightly thickened with tiny J+ pore that extends all the way through the wall and flaring slightly to the outside, 8-spored. Ascospores 16-21 x 2-3 µm (average 18.6 x 2.4 µm), cylindric-fusoid, more or less straight, symmetrical, tapering gradually and evenly to acute ends, 0-septate. Spooner (p. 472-474) mention abnormal apothecia in PDD 19348 that have apothecia appearing black when dry, with dark hairs on receptacle and also amongst the hymenium - this must again be the same species. Note that most paothecia in PDD 19348 appear tyypical of D. pteridophyllum.
The morphology matches very closely that described by Spooner (1987) for IMI 263462 ex fern stem ex Queensland. He noted that this specimen was close to L. oncospermatum and L. lanariceps, but that it did not fit either species well. He speculated that the unusual morphology (compound apothecia, thick-walled excipular cells, hair-like elements in the hymenium) may reflect abnormal development in the small specimen he had available. The matching NZ specimens make this unlikely.
Known from two collections from Northland, PDD 111228 and PDD 111222, which have ITS more or less identical. ITS has a 97% BLAST match to specimens from tropical Asia that have been referred to L. oncospermatum (e.g. GenBank MK088085, KP903566). Based on Spooner 1987 and Wu et al. (Mycotaxon 67: 341-353, 1998), compared to L. oncospermatum, the Australasian species has darker hairs that lack resinous exudate, and shorter asci and ascospores. Another NZ specimens with no DNA data is the same species, PDD 82943. All three specimens are from Cyathea.
PRJ, July 2019
PRJ, July 2019
External links
Peter Johnston Culture Collection:
D2427
Assigned reference numbers
FUNNZ:
FUNNZ2017/1015
Permissions
Project permits
BC Provenance (BC P)
BC Consent Verified (BC CV)
Biocultural (BC) Notice
