PDD 80202 – Rosenscheldiella styracis (Henn.) Theiss. & Syd. 1915
Data provider:
New Zealand Fungarium - Te Kohinga Hekaheka o Aotearoa
Barcode:
PDD 80202
Specimen type:
Packet
Loan status:
Active
Database record added:
01 April 2010
Database record updated:
24 February 2023
Components
Primary component
Active identification
Determined name:
Rosenscheldiella styracis
Determiner:
J.A. Cooper
Identification date:
Preferred name:
Rosenscheldiella styracis (Henn.) Theiss. & Syd. 1915
Division:
Ascomycota
Class:
Dothideomycetes
Order:
Mycosphaerellales
Family:
Mycosphaerellaceae
Identification type:
Determination
Associations:
has host Olearia rani
Substrate:
leaf, live
Other components
Active identification
Determined name:
Olearia rani
Determiner:
Identification date:
Preferred name:
Olearia rani (A.Cunn.) Druce
Division:
Tracheophyta
Class:
Magnoliopsida
Order:
Asterales
Family:
Compositae
Identification type:
Determination
Present:
no
Collection events
Primary collection event
Collection event type:
Unknown
Standard locality
Location:
Arthur's Pass
Georeferences:
Latitude and Longitude (WGS84):
-42.9242 171.552
Verbatim locality:
Arthur's Pass
Verbatim collector:
J.A. Cooper
Standardised collector:
J. A. Cooper
Collectors reference no.:
JAC8118
Verbatim date:
2001/01/13
Start date:
2001-01-13
Country:
New Zealand
New Zealand Area Codes:
North Canterbury
Native lands:
Ngāi Tahu
Georeferences:
New Zealand Map Grid:
2392665E 5807120N (WGS84 -42.934171 171.562316)
Specimen notes
Public Note:
asci 80x20, spores 17x6um. Genus is distinguished from Mycosphaerella by confluent erumpent stroma. R. oleariae would seem like an obvious candidate but it has much smaller asci and spores. Gadgil & Dick's taxon has larger spores than this collection and is indeed closer to Theissen & Sydow's type of styracis which has spores 28-30x6-8um, as well as do a number of other named Rosenscheldia's, none of which are on Asteraceaea. Further collections are needed to ascertain spore range and which, if any, named Rosenscheldia's do actually match. I certainly find it unlikely that an obligate pathogen on Styrax is also on Olearia. So I'm using this name for convenience but don’t believe it.
Assigned reference numbers
JA Cooper Fungarium:
JAC8118
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