CHR 655514 – Coprosma obconica Kirk
Data provider:
Allan Herbarium
Barcode:
CHR 655514
Specimen type:
Sheet
Database record added:
14 January 2019
Database record updated:
24 February 2023
Components
Primary component
Active identification
Determined name:
Coprosma obconica Kirk
Determiner:
Miles Giller
Identification date:
2018-11-16 (Verbatim: 16 Nov 2018)
Preferred name:
Coprosma obconica Kirk
Division:
Spermatophyta
Class:
Magnoliopsida
Order:
Rubiales
Family:
Rubiaceae
Identification type:
Determination
Collection events
Primary collection event
Collection event type:
Field
Standard locality
Location:
Conway River
Georeferences:
Latitude and Longitude (WGS84):
-42.541929 173.324864
Verbatim locality:
Conway River
Verbatim collector:
Miles Giller; Gillian Giller; Alice Shanks
Standardised collector:
Miles Giller; G. Giller; Alice Shanks
Verbatim date:
16 Nov 2018
Start date:
2018-11-16
Country:
New Zealand
Land District:
Marlborough Land District
Ecological District:
Hundalee
Native lands:
Ngāi Tahu
Georeferences:
New Zealand Transverse Mercator:
1627338E 5289264N (WGS84 -42.548528 173.332965)
Altitudes:
from 180m
Habitat:
Growing as a scattered population of plants on or near the edge of a perched riparian terrace alongside the river, most dominant along drier ground under a fragmented kanuka canopy along the top of a north-facing riparian scarp, but also occurring back from the scarp edge on damper ground under podocarp-hardwood forest. Physically protected from livestock by fencing and legally protected by way of Ngaroma Scenic Reserve. Subject to browsing by feral red deer and occasional disturbances by feral pigs. The local canopies are dominated by almost pure Kunzea robusta (along the drier, warmer terrace edge), and by Fuscospora solandri, Elaeocarpus hookerianus and Kunzea robusta, with occasional emergent Dacrycarpus dacrydioides and Prumnopitys taxifolia (on the terrace, further back from the edge). The understorey supports Pseudopanax ferox, Helichrysum lanceolatum, Coprosma rigida, Coprosma rhamnoides and Coprosma crassifolia (generally on drier stony terrace-edge surfaces), and by Coprosma rigida, Lophomyrtus obcordata and Myrsine divaricata (on damper, deeper soils back from the terrace edge). The groundcover of the terrace edge is dominated by extensive mosses, occasional ferns and sedges, and Brachypodium sylvaticum, the groundcover of the damper sites supports occasional ferns (especially Blechnum penna-marina)over litter and bare ground.Substrate: Stoney to deep alluvial soils and loess are routinely augmented by wind-blown grit from the braided bed of the adjacent Conway River. Overlies greywacke rock.
Notes:
At least 100 specimens were found, scattered over several hectares. This population of Coprosma obconica is locally sympatric with Coprosma pedicellata and Pseudopanax ferox. Coprosma obconica plants occurred as healthy shrubs up to c. 2 m tall, with occasional sign of recent recruitment. Collected with The Canterbury Botanical Society.
Observed species:
Blechnum penna-marina
Brachypodium sylvaticum
Myrsine divaricata
Lophomyrtus obcordata
Coprosma rigida
Coprosma crassifolia
Helichrysum lanceolatum
Prumnopitys taxifolia
Dacrycarpus dacrydioides
Elaeocarpus hookerianus
Fuscospora solandri
Kunzea robusta
Coprosma rhamnoides
Pseudopanax ferox
Brachypodium sylvaticum
Myrsine divaricata
Lophomyrtus obcordata
Coprosma rigida
Coprosma crassifolia
Helichrysum lanceolatum
Prumnopitys taxifolia
Dacrycarpus dacrydioides
Elaeocarpus hookerianus
Fuscospora solandri
Kunzea robusta
Coprosma rhamnoides
Pseudopanax ferox
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