South Island, Canterbury (EP), 52.06 Motunau, [near Greta Valley and Motunau Beach] Cranky Tom Conservation Area.
Verbatim collector:
Giller, Miles; Canterbury Botanical Society
Standardised collector:
Miles Giller; Canterbury Botanical Society
Verbatim date:
07 Nov 2020
Start date:
2020-11-07
Country:
New Zealand
Land District:
Canterbury Land District
Native lands:
Ngāi Tahu
Georeferences:
Latitude and Longitude (WGS84):
43°0.050´ S 173°3.283´ E (WGS84 -43.000833 173.054717)
Altitudes:
from 120m
Notes:
Wide-spread and plentiful (hundreds of plants). A colonial patch of about 10 specimens of Notogrammitis sp. was collected, collectively covering an area of c. 20 cm x 20 cm. Numerous other colonies and individuals were observed. Grid reference calculated from an aerial, thus indicative within c. 20 m.
Substrate: Growing on the gently sloping bank of colluvial and loessial deposits predominantly derived from underlying sandstone, in a gorge mouth, 5 m above a stream. Also observed growing nearby on sheer faces of porous sandstone.
General description of habitat: Notogrammitis sp.was found growing either as a loose clusters of plants (often 20 cm or more diameter) growing through well-lit beds of mosses and on relatively bare gently sloping colluvial surfaces under beech forest, or as tighter clusters on sheer sandstone faces among ferns (particularly filmy ferns), mosses and liveworts in a narrow (dark and humid) slot gorge. Both habitats were free of much litter, and close to a gully-bottom stream (Cranky Tom Stream).
Associated species: Black beech (Fuscospora solandri) over occasional Griselinia littoralis, Leucopogon fasciculatus, Coprosma propinqua, C. microcarpa, and C. rhamnoides. The groundcover on gentler slopes was dominated by mosses with occasional sedges and grasses. The groundcover on sheer sandstone faces was dominated by Blechnum novae-zelandiae over Blechnum chambersii over mats of Hymenophyllum minimum and H. cupressiforme (occasionally with other Hymenophyllum species), and mosses. Notogrammitis heterophylla, N. patagonica and N, billardierei were also present on the sheer sandstone faces.
The distinctive sandstone geology of Cranky Tom Conservation Area has resulted in a deep steep-walled canyon along upper reaches of Cranky Tom Stream. The sandstone is porous and moisture-retentive, meaning that (in cahoots with the topographic protection) filmy ferns (at least 7 species) and numerous other ferns find habitat there. The collected Notogrammitis sp. was the dominant strap fern species present in and adjacent to the slot gorge.
Specimen notes
Herbarium history:
Herbarium, Museum of New Zealand Te Papa Tongarewa, Wellington, N.Z.