Pterostylis micromega Hook.f.

Caption:

Details

Name scientific

Pterostylis micromega Hook.f., Bot. Antarct. Voy. II. (Fl. Nov.-Zel.) Part I, 248 (1853)

Preferred name

Pterostylis micromega Hook.f.

Taxonomy reference

Jones, D.L.; Clements, M.A.; Molloy, B.P.J 2002: A Synopsis of the Subtribe Pterostylidinae. Australian Orchid Research 4: 129–146.

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Endemic

Wild

New Zealand

Political Region

Jones, D.L.; Clements, M.A.; Molloy, B.P.J (2002)

Nomenclature

Authors

Hook.f.

Original authors

Hook.f.

Publication place

Hooker, J.D. 1852–1853 ("1853"): The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror in the Years 1839–1843, under the command of Captain Sir James Clark Ross. II. Flora Novae-Zelandiae. Part I. Flowering plants. Lovell Reeve, London.

Year published

1853

Publication page

248

Nomenclatural code

ICN

Basionym

Pterostylis micromega Hook.f.

Taxonomic rank

species

Canonical form

Pterostylis micromega

Classification

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Asparagales

Family

Orchidaceae

Genus

Pterostylis

Species

micromega

Synonyms

Descriptions

Dawson, M.I. 2008: Index of chromosome numbers of indigenous New Zealand vascular plants.

Pterostylis micromega Hook.f.

Description

2n = 44

Description

2n = 44

Moore, L.B.; Edgar, E. 1970: Flora of New Zealand. Vol. II. Indigenous Tracheophyta: Monocotyledones except Gramineae. Botany Division DSIR, Wellington.

Pterostylis micromega Hook.f.

Description

Plant to c. 20–30 cm. tall. Stem c. 2 mm. diam., smooth; lower internodes short, upper sts longer than adjacent lvs. Lower lvs rarely forming close rosette; lamina us. c. 5 cm. long, broad-elliptic, subacute, margins often crisply and finely undulate, narrowing to short petiole. Upper lvs foliaceous, sessile, the uppermost sheathing, us. smallest, often reaching but rarely overtopping fl. Fl. solitary, erect, per. often whitish. Dorsal sepal 2.5–4 cm. long, us. smoothly arcuate throughout its length, tip acuminate to shortly caudate, ascending to curved downward; lateral sepals diverging at a narrow angle, tips caudate and overtopping galea. Petals shorter than dorsal sepal acuminate. Labellum narrow-triangular, arched almost in a right angle, protruding, apex narrowly obtuse, margins slightly upturned. Column much shorter than labellum; stigma narrow-oblong, flat.