Pterostylis venosa Colenso

Caption:

Details

Name scientific

Pterostylis venosa Colenso, Trans. & Proc. New Zealand Inst. 28: 610 (1895 [1896])

Preferred name

Pterostylis venosa Colenso

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

Colenso

Original authors

Colenso

Publication place

Colenso, W. 1896: Phænogams: A description of a few more newly-discovered indigenous plants; being a further contribution towards the making known the botany of New Zealand. Transactions and Proceedings of the New Zealand Institute 28: 591–613.

Year published

1895

Year on publication

1896

Publication page

610

Nomenclatural code

ICN

Basionym

Pterostylis venosa Colenso

Taxonomic rank

species

Canonical form

Pterostylis venosa

Classification

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Asparagales

Family

Orchidaceae

Genus

Pterostylis

Species

venosa

Synonyms

Descriptions

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

Pterostylis venosa Colenso

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 venosa Colenso

Description

Plant c. 3–10 cm. tall at fl. Stem short, erect, smooth, us. half hidden by lvs until part below ovary elongates at fr. Lvs us. 2–3, all much alike, often equalling and sts overtopping fl.; lamina c. 3–6 × (1)–1.5–2.5 cm., orbicular to broad-oval, tip obtuse to broadly subacute, base narrowing to broadly winged, sheathing petiole. Fl. solitary; ovary us. erect. Dorsal sepal c. 1.5 cm. tall, erect then horizontal, acute to very shortly acuminate; lateral sepals diverging at a narrow angle, tips acuminate to shortly caudate, not greatly overtopping galea. Petals almost as long as dorsal sepal, broad almost to tip. Labellum narrow-triangular, arched and protruding, apex subacute, inner surface quite covered with short retrorse hairs giving an unusually furry appearance. Column us. shorter than labellum; stigma narrow-elliptic.