Pterostylis irsoniana Hatch
Details
Pterostylis irsoniana Hatch (1950)
Pterostylis irsoniana Hatch
Biostatus
Nomenclature
Hatch
Hatch
1950
ICN
Pterostylis irsoniana Hatch
species
Pterostylis irsoniana
Classification
Descriptions
Pterostylis irsoniana Hatch
2n = 44
Pterostylis irsoniana Hatch
Plant to c. 35 cm. tall at fl., us. less. Stem us. erect, smooth, internodes < lvs. Lvs mostly 3–5, the size changing from below upwards, the largest lf on a stem c. 4–15–(18) cm. × 5–12 mm.; all linear-lanceolate, ± keeled, acuminate, widest near sheathing base, us. overtopping fl. Fl. solitary, ovary us. erect. Dorsal sepal (1.5)–2.5–3 cm. tall, the erect part us. long and the ± horizontal part proportionately rather short, acuminate to shortly caudate; lateral sepals diverging at a narrow angle, tips acuminate to shortly caudate, not greatly exceeding galea. Petals little shorter than dorsal sepal, tips narrow-acuminate. Labellum narrow-triangular and protruding, gently arched but us. curled sharply downwards at the narrow, cucullate, obtuse tip; midrib evanescent distally, proximally prominent and ± papillose, terminating basally in a projecting dark callus. Column almost as tall as labellum; stigma long, narrow.
Taxonomic concepts
Pterostylis irsoniana Hatch
Pterostylis irsoniana Hatch
Pterostylis irsoniana Hatch
Pterostylis irsoniana Hatch
Pterostylis irsoniana Hatch
Pterostylis irsoniana Hatch
Pterostylis irsoniana Hatch
Pterostylis irsoniana Hatch
Pterostylis irsoniana Hatch
Collections
Metadata
b8a7649d-e268-4a87-89b6-8532be570215
scientific name
Names_Plants
1 January 2000
9 September 2005