Family: Orchidaceae
Pterostylis obtusa
Citation:
R. Br., Prod. Fl. Nov. Holl. 327 (1810).
Synonymy: Not Applicable Common name: Blunt-tongue green-hood.
Description:
Very slender, glabrous, 12-25 cm high; no rosette at the time of flowering; stem leaves usually small and bract-like, 3-5 including the one subtending the floral pedicel, lanceolate, clasping at the base, the upper ones longer than those below.
Flower solitary, green; galea 18-25 mm long, at first erect, then gradually incurved, the apex ending in a fine point c. 5 mm long; lateral sepals (lower lip) erect, cuneate; lobes separated by a broad bulging sinus with the notch protruding forwards, produced into long fine points embracing the galea and much exceeding it; labellum slightly exceeding the column, reddish-brown, oblong-linear, tip very obtuse and slightly recurved; lamina c. 9 mm long, with a raised longitudinal line down the centre; appendage linear, curved, penicillate; column erect, c. 10 mm long; upper angle of wings produced into an acute tooth, lower lobe blunt, oblong; stigma lanceolate, swollen.
Published illustration:
Fitzgerald (1880) Australian orchids vol. 1, pt 6; Gray (1971) Victorian native orchids 2:58; Woolcock (1984) Australian terrestrial orchids, pl. 49A.
Distribution:
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Forms small colonies on rocky slopes under light forest. Rare and restricted to two sites in S.Aust.
Qld; N.S.W.; Vic.; Tas.
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Conservation status:
native
Flowering time: April — May.
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SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
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Biology:
No text
Author:
Not yet available
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