Common name: Holzinger's Leek Orchid
Prasophyllum holzingeri D.L.Jones & L.M.Copel. APNI* Description: Terrestrial herb, to 30 cm high, growing singly.
Leaf 30–45 cm long, 2–3 mm wide, dark green, shin
Inflorescence a spike 8–15 cm long, 8–15-flowered, moderately dense. Flowers greenish to brownish pink and white or pink, thin-textured, not scented. Dorsal sepal narowly ovate-lanceolate, 8–10 mm long. Lateral sepals 8–10 mm long, divergent. Lateral petals linear, 8–10 mm long, apex acute to acuminate. Labellum 8.5–9.5 mm long and 4.0–4.5 mm wide, oblong-lanceolate when flattened, lamina strongly recurved, margins folded to crisped. Callus plate yellow to yellowish green, ending well below the bend in the lamina. Column with wings obovate; rostellum slightly higher than column wings.
Capsules not seen.
Flowering: January–March, flowering without fire.
Distribution and occurrence: Only known from the Barrington Tops. In grassy woodlands amongst dense snow grass on clay loams derived from basalt.
NSW subdivisions: NT
Prasophyllum holzingeri is a member of the P. patens-P. odoratum species flock, and critical comparison with other members of this flock, including P. album, P. anticum, P. canobolense, P. brevisepalum and P. graniticola by population genetic data is required. Described as allied to P. dossenum, but differing by its narrower labellum (4-4.5 vs 5-6 mm wide) which is oblong (vs ovate to ovate-oblong), and an oblong callus (vs ovate-cuneate).
Text by R.L.Barrett & M.A.M.Renner, June 2025
Taxon concept: D.L.Jones & L.M.Copeland, The Australian Orchid Review, Feb.-Mar. 2018: 39-51 (2018)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
|
