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Eidothea hardeniana P.H.Weston & Kooyman
Family Proteaceae
Common name: Nightcap Oak

Eidothea hardeniana P.H.Weston & Kooyman APNI*

Synonyms: Eidothea sp. nov. P.H.Weston 2464 APNI*
Eidothea 'Nightcap Range' (P.H. Weston 2469) APNI*

Description: Trees 15–40 m high, with one main trunk but often with up to 40 smaller shoots branching from the base.

Juvenile leaves in false whorls of 3–6, narrowly elliptical to obovate or ovate, with spinose-dentate margins, 8–15 cm long, 2–5 cm wide. Adult leaves in false whorls of 4–7, narrowly elliptical to obovate, with entire, flat to slightly recurved margins, (2.5-)8–13.5 cm long, (0.7-)1.7–4.2 cm wide; petiole (3-)5–10 mm long; apical spine 1–4.5 mm long.

Inflorescence 7–11-flowered; peduncle 6–7 mm long. Male flowers with perianth 8.0–9.6 mm long, basally connate for 2.2–3.3 mm; anthers 4.0–5.0 mm long. Bisexual flowers with perianth 10.0–12.0 mm long, basally connate for c. 3.4 mm; anthers 4.9–5.0 mm long; pistil 9.5–10.6 mm long; ovary densely covered in ascending hairs.

Fruits dull golden yellow, broad-ovoid to broad-ellipsoidal, 3.5–4.0 cm long. 3.0–3.7 cm diameter; mesocarp 2–4 mm thick, composed of soft, pithy, cream-coloured tissue; pyrene 2.7–3.4 cm long, 2.3–3.1 cm diameter.

L. Elkan

L. Elkan

Other photo
Photo T.M. Tame

Flowering: October to November

Distribution and occurrence: Nightcap Range

Upland cool and riparian simple notophyll vine forest, on acid volcanics.
NSW subdivisions: NC

Threatened species: NSW BCA: Endangered; Commonwealth EPBC: Critically Endangered
AVH map***

Description summarised from Weston & Kooyman (2002).

Text by P.H. Weston
Taxon concept: Weston & Kooyman (2002).

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.
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