Cryptocarya obovata

Cryptocarya obovata
	Cryptocarya obovata at the Royal Botanic Gardens, Sydney
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Magnoliids
Order:	Laurales
Family:	Lauraceae
Genus:	Cryptocarya
Species:	C. obovata
Binomial name
	Cryptocarya obovata; R.Br.

Cryptocarya obovata is a large laurel growing on basaltic and fertile alluvial soils in eastern Australian rainforests. It is found from Wyong (33° S) in New South Wales to Gympie (27° S) in the state of Queensland. Extinct in the Illawarra region (34° S), allegedly seen in the Illawarra in 1818 by Allan Cunningham.^[1] The species was included in the Prodromus Florae Novae Hollandiae et Insulae Van Diemen, 402 (1810)

Description[]

Cryptocarya obovata, known as the pepperberry or white walnut, reaches a height of 40 metres and a trunk diameter of 90 cm. The hairy underside of the leaves gives the tree a rusty appearance when viewed from below.

Trunk, bark and leaves[]

The trunk is straight and round in cross section, usually buttressed. The bark is grey or brown and usually fairly smooth. Vertical lines of pustules are often seen.

Leaves are alternate, obovate or oblong, 6 to 12 cm long, with a round tip. Upper surface smooth and glossy, underside usually greyish and finely hairy. Brown leaf stalks 3 to 8 mm long.

Leaf venation is prominent, the raised midrib, lateral and net veins are covered with brown hairs, standing out conspicuously. Veins brownish/orange or yellow in colour.

drawing by Margaret Flockton

Flowers, fruit and germination[]

Cream flowers in panicles. Individual flowers about 3 mm long, almost without stalks. Flowering occurs between February to May.

The fruit is a black globular drupe, usually ribbed. 12 mm in diameter. The seed is around 8 mm in diameter. Fruit ripe from March to May. Eaten by Australasian figbird, rose-crowned fruit-dove, topknot pigeon and wompoo fruit dove.

Like most Australian Cryptocarya fruit, removal of the fleshy aril is advised to assist seed germination, which is slow with Cryptocarya obovata After 205 days, a 50% germination success may be expected.

Gallery[]

Cryptocarya obovata at the Royal Botanic Gardens, Sydney
Cryptocarya obovata - bark
Cryptocarya obovata - juvenile
Cryptocarya obovata - leaves showing venation

References[]

^ Bofeldt, Anders (2011). "Table 1: Cryptocarya obovata" (PDF). Plants at Risk in the Illawarra: Introduction to Table 1 (PDF) (Technical report). Online via LandcareIllawarra.org.au. NSW. Retrieved 25 Apr 2013. Lay summary – Tribute to Anders, Landcare Illawarra (2011). {{cite techreport}}: Cite uses deprecated parameter |lay-source= (help)

Floyd, A.G. (1989). Rainforest Trees of Mainland South-eastern Australia. Inkata Press. ISBN 0-909605-57-2.

External links[]

"Cryptocarya obovata R.Br". Atlas of Living Australia.

[BofeldtIllawarraPlantsAtRisk-1] Bofeldt, Anders (2011). "Table 1: Cryptocarya obovata" (PDF). Plants at Risk in the Illawarra: Introduction to Table 1 (PDF) (Technical report). Online via LandcareIllawarra.org.au. NSW. Retrieved 25 Apr 2013. Lay summary – Tribute to Anders, Landcare Illawarra (2011). {{cite techreport}}: Cite uses deprecated parameter |lay-source= (help)

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