Eucryphia

Eucryphia
Eucryphia cordifolia, South America
Eucryphia lucida, Tasmania, Australia
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Oxalidales
Family:	Cunoniaceae
Genus:	Eucryphia Cav.
Species
See text.

Eucryphia is a small genus of trees and large shrubs of the Antarctic flora, native to the south temperate regions of South America and coastal eastern Australia. Traditionally placed in a family of their own, the Eucryphiaceae, more recent classifications place them in the Cunoniaceae. There are seven species, two in South America and five in Australia, and several named hybrids. They are mostly evergreen though one species (E. glutinosa) is usually deciduous.

The leaves are opposite, and either simple or pinnate with 3-13 leaflets. The flowers are produced in late summer or autumn, are showy and sweetly scented, 3-6 cm diameter, with four creamy-white petals, and numerous stamens and styles. The fruit is a woody capsule 1-1.5 cm long containing several seeds, and maturing in 12-15 months.

The generic name is derived from the Greek for "well hidden".

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Species

• Eucryphia cordifolia Cav. – Valdivian temperate rain forests of southern Chile and Argentina. A tree growing up to 40 m tall; leaves simple, crenate to serrated, evergreen, 3-7 cm long. Its wood is used for construction, furniture and lumber, and its nectar for honey.
• Eucryphia glutinosa (Poepp. & Endl.) Baill. – Valdivian temperate rain forests of southern Chile and Argentina. A large shrub to 7 m tall; leaves pinnate, with 3-5 leaflets, serrated, deciduous or semi-evergreen, 3-6 cm long.
• Eucryphia jinksii P.I.Forst. – subtropical New South Wales & Queensland mountain rainforests endemic, Australia. A tree to 25 m tall; leaves simple or with 3 leaflets, entire, evergreen, 5-10 cm long (discovered 1994).^[1]
• Eucryphia lucida (Labill.) Baill. – Tasmania Australia. A tree to 20-30 m tall; leaves simple, entire, evergreen, 3-7 cm long. Common name is Tasmanian Leatherwood and is a major commercial source of monofloral honey.
• Eucryphia milliganii Hook.f. (syn. E. lucida var. milliganii). – Tasmania Australia. A tree to 6 m tall; leaves simple, entire, evergreen, 1.5-3 cm long.
• Eucryphia moorei F.Muell. – New South Wales, Victoria temperate rainforests, Australia. Also known as Pinkwood or Plumwood, is a tree to 30 m tall; leaves pinnate, with 7-15 leaflets, entire, evergreen, 6-12 cm long.
• Eucryphia wilkiei B.Hyland – Queensland wet tropics mountain top cloud forests endemic, Australia.^[2][1] Discovered in Jan. 1970 by Jack (John H.) Wilkiei.^[1]

Hybrids and cultivars

(those marked agm have gained the Royal Horticultural Society's Award of Garden Merit)

• E. × intermedia (E. glutinosa × E. lucida)
  • E. × intermedia 'Rostrevor'agm^[3]
• E. × hillieri (E. moorei × E. lucida): Developed from a self-sown seedling at the nursery of Hillier & Sons, Chandlers Ford in Hampshire around 1953.^[4]
• E. × nymansensis (E. cordifolia × E. glutinosa)
  • E. × nymansensis 'Nymansay'agm^[5] originated from Lt. Col. Leonard C.R. Messel's garden at Nymans, Sussex (1913)^[4]
  • E. × nymansensis 'Nymans Silver' is a sport discovered at Nymans, Sussex in 2005. It is a variegated form with serrated oval leaves that are outlined in creamy white. It was discovered growing on a E. × nymansensis within the garden. It is considered to be faster growing and more columnar in nature. The name 'Nymans Silver' was proposed by Philip Holmes, Deputy Head Gardener at Nymans.'
• E. 'Penwith' (E. cordifolia × E. lucida)
• E. × hybrida (E. glutinosa × E. lucida)

Extinct species

• E. falcata (Late Palaeocene, Lake Bungarby)^[6]
• E. microstoma (Early Eocene, Regatta Point)^[6]
• E. aberensis (Middle to Late Eocene, Loch Aber).^[6]

Uses

The species and their hybrids are attractive small trees for gardens, typically with a slender conic crown when young, though widening with age. They are valued for their conspicuous scented flowers, produced in late summer and autumn when few or no other trees are in flower. Cultivation is restricted to areas with mild winters, cool summers and good rainfall; away from their native areas, this restricts them to the Atlantic coastal regions of Europe, the Pacific Northwest of North America, and New Zealand.

Many of the species and hybrids may be seen at The Tasmanian Arboretum.

References

External links

• Eucryphia in Encyclopedia of the Chilean Flora
• Pictures of Eucryphia cordifolia and Eucryphia glutinosa in Chile.