''Eucalyptus beyeriana'', commonly known as Beyer's ironbark, is a small tree that is endemic to New South Wales. It has dark grey to black "ironbark", lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped to conical or shortened spherical fruit. Its name is disputed with some authors considering it to be a

synonym A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ...

of ''Eucalyptus beyeri''.

Description

''Eucalyptus beyeriana'' is a tree, usually of low stature, that grows to a height of and forms a lignotuber. It has rough, dark grey to black "ironbark" on its trunk and branches. The leaves on young plants and on coppice regrowth are lance-shaped, long, wide and have a petiole. Adult leaves are lance-shaped, long, wide on a petiole long and the same dull green on both sides. The flower buds are arranged in groups of seven on a

peduncle Peduncle may refer to: *Peduncle (botany), a stalk supporting an inflorescence, which is the part of the shoot of seed plants where flowers are formed *Peduncle (anatomy), a stem, through which a mass of tissue is attached to a body **Peduncle (art ...

long, the individual buds on a

pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures ...

long. Mature buds are oval to diamond-shaped, long, wide with a conical to rounded operculum that is narrower than the

floral cup In angiosperms, a hypanthium or floral cup is a structure where basal portions of the calyx, the corolla, and the stamens form a cup-shaped tube. It is sometimes called a floral tube, a term that is also used for corolla tube and calyx tube. It ...

. Flowering occurs between August and November and the flowers are white. The fruit is a woody cup-shaped, conical or flattened spherical capsule long and wide on a pedicel long.

Taxonomy and naming

''Eucalyptus beyeriana'' was first formally described in 1990 by Lawrie Johnson and Ken Hill from a specimen collected near Wallacia. The description was published in the journal '' Telopea''. Johnson and Hill considered that the species had been mistaken for ''E. beyeri'', and that the

type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * Ty ...

specimen of ''E. beyeri'' was a

hybrid Hybrid may refer to: Science * Hybrid (biology), an offspring resulting from cross-breeding ** Hybrid grape, grape varieties produced by cross-breeding two ''Vitis'' species ** Hybridity, the property of a hybrid plant which is a union of two dif ...

, with

anthers The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filam ...

intermediate between ''E. beyeriana'' and '' E. crebra'', hence required a new name. ''Eucalyptus beyeri'' is now known as ''

Eucalyptus × beyeri ''Eucalyptus × beyeri'' is a hybrid species of tree that is endemic to New South Wales, Australia. It was originally given the name ''Eucalyptus paniculata'' var. ''angustifolia'' by George Bentham who published the description in '' Flora A ...

''. Ian Brooker disputes this interpretation and continues to use the name ''E. beyeri''. The specific epithets (''beyeriana'' and ''beyeri'') honour George Beyer, an herbarium assistant at the Sydney Technological Museum who assisted Richard Thomas Baker, the author of ''E. beyeri''.

Distribution and habitat

Beyer's ironbark grows in woodland in infertile soil from Narrabri to Nowra.

References

{{Taxonbar, from=Q15398166 beyeriana Myrtales of Australia Flora of New South Wales Trees of Australia Plants described in 1990