''Eucalyptus baeuerlenii'', commonly known as Baeuerlen's gum, is a mallee, sometimes a tree, that is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found else ...

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

. It has smooth bark throughout, lance-shaped to curved adult leaves, oblong to spindle-shaped buds in groups of three in leaf axils, white flowers and bell-shaped, cup-shaped or conical fruit. It grows in mountain areas in the south of the state. Eucalyptus baeuerlenii flowers

Description

''Eucalyptus baeuerlenii'' is a mallee that grows to a height of , sometimes a tree to and forms a

lignotuber A lignotuber is a woody swelling of the root crown possessed by some plants as a protection against destruction of the plant stem, such as by fire. Other woody plants may develop basal burls as a similar survival strategy, often as a response t ...

. It has smooth brownish, grey, cream-coloured or green bark. The leaves on young plants and

coppice Coppicing is a traditional method of woodland management which exploits the capacity of many species of trees to put out new shoots from their stump or roots if cut down. In a coppiced wood, which is called a copse, young tree stems are repeate ...

regrowth are arranged in opposite pairs, lance-shaped, long and wide. The adult leaves are arranged alternately, lance-shaped or curved, long and wide on a petiole long. They are the same colour on both surfaces. The flower buds are arranged in groups of three in leaf axils on an unbranched peduncle long, the individual buds on a short

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 ...

sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ...

. The mature buds are oblong to spindle-shaped, green to yellow, usually warty, long and wide with a conical to beaked operculum that is shorter and narrower than the

flower cup The Flower Cup (Japanese フラワーカップ) is a Grade 3 horse race for three-year-old Thoroughbred fillies run in March over a distance of 1800 metres at Nakayama Racecourse. The race was first run in 1987 and has been run at Grade 3 level ...

. Flowering mainly occurs from March to May and the flowers are white. The fruit is a conical, cup-shaped or bell-shaped capsule long and wide.

Taxonomy and naming

''Eucalyptus baeuerlenii'' was first formally described in 1890 by Ferdinand von Mueller who published the description in ''

The Victorian Naturalist ''The Victorian Naturalist'' is a bimonthly scientific journal covering natural history, especially of Australia. It is published by the Field Naturalists Club of Victoria and is received as part of the membership subscription of that club. From ...

''. The type specimen was sent to Mueller by

William Baeuerlen William Baeuerlen was a German botanical collector and explorer. He was born in Niedernhall as Leonhard Carl Wilhelm Bäuerlen. He became Ferdinand von Mueller's botanical collector in Australia from the 1880s, and later the collector for Josep ...

, (previously known as Wilhelm Bäuerlen) who collected it on Sugarloaf Mountain (near

Clyde Mountain Clyde Mountain, at an elevation of , is a mountain in the Southern Tablelands region of New South Wales, Australia. Location and features Clyde Mountain is located in the Great Dividing Range within the Monga National Park. The mountain is ap ...

) "near the sources of the Clyde River". Baeuerlen noted "I am always a bit shy about sending you ''Eucalyptus'' specimens, but I think that this present one will not waste your time unnecessarily." He also noted that the species is a small, "sparse shrub" high at an altitude of about , mallee like further down and "tree-like", up to high at . The specific epithet (''baeuerlenii'') honours William Baeuerlen who collected for Mueller from 1883 until at least 1888.

Distribution and habitat

Baeuerlen's gum grows in open forest in skeletal soil. It has a disjunct distribution, occurring in the Blue Mountains and on the

Southern Tablelands The Southern Tablelands is a geographic area of New South Wales, Australia, located south-west of Sydney and west of the Great Dividing Range. The area is characterised by high, flat country which has generally been extensively cleared and ...

including in the

Budawang National Park Budawang National Park is a national park in New South Wales, Australia, located approximately southwest of Sydney and north of Batemans Bay. It contains part of the Budawang Mountain Range. Budawang National Park is named after Mount B ...

Deua National Park Deua is a national park located in New South Wales, Australia, south of Sydney, and east of Canberra. The nearest towns on the coast are Batemans Bay, Moruya and Narooma. A remote wilderness area of escarpments and gullies, waterfalls, limesto ...

and

Wadbilliga National Park Wadbilliga National Park is a national park that is located in high country spanning the Monaro and South Coast regions of south-eastern New South Wales, Australia. Location and features Wadbilliga National Park is located southwest of Sydney ...

References

{{Taxonbar, from=Q15401234 baeuerlenii Myrtales of Australia Flora of New South Wales Trees of Australia Taxa named by Ferdinand von Mueller