Angophora costata subsp. euryphylla
{{Short description|Subspecies of tree}}
{{Infraspeciesbox
|image =
|image_caption =
|genus = Angophora
|species = costata
|authority = L.A.S.Johnson ex G.J.Leach{{cite web |title=Angophora costata subsp. euryphylla |url=https://biodiversity.org.au/nsl/services/apc-format/display/91763|website=Australian Plant Census |accessdate=3 March 2020}}
|subspecies = euryphylla
|synonyms =
- Angophora euryphylla (G.J.Leach) L.A.S.Johnson & K.D.Hill
- Eucalyptus euryphylla (L.A.S.Johnson ex G.J.Leach) Brooker
}}
Angophora costata subsp. euryphylla is a species of medium-sized to large tree that is endemic to a restricted area of New South Wales. It has smooth bark, lance-shaped adult leaves, flower buds in groups of three, white or creamy white flowers and cylindrical to barrel-shaped fruit. It is similar to subspecies costata but has broader leaves and larger fruit.
Description
Angophora costata subsp. euryphylla is a tree that typically grows to a height of {{cvt|25|m}} and forms a lignotuber. It has smooth pinkish to orange bark that weathers to grey. Young plants and coppice regrowth have sessile leaves with a stem-clasping base that are egg-shaped, {{cvt|60-130|mm}} long, {{cvt|40-55|mm}} wide and arranged in opposite pairs. Adult leaves are also arranged in opposite pairs, glossy green above and paler below, lance-shaped or curved, {{cvt|100-210|mm}} long and {{cvt|20-50|mm}} wide on a petiole {{cvt|10-25|mm}} long. The flower buds are arranged on the ends of branches on a branched peduncle {{cvt|17-25|mm}} long, each branch of the peduncle usually with three buds on pedicels {{cvt|8-15|mm}} long. Mature buds are globe-shaped, {{cvt|6-10|mm}} long and {{cvt|6-11|mm}} wide, the floral cup hairy with longitudinal ribs. The sepals are up to {{cvt|3|mm}} long. The petals are white with a green keel and {{cvt|6-10|mm}} long, {{cvt|6-11|mm}} wide. Flowering has been observed in November. The fruit is a cylindrical to barrel-shaped capsule {{cvt|14-20|mm}} long and {{cvt|12-20|mm}} wide on a pedicel {{cvt|7-17|mm}} long.{{cite web |last1=Chippendale |first1=George M. |title=Angophora costata subsp. euryphylla |url=https://profiles.ala.org.au/opus/foa/profile/Angophora%20costata%20subsp.%20euryphylla |publisher=Flora of Australia. Australian Biological Resources Study, Department of Agriculture, Water and the Environment, Canberra |accessdate=6 March 2020}}{{cite web |title=Angophora costata subsp. euryphylla |url=https://apps.lucidcentral.org/euclid/text/entities/angophora_costata_subsp._euryphylla.htm |publisher=Euclid: Centre for Australian National Biodiversity Research |accessdate=5 June 2020}}{{cite web |last1=Hill |first1=Ken |title=Angophora costata subsp. euryphylla |url=http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=in&name=Angophora~costata~subsp.+euryphylla |publisher=Royal Botanic Garden Sydney |accessdate=6 March 2020}}{{cite journal |last1=Leach |first1=Gregory J. |title=A Revision of the genus Angophora (Myrtaceae) |journal=Telopea |date=1986 |volume=2 |issue=6 |pages=759–760 |doi=10.7751/telopea19864614 |url=https://www.biodiversitylibrary.org/item/265164#page/194/mode/1up |accessdate=4 March 2020|doi-access=free }}
Taxonomy and naming
Metrosideros costata was first formally described in 1788 by Joseph Gaertner. In 1916 James Britten changed the name to Angophora costata and in 1986 Gregory John Leach described three subspecies, including subspecies euryphylla. The type specimens were collected near Putty in 1971.{{cite web|title=Metrosideros costata|url= https://id.biodiversity.org.au/instance/apni/541992|publisher=APNI|accessdate=7 March 2020}}{{cite web|title=Angophora costata|url= https://id.biodiversity.org.au/instance/apni/514039|publisher=APNI|accessdate=7 March 2020}}{{cite web|title=Angophora costata subsp. euryphylla|url= https://id.biodiversity.org.au/instance/apni/514054|publisher=APNI|accessdate=7 March 2020}} The epithet (euryphylla) is from ancient Greek words meaning "broad" and "leaf".
Distribution and habitat
This eucalypt subspecies is restricted to rocky sandstone outcrops in open forest near Putty, in the Howes Valley and Judge Dowling Range.