ssr187 - Group J - part3 - A field key to the trees and shrubs in the ...

GROUP J
20 - Xanthostemon
……paradoxus
26* - Eucalyptus alba
24 - Corymbia bleeseri
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21 - Lophostemon
……lactifluus
22 - Eucalyptus tetrodonta
26 - Corymbia bella
21* - Lophostemon
…….grandiflorus

20 - Fruit capsule thick-walled, woody, globular;
petioles of older leaves basally bulbous swollen
[3.3.7a,b]; bark on trunk rough, grey to dark grey,
coarsely flaky .................................................................................... Xanthostemon paradoxus
[Bridal Tree]
20* - Fruit capsule cup-shaped, thin walled, petioles not
swollen, bark not coarsely flaky ....................................................... 21
21 - Bark thick, loose, papery, inner bark reddish;
mature trees often several-stemmed at the base;
fruit capsule usually < 5 mm diameter; pedicel
(stalk) 4-5 mm long........................................................................... Lophostemon lactifluus
21* - Box bark [3.3.4d] grey, fruit capsule usually >
5 mm diameter; pedicel 1-2 mm long ............................................... Lophostemon grandiflorus
[Northern Swamp Box]
22 - Leaves falcate [3.3.10g].................................................................... Eucalyptus tetrodonta
[Darwin Stringybark]
22* - Leaves not falcate.............................................................................. 23
23 - Bark, at least on some branches, smooth and white
or pale pastel coloured or if no smooth, palecoloured
bark then the bark only superficially scaly
and rusty red...................................................................................... 24
23* - Bark on trunk and branches chronically rough
throughout, grey, dark grey or grey-brown ...................................... 29
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GROUP J
24 - Leaves with 9 or more lateral veins [3.3.9c] per
centimetre along the midrib in the middle of the leaf ....................... Corymbia bleeseri
[Smooth-stemmed Bloodwood]
24* - Leaves with < 9 lateral veins per centimetre..................................... 25
25 - Leaves with an intra-marginal vein [3.3.9j]...................................... 26
25* - Leaves without an intra-marginal vein.............................................. 27
26 - Leaves without oil glands [3.3.14e]; not aromatic
[3.3.13]; leaf margins often wavy; fruit capsule
thin walled, easily crushed ................................................................ Corymbia bella
[Ghost Gum]
26* - Leaves with oil glands; aromatic; leaf margins not
usually wavy; fruit capsule thick-walled, woody ............................ Eucalyptus alba
[White Gum]

GROUP J
28 - Corymbia latifolia
27 - Corymbia grandifolia
30* - leaves discolourous 30 - leaves concolourous
29 - Eucalyptus tectifica
30 - Corymbia porrecta
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28* - Corymbia
…...foelscheana

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GROUP J
27 - Fruit capsule thin-walled, easily crushed; leaves
with highly wavy margins; foliage often shiny................................. Corymbia grandifolia
[Large-leaved Cabbage Gum]
27* - Fruit capsule thick-walled and woody; leaves not
with highly wavy margins, foliage dull............................................. 28
28 - Fruit capsule < 13 mm diameter...................................................... Corymbia latifolia
[Round-leaved Bloodwood]
28* - Fruit capsule > 13 mm diameter...................................................... Corymbia foelscheana
[Broad-leaved Bloodwood]
29 - Box bark [3.3.4d], grey to ashen grey often with
black mottling ................................................................................... Eucalyptus tectifica
[Darwin Box]
29* - Bark rough and flaky, dark grey to grey brown ................................ 30
30 - Blades concolourous [3.3.6c]........................................................... Corymbia porrecta
[Grey Bloodwood]
30* - Blades discolourous [3.3.6d]............................................................ 31
31 - Adult leaves < 35 mm wide .............................................................. Corymbia polycarpa
[Long-fruited Bloodwood]
31* - Adult leaves > 50 mm wide .............................................................. Corymbia ptychocarpa
[Swamp Bloodwood]
31* - Corymbia ptychocarpa
31 - Corymbia polycarpa