160 MYRTACEAE 
27. Buds 2.5-7 mm long 
27. Buds 8-12 mm long 
28. Buds pyriform; operculum saucer shaped, umbonate 
2 Sams BUCS telIPSOId tOpercHl usin COMI Calsemamestenterctersettttsereerneertserttaatsettserreetarerssrteereteecaer tester’ 
Eucalyptus 
E. brachyandra 
E. dichromophloia 
E. foelscheana 
E. bleeseri 
29% Inflorescence/anjaxiflarye/-flowered umbel i iit-.ters.sscssetesesstietecesteostasevcastasssesecesecstseatiteates 30 
29. Inflorescence an irregular cluster, flowers >7 per cluster 33 
30. Trees of seasonally flooded areas, stream margins 31 
3 OMe LTECSIOLTOCK Yj 110 DeSterratsrenemestseereteerrererricsrestemtriver teerenttrtereesterstitrtsrsneestettessstetitetrt st trrees 32 
5 lem BUdS1O-8(1 0) mm long menteesteeenc ives recteertetteteterterccracecenterestesteentucsstsarttcrereeerstarfere temettees E. alba 
5 lem BudsiS-18imimilongiierrerstsssctresererstercsstereserecetten eieereriorteestresricterececessstiesntetsesreteesterrttertts E. camaldulensis 
42 COPETCLUUM CUDU Lat peceeescenesetareertree etree trettectetteterstcenetertirtrettsnsteneterstentsnteerrtmaerasttrtettrsteatr’ E. herbertiana 
32. Operculum narrowly conical to rostrate .............sssssesssecsssecescececceqeecsssccessssessssseesssseesseseeses E. umbrawarrensis 
33. Inflorescence on current seasons growth, bark smooth 
throughoutionwithishortistockin gitsa sts tttcterresstaetestetcretertbccsarerrretersicsinefeises? E. papuana 
33. Inflorescence on previous seasons wood, bark rough, tessellated or 
Scaly,on|lower trunk seewersstcerscetrrttetecstrte errant iteeeiiet 34 
34. Leaves >28 mm wide; petioles >13 mm long; buds 14-44 mm long ........ceseeseeesesereee 
34. Leaves <22 mm wide; petioles <12 mm long; buds 12-16 mm long .........eeeeeeeeereeeees 
E. alba Reinw. ex Blume 
E. alba var. australasica Blakely & Jacobs 
Evergreen tree to 12 m, rarely to 18 m; bark smooth 
and white throughout. Branchlets of juvenile and 
intermediate foliage glaucous, quadrangular; 
intermediate leaves broadly ovate, to 100 mm wide. 
Petioles 12-42 mm long. Leaf blades lanceolate, 
slightly falcate, (65)80-150(200) mm long, 14-60 mm 
wide, L/B 1.8-6(10). Inflorescence of 7-flowered 
umbels, solitary in leaf axils on current seasons shoots. 
Peduncles terete to angular, 5-10 mm long. Buds 
subglaucous, sessile or shortly pedicellate, ellipsoid 
or globular; 6-8(10) mm long, incl. pedicel, 3-6 mm 
wide. Operculum hemispherical, + equal to 
hypanthium in length, apiculate. Stamens white. 
Capsule sessile or with pedicels to 4(7) mm long; 
hypanthium hemispherical, 3-5 mm long, 5-7 mm 
wide; valves exsert. Mlowering: July - Sept; fruiting: 
Aug - Oct. Fig. 49 
Known from monsoonal Australia from the 
Kimberley to northern Qld; also in eastern Indonesia 
and New Guinea. In the DR E. alba occurs on creek 
lines on sandy soils overlying clay on the margins of 
the coastal plains. 
E. apodophylla Blakely & Jacobs 
Evergreen tree to 18 m; bark smooth and white 
throughout. Branchlets pruinose, quadrangular. Leaves 
glaucous, opposite, sessile, cordate to amplexicaulous; 
E. clavigera 
E. kombolgiensis 
blades elliptic or lanceolate, 40-170 mm long, 25-65 
mm wide, L/B 1.6-3.1. Inflorescence of solitary, 
axillary, 7-flowered umbels on current seasons 
growth. Peduncles 3-7 mm long. Buds glaucous, 
sessile or shortly pedicellate, globular, 4-8 mm 
long incl. pedicels, 4-5.8 mm wide; operculum 
hemispherical, apiculate. Capsules sessile or pedicels 
to 2.5 mm long; hypanthium obconical, 4-5 mm long, 
4-6 mm wide; valves shortly exsert. Flowering: June 
- Oct; fruiting: Sept - Nov. Fig. 49 
In scattered populations in the NT and the 
Kimberley. In the DR it forms pure stands on silty 
flats near Adelaide River township. E. apodophylla 
is one of the most attractive of the local species and 
has had some success in landscaping in Darwin. 
E. bigalerita FMuell. 
Tree to 17 m high; bark smooth and white or 
greyish white throughout, the new seasons bark bright 
orange. Leaves shiny; petioles 35-80 mm long; blades 
deltoid, 51-160 mm long, (50)80-150 mm wide, L/B 
0.9-1.8. Inflorescence of 5-7-flowered solitary, 
axillary umbels on current seasons shoots. Peduncles 
stout, 5-10 mm long. Buds sessile or shortly 
pedicellate, globular to obovoid, 8-14 mm long, 7-11 
mm wide; operculum hemispherical, rounded or 
apiculate. Capsules sessile or on pedicels to 1 mm 
long; hypanthium obconic, 8-10 mm long, 7-13 mm 
wide; valves exserted or level with rim. Flowering: 
July - Sept; fruiting: July - Oct. Fig. 49 
