1 Manoora, QLD
Identification history
| Casearia grewiifolia | 13 Feb 2025 | JasonPStewartNMsnc2016 | ||
| Casearia grewiifolia | 31 Oct 2024 | JasonPStewartNMsnc2016 |
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User's notes
Vigorously growing young tree, large for a sapling, serrated large leaves, with small triangular stipules (photograph 4), oil dots and oil streaks in the leaves visible with a lens (photograph 5).
Casearia grewiifolia ? var. gelonioides (Blume) Sleumer ex Jessup –to check the identification to this variety or otherwise .
Cairns swamp park lands, in a forest–slashed grass–weeds warm edge facing the west –warm afternoon sun.
1 comment
JasonPStewartNMsnc2016
wrote:
13 Feb 2025
In the Au Tropical Herbarium (CNS – Cairns), checked with the binocular microscope distinctive foliage features of another foliage specimen i gathered off this sapling tree the other day;
including has:
• hairy triangular stipules (caducous) both sides of where the petiole joins the stem coloured green turning black before early falling off;
• leaves' laminas oil dots and oil streaks;
• toothed leaves' laminas;
etc.
Asked for corroboration – confirmation from colleagues here, eg. Stuart Worboys, Frank Zich and so on, referred me to re-check the stipules including compared to online herbaria specimens of Casearia grewiifolia;
and compare to also lowland swamp forest dwelling tree species Bridelia insulana for the purpose of an alternative hypothesis to disprove – trees of which i know well for many years thus i know this does not identify to .
Bridelia insulana does not have leaves' laminas with oil dots–streaks and usually has leaves' laminas' marigins smooth not toothed .
Au Tropical Rainforest Plants information system and multi–entry–point botanical (data matrix) key features selected:
"
• Habit (at fertile stage): Tree (over 6 m tall, usually single stem)
Leaf characters:
• Leaves whether simple or compound: L3 - simple
• Leaves arrangement: L5 - alternate or spirally arranged
• Stipules or stipular scars - present or not: L9 - present
• Oil dots visible or not: L12 - visible with a lens
• Leaf length-breadth ratio: L15 - 1.5 to 4.0
• Leaf margin: L18 - toothed
• Intramarginal vein (not applicable in longitudinally parallel venation): L21 - absent
• Leaf venation: L25 - 8-20 on each side of the midrib
• Lateral vein angle: L33 - 30-60 degrees
• Undersurface smooth or not: L36 - smooth
• Undersuface colour: L39 - paler green than the upper surface
• Petiole length: L42 - short less than 0.2 of the leaf blade
• Petiole winged or not: L45 - not winged
• Pulvinus present or absent: L47 - absent
• Shape (leaf or leaflet of compound leaves): L62 - oblong
• Apex shape (leaf or leaflet of compound leaves): L74 - acuminate
• Base shape (leaf or leaflet of compound leaves): L84 - obtuse
"
Ref' URL : https://apps.lucidcentral.org/rainforest/identity/key.html
.
including has:
• hairy triangular stipules (caducous) both sides of where the petiole joins the stem coloured green turning black before early falling off;
• leaves' laminas oil dots and oil streaks;
• toothed leaves' laminas;
etc.
Asked for corroboration – confirmation from colleagues here, eg. Stuart Worboys, Frank Zich and so on, referred me to re-check the stipules including compared to online herbaria specimens of Casearia grewiifolia;
and compare to also lowland swamp forest dwelling tree species Bridelia insulana for the purpose of an alternative hypothesis to disprove – trees of which i know well for many years thus i know this does not identify to .
Bridelia insulana does not have leaves' laminas with oil dots–streaks and usually has leaves' laminas' marigins smooth not toothed .
Au Tropical Rainforest Plants information system and multi–entry–point botanical (data matrix) key features selected:
"
• Habit (at fertile stage): Tree (over 6 m tall, usually single stem)
Leaf characters:
• Leaves whether simple or compound: L3 - simple
• Leaves arrangement: L5 - alternate or spirally arranged
• Stipules or stipular scars - present or not: L9 - present
• Oil dots visible or not: L12 - visible with a lens
• Leaf length-breadth ratio: L15 - 1.5 to 4.0
• Leaf margin: L18 - toothed
• Intramarginal vein (not applicable in longitudinally parallel venation): L21 - absent
• Leaf venation: L25 - 8-20 on each side of the midrib
• Lateral vein angle: L33 - 30-60 degrees
• Undersurface smooth or not: L36 - smooth
• Undersuface colour: L39 - paler green than the upper surface
• Petiole length: L42 - short less than 0.2 of the leaf blade
• Petiole winged or not: L45 - not winged
• Pulvinus present or absent: L47 - absent
• Shape (leaf or leaflet of compound leaves): L62 - oblong
• Apex shape (leaf or leaflet of compound leaves): L74 - acuminate
• Base shape (leaf or leaflet of compound leaves): L84 - obtuse
"
Ref' URL : https://apps.lucidcentral.org/rainforest/identity/key.html
.
Location information
- Coordinates 145.737869-16.910872
- Altitude 15.9m
- Places Manoora, QLD
Sighting information
- 1 Abundance
- 30 Oct 2024 01:36 PM Recorded on
- JasonPStewartNMsnc2016 Recorded by
-
Collections
JasonPStewartNMsnc2016 NatureMapr North Queensland Other Trees Plants
Additional information
- Vigorously growing young tree, serrated leaves. Description
- 0.01m Tree diameter (m)
- Greater than 5 metres Plant height
- Alive / healthy Plant health
Species information
- Casearia grewiifolia Scientific name
- Common name
- Not Sensitive
- Local native
- Non-invasive or negligible
- 15.92m Recorded at altitude
- Machine learning
- External link More information
Record quality
- Images or audio
- More than one media file
- Verified by an expert moderator
- Nearby sighting(s) of same species
- GPS evidence of location
- Description
- Additional attributes
