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for me D.complex- D.pectenoides-D.shelfordii-D. raflesiana ( major)  are interessant   may be others with these leaves characteristic know or no .


some others like D.collyris-D.imbricata-D.davidii -D.nummularia -D.coccinea  seem interessant.




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  • 1 month later...

Dear Jeff,

please try to name topics in a way that they follow the naming scheme "Genus species - further explanation".

This topic could be named e.g. "Dischidia - ant associated species"

This will be a big help to find the topics just by alphabetic sorting in future when we have many more topics in the forum.

All the best


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  • 2 months later...

when I read the RINTZ document on  species of dischidia to the peninsular malayan  I see  for the leaves


1) In most species  they are essentially flat or lens-shaped in x-section  and ovate or elliptical in outline , with entire margins .There is a gland on the upper surface at the base of the blade .

2) A smaller group of species  has shell-like leaves which are convex in x-section and orbicular in outline, with entire margins .There is a 1-2mm long , conical projection just above the upper surface of each blade . The leaves are held closely appressed to the surface of the tree on which the plant is growing ,and the cavity formed is frequently occupied by ants .Plants in this group were formerly placed in the genus CONCHOPHYLLUM , on the basis of leaf shape, but have since been incorporated into DISCHIDIA.

3) Two species produce pitcher leaves in tight clusters and flat , ovate leaves on elongate stems. The pitcher leaves are open at the base next to the attachment of the petiole , a single root grows into each leaf and ramifies throughout the empty interior .The pitcher leaves are readily occupied by ants

4) a  fourth leaf type occurs only one specie, this type is flat in x section and oblanceolate in ouline , with a retuse apex and entire margins.As these leaves age they become nearly round in x-section and obtuse at the apex .


then  the section 1 and 4 are not myrmecophytes


but the 2 and 3 yes  but may be not on the same level


for the second  may be just a  myrmecodomic (house)  for the third  just  myrmecoxenic  ( house and food may be)


on the second section  may be separate   the shell leaves  and the leaves just appressed of the surface of tree


here it is just for the malayan species



your opinion  please



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  • 2 weeks later...
  • 1 year later...



on the  table S1   we find some dischidia



















Dischidiopsis papuana


like myrmecodomic


these others also


Dischidia acutifolia                            Maingay x Joseph Dalton Hooker.     Peninsular Malaysia.

Dischidia albida                                Griffith                                                 Peninsular Malaysia.

Dischidia bengalensis                       Colebrooke                                        Peninsular Malaysia.

Dischidia fruticulosa                          Ridley                                                 Peninsular Malaysia.

Dischidia hirsuta                              (Blume) Decaisne                               Peninsular Malaysia.

Dischidia longepedunculata              Ridley                                                 Peninsular Malaysia.

Dischidia punctata                             Decaisne                                           Peninsular Malaysia.

Dischidia subalata                             Warburg                                             Peninsular Malaysia.

Dischidia sp. Presumably Kaufmann’s spKfmE115                                     Peninsular Malaysia.


have you a idea  on their section   

Section Conchophylla  or  Ascidifera 

or others



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