In reality this entire discussion on members of this forum going into PNG and successfully, legally or illegally, obtaining the wanted plant material, then getting it back so that members of this forum can grow the material is either an entertaining exercise for discussion, or hallucinatory. - Millet

NOTE: The USDA & and other Agricultural authorities check the content of this forum. On several occasions I have been contacted by them inquiring about members, especially in relation to what they have written in their posts.

Keep cool Millet. It is not as hard as you think.
For the Citropsis mirabilis I contacted INRA That is managing the French germplasms collection and they said they will accept with pleasure any germplasm they don't have in their collection and take care of the work to verify and take off any disease. They even told me were I must send the germplasm.
All collections of the world work this way. Even in USA it works this way. Didn't you notice in the collections: Seeds sent by ... Budwood given by...

The Issues don't come from a new species brought back from the wild (witch is a very good thing) but from people that exchange between growing regions.

For example people sending citrus from Guadeloupe or Martinique (France) where they have greening to metropolitan France is a very dangerous act that is done every day without crossing a border.

Do the math if they have 13 plants of flowering size as reported.

If each plant produces only 10 functional flowers and thus 10 fruits, each fruit with 30 or more seeds. In 2013 13 x10 x30 is 3900seeds.

Even if trying to rebuild a wild population that is still a lot of seed? Surely for safety of the species they must be sending some to other collections?

As far as I know, there is no restriction on sending seeds. You can not however send plant parts.

Who could get information on Citrus medica var. papuan?

Thanks.

Try this database, it gives rough locations for the other species of interest
http://www.pngplants.org/

http://www.pngplants.org/PNGdatabase

http://www.pngplants.org/search.htm

http://www.pngplants.org/cgi-bin/RBG?form=PNG%2Fpng&laeno=&section=all&fam=&genus=citrus&species=&otherran=&otherval=&collname_tab=&collno=&datecol_1=&datecol_2=&datecol_3=&date2_1=&date2_2=&date2_3=&textdate%3A1=&country=&state=&subdiv=&loadloc=&sitedesc=&plantdes=&originat=&recordba=&donat2_tab=

If you search Citrus, then tick the box to select on the results, click more info, you get detailed collection info, inc lat + long for some

Looks like wakonai is listed as warburgiana on Goodenough Is

The authors of the paper on C. wakonai discuss the differences between it and C. warburgiana - which is found about 70km distant across the water. They observe several differences, the most notable being the fruit shape which is globose in warburgiana but ellipsoid in wakonai. They also note differences from C. garrawayi which is geographically considerably more distant.
The paper is available from my website at http://www.homecitrusgrowers.co.uk/australiannativecitrus/CWakonai%20pdfs/Wakonai.pdf

I have been exchanging a few emails with David Mabberley, one time head of Sydney Botanic Garden and author of several papers on Australian citrus and their taxonomy. He writes

Quote:

As to your question, I am not 100% convinced that C. wakonai is distinct from C. warburgiana, which is recorded from nearby.

Mike/Citrange

The data base doesn't list wakonai, but records a Citrus as warburgiana on Goodenough Is.
Either way, the former Microcitrus on Goodenough Island is likely to be wakonai as we are refering to it, as it was formerly regarded as garrawayi, and may have been recorded as warburgiana by the survey team.
It is possible that warburgiana and wakonai types both occur on Goodenough Is, but that seems unlikely.

If Prof Mabberly doesnt regard Poncirus or Microcitrus as distinct from Citrus in his reclassification, i doubt he would find much to differ in the obviously related PNG species

Papuan Citron appears in rootstock trials in Australia, but doesnt seem to be in arboretums( but listings getting old )
here is a UCR page
http://www.citrusvariety.ucr.edu/citrus/papuan.html

Yes but no data on the place where it grows...