It seems that the original story that the Mt White Lime C. garrowayi, occurs both in Cape York Australia and Goodenough Island in PNG is not correct.
The PNG species has been described as a new kind, C. wakonai, related to
C. warburgiana from PNG and C. inodora from Nth Qld.
C. wakonai pronounced wokani, is named for the local village in the area.
The plant is called " kamakuku "
The plant has a very short juvenile period, as low as 144 days from germination, compared to C. wintersii 14 months.
C.wakonai x Citrus hybrids can flower in 12 months.

http://www.jstor.org/discover/10.2307/41739123?uid=2134&uid=2476779703&uid=2&uid=70&uid=3&uid=2476779693&uid=60&purchase-type=none&accessType=none&sid=21103042575493&showMyJstorPss=false&seq=3&showAccess=false
http://www.jstor.org/discover/10.2307/41739123?uid=2134&uid=2476779703&uid=2&uid=70&uid=3&uid=2476779693&uid=60&sid=21103042575493

Yes, that's another very interesting species that I would love to add to my collection. (The complete article can be downloaded free if you register at JSTOR.) But the Bundaberg Research Centre is not releasing material for distribution - they are carrying out cross breeding trials of rootstocks themselves. See also
http://xt.cric.cn/wx/view.php?id=A,248,18330,2

I am still trying to get hold of seeds of Citrus gracilis.
I think I'm getting close - in contact with an Australian who has several mature fruiting plants on his land, but hasn't yet found any seeds!

Mike/Citrange

The article is here.

I am too very, very interested to have few viable seeds.

I've been trying to collect some more information about C. wakonai.
Not easy, but what I have so far may interest you - even though much of it is a compilation of bits and pieces found on the internet. See
http://www.homecitrusgrowers.co.uk/australiannativecitrus/citruswakonai.html
I've been corresponding with one of the discoverers of C.wakonai but he can't send seeds. We need someone to go to Goodenough Island to get some! Try reading this account of a student doctor who went there - a truly horrendous journey that was nearly fatal!
http://helenasadventuresintropicalpng.wordpress.com/2013/02/11/was-it-goodenough/
Anyone feel in need of some adventure?
Citrange/Mike

Thanks Mike. I spent most of the night with your post, and your web site. Read every word. Simply Fantastic. Your investigation into the C. Wakonai, and the subsequent information (especially the story about the student doctor), that you provided us was outstanding. - Millet

good job Citrange

You did a nice job mike.
I have too species of Citropsis and really need few seeds of C. wakonai to cross with and use as bridge toward citrus.

Quote:

Anyone feel in need of some adventure?

If someone pays the plane ticket, this summer I go there and send you seeds. This is exactly the situations I love.

Hi Sylvian

Have you considered using a different microcitrus to try and hybridise with citropsis.

C. wakonai was probably chosen because it is reputed to flower at a year old. Unless you are also looking to carry this trait into the hybrid the microcitrus parent is not relevant.

In fact in the absence of C. wakonai hybridisation using another of the microcitrus would be good practice to prove the crossing of the 2genera was really the rule rather than the exception.

Procimquat, a citrus variety that is easy to locate, flowers and fruits from seed in one year or less. - Millet

If just trying to prove hybridisation between microcitrus and citropsis is possible then M. australis and M. wintersi are most readily available here in Europe and seem easier to grow than M. australasica. M. x virgata maybe interesting for its vigour but resulting hybrids may be seedless - not necessarily a bad thing unless you want to use as bridge to commercial citrus varieties.

If that is the objective why not try faustrime to get citropsis genes into a lime bloodline or faustrimedin to get into calamondin bloodline.

At a pinch as microcitrus also crosses with fortunella why not try one of the kumquats.

Yuzuquat, everything you said is what I think.
Indeed the fact that C.Wakonai flowers in less than one year is very interesting particularly because this trait is (partially) hereditary.
Bridging needs many back cross, time is the enemy.
I think this crossing (Microcitrus x Citropsis) has been possible because they are "near" ancestors, aging from the time when east Africa, India, south China and north Australia were joined.
So we must try the cross of all the Citropsis and all the Microcitrus.

Citrange: "Really? More malaria?"
I swear, this time I'll take my pills.

Foufouche on the French forum put 100€ in the pot.


You all noticed that in the same place there are C. wintersii and C. warburgiana too...
And maybe others still unknown.