What is the origin of New Zealand Lemonade (also known as Citrus Lemonade or Lemonade Citrus in NZ and AUS)?

I've seen it listed as a grapefruit/lemon hybrid:
http://www.lyndale.co.nz/catalogue/plants.php?pageNum_rs_plant=3&totalRows_rs_plant=190&vcatid=1&vsubject=&vsearch=
http://www.exotickerostliny.cz/en/katalog-rostlin-othermenu-95/citrusy-othermenu-90/78-hybridni-mandarina-a-hybridni-citrusy.html

As a mandarin/lemon hybrid:
http://www.subtropica.co.nz/index.php?page=2&action=cat_search&cat_id=7&cat=C%20-%20F&PHPSESSID=517a9a5bc2dea228609dd88006fa36f8

As a naval orange/lemon hybrid:
http://en.wikipedia.org/wiki/Lemonade_fruit

Or as a Meyer Lemon bud sport:
http://www.plantproduction.co.nz/wgplant.php?pageNum_rs_plant=10&totalRows_rs_plant=468&vsubject=&vsearch=
http://www.trademe.co.nz/home-living/outdoor-garden-conservatory/plants-trees/shrubs/auction-657044899.htm

So what is it? Clearly, they all can't be right. Is it really known what the true origin is? I think UCR gives the prudent answer as "Parents Unknown"

I have one, but it hasn't fruited yet. Got the budwood from Gene Lester.

http://www.citrusvariety.ucr.edu/citrus/lemonade.html

I have a New Zealand Lemonade tree, which must be some sort of a lemon hybrid. The tree that I have blooms year around, and can have both flowers and hanging fruit present on the tree at same time. New Zealand lemonade trees have a high level of production, producing a lot of good tasting fruit per year. As posted by Laaz, I'll tend to believe what the officals at UCR's Variety Collection say about the tree's heritage. -- "New Zealand Lemonade is reported to be a sweet lemon hybrid of unknown parentage". - Millet

Is this the same variety?

http://www.oscartintori.it/images/schede/76.JPG

I too agree that UCR's description is most appropriate, but it was amusing to see so many different claimed origins for the New Zealand Lemonade. Everybody seems to have their own story...
I have also read that it is supposed to have reasonable cold tolerance, but given all of the other "quality" information on the internet regarding it's parentage... who knows?

Marc,
I'm not sure that is the same variety, unless the NZ Lemonade originally found it's way to New Zealand from India. Also, the description of the leaves does not seem to match pictures of the NZ Lemonade, which have more of a pointed tip:
http://idtools.org/id/citrus/citrusid/factsheet.php?name=New+Zealand+Lemonade

The latin name, Citrus limettioides, seems to match though...

I ate 6 or so fruit of the NZ lemonade last year. I budded it on to a rather large potted lmeon tree IMHO it is the best of the so called sweet lemons. I got my budwood from the California CCP thru the Texas budwood bureau.

The fruit looks like a grocery store lemon and tastes like a sweet grocery store lemon. I think it is really good. IMHO the other "sweet" lemons I have tasted, sulcata and ujukitsu taste just lemony.

My NZ lemonade tree in a 10 gallon pot was a victim of my moving from Beaumont to Missouri City. I was so busy I neglected watering. It defoliated but in the last few weeks I fertilized with blood meal and it is growing back. Not so with my giant key lime. It got killed back the the graft. Luckily I got another one!

This year I get to taste lee x nova or 88-2. I topworked a large tree in the ground and it has dozens of fruit. They are not sweet yet however. The ones I've tried are definitely seedless. Next year I get to taste lee x orlando 15-150 and atlas honey mandarin which is a seedless ponkan. I topworked a friend's tree to those.

Mr. Texas wrote ""honey mandarin which is a seedless ponkan"". Why on earth would they call it a Honey mandarin? If the tree is indeed a seedless Ponkan then they should call it exactly what it is -- Seedless Ponkan. - Millet

mrtexas, is "Atlas Honey mandarin" the same as "Honey mandarin"? I have not heard that this was a seedless Ponkan. Where is that info?

Per Tree Search... http://www.treesearchfarms.com/citrus.html

Quote:

‘Atlas Honey’ Mandarin Delicious, sweet, juicy, flavorful, early maturing mandarin, hardier than most mandarins, easy to peel, dwarf variety, good for containers, somewhat seedy

http://www.eatlikenoone.com/chinese-honey-ponkan-mandarin-orange.htm

Oh brother. Could this BE more confusing? Here's more - the Honey mandarin is often a nickname for Murcott. BUT, the real Honey mandarin is NOT a Murcott (they are not one in the same). Nor is the California Honey mandarin is a Murcott (Four Winds propagates the "California Honey" mandarin, which is the REAL Honey Mandarin). Are you thoroughly confused, yet? I have a California Honey mandarin and a couple of Ponkans. They are different. Both are excellent, in the top 5 of my mandarin cultivars.

http://www.citrusvariety.ucr.edu/citrus/honey.html

I contacted Four Winds about their nomenclature (because I was confused, imagine that). They told me for sure, this is the CCPP budwood for the above cultivar, and they decided to call in the "California" Honey mandarin to make sure folks knew this was NOT Murcott. It is definitely the Honey mandarin described above, as it has very distinctive long, lanceolate leaves. If this tree gets up to 4', I would be shocked. Amazing how dwarfing Cuban Shaddock is in my soil. This tree can't be over 2 feet tall, and it is 3 years old, going on 4.

One citrus fruit, one name. Even in the case of Four Winds artificially calling their tree the "California" Honey is only adding to the problem. Four Winds should call their tree by their proper name. Made up names only cause problems. - Millet

Oh, Lordy. Bob, I agree. Almost as bad as fig names and pomegranate names, lol! Okay, so, really, Dr. Atlas lovely mandarin really should be called "Seedless Ponkan" (mrtexas, I would kill for this cultivar, btw), the Ponkan should stay "Ponkan" and not be called a Chinese Honey, the Murcott stay Murcott, and never be called a "Honey Murcott", and the Honey should just be plain "Honey". Done. I'm making the official edit. So, that's all fixed, phew. Now, just to get everyone else on board. Gosh, it's good to be a mom.