Talk:Citrus

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Reverted addition of non-citrus[edit]

Was that edit so bad that it needed to be reverted? The anonymous editor added several scientific names, and most of the entries looked genuine. Was all of it wrong? --DannyWilde 13:49, 26 October 2005 (UTC)

I altered words to American spelling, with no harm meant to the author. --TKE

Merge proposals[edit]

No, Trifoliate orange and Kumquat should not be merged with Citrus. Melchoir 02:01, 20 June 2006 (UTC)

Fortunella and Poncirus are distinct genera and should have separate articles. — TheKMantalk 02:28, 20 June 2006 (UTC)
Actually, on the basis of genetic evidence these two genera should be merged into Citrus (refs: Mabberley, D. J. 1997. A classification for edible Citrus (Rutaceae). Telopea 7 (2): 167–172; Mabberley, D. J. 1998. Australian Citreae (Rutaceae) with notes on other Aurantioideae (Rutaceae). Telopea 7: 333–344.). That doesn't mean that their wiki pages should also be merged, as they remain distinct species within an expanded genus Citrus, though they should be linked from here in the Citrus species list. Something I've been meaning to do for a while, but it's a big editing job! - MPF 13:31, 20 June 2006 (UTC)
Interesting. So, does the new genus Citrus encompass the old (as in Swingle and Reece 1967) subtribe Citrinae of 13 genera, or the old tribe Citreae of 28 genera, or just the 3 we've been talking about...? Melchoir 13:55, 20 June 2006 (UTC)
Have to check on that. Unfortunately, the Telopea website was down when I tried to access it just now (seems to happen quite often! - it maybe only operates during Australian office hours or something like that) - MPF 14:58, 20 June 2006 (UTC)
Also de Araújo et al. (2003) What is Citrus? Taxonomic implications from a study of cp-DNA evolution in the tribe Citreae (Rutaceae subfamily Aurantioideae). Organisms Diversity & Evolution 3 (1): 55-62 abstract (unfortunately one of those annoying journals where you have to fork out your life savings to get an 8 page article :-(( so I'll not be able to read it - MPF 22:01, 23 June 2006 (UTC)

Editing Citrus[edit]

It has come to my attention that every time I edit this article someone reverts it to its original state. The changes I made were the following:

Species Citrus maxima - Pomelo Citrus medica - Citron Citrus reticulata - Mandarin & Tangerine Citrus aurantifolia - Key lime**

Cultivated Citrus may be derived from as few as four** ancestral species.

Prior to human cultivation, the genus Citrus originated in Southeast Asia and consisted of just a few species:

  • Citrus maxima, the pummelo, from the Malay archipelago
  • Citrus medica, the citron, from India
  • Citrus reticulata, the mandarin and similar, from China
  • Citrus aurantifolia, the key lime, from India**
  • Citrus halimii, a more recent discovery, from Thailand and Malaya

The parts that I changed are denoted by two asterisks. It's OK that they change it. The point is to make Wikipedia the best Encyclopedia possible. However, I would like that person to be aware of the following:

I have only seen ONE source that classifies Citrus aurantifolia as a hybrid. All other sources that I have seen classify it as a pure species & one of the wild four (without Citrus halimii even being mentioned). Also it is official that the genera Microcitrus & Eremocitrus are now classified by most Botanists as part of the genus Citrus. I'm not shure if the same can be said for Poncirus & Fortunella. —Preceding unsigned comment added by 64.237.255.79 (talkcontribs)

Can you provide scientific references for the acceptance of C. aurantifolia as a species, please? I'll be happy to have it so listed, once the evidence is there - thanks, MPF 22:32, 23 June 2006 (UTC)
Index Kewensis (fide ipni.org). It was named as a species, and there is no evidence either that (1) it has a published nothotaxon name, or (2) that it is actually a nothotaxon (the Nicolosi abstract says that genetic evidence shows the species to be of hybrid origin, which is not the same thing as being a nothotaxon. (I'd be happy to go on at length, because hybrid speciation is my research specialty.) If it weren't for Mabberley's (IMO mistaken) use of the name, I'd pass it off as original research. At any rate, if C. aurantifolia does in fact grow in the wild, it is not a nothospecies, whether it is of hybrid origin or not.--Curtis Clark 23:59, 29 July 2006 (UTC)
References

Morton, J. 1987. Mexican Lime. p. 168–172. In: Fruits of warm climates. Julia F. Morton, Miami, FL http://www.hort.purdue.edu/newcrop/morton/mexican_lime.html

In this work it does not directly state that it is a pure species, but it can be deduced from certain clues that the author percieves it to be one.

Examples: The Mexican lime grows wild in the warm valleys of the Himalayas and is cultivated not only in the lowlands but up to an elevation of 4,000 ft (1,200 m).

According to this Key Limes can be found in the wild. To the extent of my knowledge there are no wild hybrid citrus. Also this website has other citrus pages and they specify if it's a hybrid and how it originated.

I don't know about that... anyway, the reference is 1987. In the 2002 collection Citrus (in the article References), none of the authors claim aurantifolia as a species. Melchoir 03:50, 24 June 2006 (UTC)
They may not claim it as a species, but do they claim it as a hybrid? I would like a reference if you can give one. By the way, Clymenia polyandra & Oxanthera neocaledonica are sometimes classified as citrus. Can someone give me their point-of-view on either subject? 06:37, 24 June 2006
Mabberley (1997; A classification for edible Citrus (Rutaceae). Telopea 7 (2): 167–172) treats C. × aurantiifolia [s.i.c.] as a hybrid, one parent C. maxima, the other unknown, probably also hybrid. The other two, have to wait until the Telopea website is up again (I forgot to save a copy of Mabberley's second paper when I looked at it online) - MPF 17:52, 24 June 2006 (UTC)
I'm not shure I'm comvinced, but then I'm not a professional botanist. I will leave you to decide on the proper classification but I would get the opinion of a few more people before conforming to either classification scheme. Good luck with the article.

The Telopea site is accessible again; the two Mabberley papers can be found here:

  • [1] Mabberley, D. J. 1997. A classification for edible Citrus (Rutaceae). Telopea 7 (2): 167–172
  • [2] Mabberley, D. J. 1998. Australian Citreae (Rutaceae) with notes on other Aurantioideae (Rutaceae). Telopea 7: 333–344.

MPF 22:56, 25 June 2006 (UTC)

Mirrors my confusion. This article gives the Persion lime and Key lime as hybrids, but click on those 'hybrid' names and you get to artocles where the fruit is a full species - what is the current reality?? --Dumarest 19:41, 1 July 2006 (UTC)
I have no idea, but if you find out let me know.


Well, for all. I am tempted o use the http://www.plantnames.unimelb.edu.au/Sorting/Citrus_1.html site to go through this article and edit so that all the species names are consistent according to what is 'correct' [if this site is the gospel]. Comments please???? --Dumarest 00:10, 3 July 2006 (UTC)
It would be a lot more helpful to describe, within the article, the range of treatments popular in the scientific community and the evidence that contributes to those understandings. For that, I wouldn't trust any website; who knows how it was assembled? Melchoir 02:16, 3 July 2006 (UTC)


Consistency is the hobgoblin of petty minds, it is said. But I am feeling petty. I think that a consistent classification of Citrus here and in the linked species pages would be correct for Wikipedia, and there are more than one current analyses of the state of such classification. I am looking at taking a full modern current analysis, describing its premises, and 'consistent-izing' the applicable pages. Is this a good thing to do? opinions welcome. --Dumarest 13:47, 5 July 2006 (UTC)

Nomenclature question[edit]

In the list of species, many have something like this # Grapefruit, C. × paradisi

Now, out of ingnorance, what does that mean? I assume a hybrid, one of which is C. paradisi, the other something, but it confuses me. --Dumarest 13:55, 5 July 2006 (UTC)

You are right. Those species which carry an x before the name are hybrids. Citrus x paradisi is a hybrid of C. maxima & C. x sinensis(C. reticulata x C. maxima)
That is equally confusing. Your answer has nowhere in it the word 'paradisi' except as a mix of maxima and sinensis or of reticulata and maxima. Still leaves me blubbering. --Dumarest 20:21, 6 July 2006 (UTC)

paradisi is a name which was originally coined when the plant was believed to be a species or subspecies. If just a hybrid then the 'x' comes in...Cas Liber 23:07, 6 July 2006 (UTC)

Ponderosa lemon[edit]

Ive recently made the article ponderosa lemon but I was unsure about the the latin name. Ive put it as C.limon at the moment but i dont know. Any ideas? —Preceding unsigned comment added by Bjwebb (talkcontribs)

How about Citrus medica × Citrus ×limon?--Curtis Clark 13:58, 24 October 2006 (UTC)

Thanks for, that ive changed it to what you suggested. --Bjwebb (talk) 17:50, 24 October 2006 (UTC)

Citrus peel extract[edit]

Does anyone here have any idea about which compunds are present in the extract of Orange peels?Perhaps it varies with the species,but i am not very sure about it.Akshaysrinivasan

"ripen time" too narrow, imo. needs editing for growing locale?[edit]

the HP (consumer gardening books publisher) _Citrus_ has ripening time range charts. and IIRC if in coastal climate, with collection of certain cvs of citrus, you can have some ripening throughout the year (or near that). Lance Walheim (UC Riverside www.google.com/search?q=Lance+Walheim+UC+Riverside) contributed to the book, so i think the ripen charts should be accurate (excepting possible publishing errors!) --2z2z 09:36, 8 March 2007 (UTC)

add calamansi to 'limeade' sentence in 'culinary' section?[edit]

http://www.google.com/search?q=calamansi+juice+rop+%7C+pilipino+%7C+philippines or is calamansi juice too regional? --2z2z 14:10, 8 March 2007 (UTC)

Kinnow[edit]

Kinnow needs taxobox and species. Badagnani 17:56, 27 July 2007 (UTC)

Triphasia trifolia[edit]

The citrus relative Triphasia trifolia needs taxobox and more info. Badagnani 02:07, 2 August 2007 (UTC)

Shatkora info needed[edit]

The shatkora, a Bengali lime-like citrus fruit, needs an article and species name. Badagnani 20:16, 3 September 2007 (UTC)

Got it--it's Citrus macroptera. Badagnani (talk) 23:32, 12 January 2009 (UTC)

Citrus taxonomy[edit]

Can anyone tell me which citrus are hybrids (or have hybrid ancestors) and which are naturally evolved species? And what are the ancestors of the hybrids & hybrid species? I'd appreciate it if someone filled in the blanks, and added "species" if there were any more (No complex, recent & completely domestic hybrids like the clementine or the eremolemon). - Wyvern J. Wynderunner 21:50, 3 October 2007 (UTC)

    • Citrus species - Hybrid ancestors 1 & 2 (if applicable)/Pure species, synonymy with other species (if applicable).
  • Citrus reticulata -
  • Citrus maxima -
  • Citrus medica -
  • Citrus aurantifolia -
  • Citrus latifolia -
  • Citrus limon -
  • Citrus jambhiri -
  • Citrus volkameriana -
  • Citrus limetta -
  • Citrus limettioides -
  • Citrus limonia -
  • Citrus ponderosa -
  • Citrus meyeri -
  • Citrus unshiu -
  • Citrus deliciosa -
  • Citrus nobilis -
  • Citrus reshni -
  • Citrus aurantium -
  • Citrus bergamia -
  • Citrus sinensis -
  • Citrus paradisi -
  • Citrus natsudaidai -
  • Citrus tachibana -
  • Citrus amblycarpa -
  • Citrus depressa -
  • Citrus sudachi -
  • Citrus lumia -
  • Citrus macrophylla -
  • Citrus macroptera -
  • Citrus taiwanica -
  • Citrus ichangensis -
  • Citrus hystrix -
  • Citrus (Poncirus) trifoliata -
  • Citrus (Clymenia) polyandra -
  • Citrus (Fortunella) polyandra -
  • Citrus (Fortunella) hindsii -
  • Citrus (Fortunella) japonica -
  • Citrus (Fortunella) margarita -
  • Citrus (Fortunella) crassifolia -
  • Citrus (Fortunella) obovata -
  • Citrus (Eremocitrus) glauca -
  • Citrus (Microcitrus) garrawayi -
  • Citrus (Microcitrus) australasica -
  • Citrus (Microcitrus) inodora -
  • Citrus (Microcitrus) gracilis -
  • Citrus (Microcitrus) australis
  • Citrus (Microcitrus) waburgiana -
  • Citrus (Microcitrus) wintersii -

Need species name[edit]

The Vietnamese cam sành (whose rind is bright green, but flesh is bright orange)photo is variously called C. nobilis, C. reticulata, and C. sinensis, as well as various hybrids of the aforementioned species. Does anyone have solid information on which of these is correct? Badagnani 07:23, 19 October 2007 (UTC)

Article created at Cam sành. Badagnani 21:19, 19 October 2007 (UTC)

Deletion review for Category:Japanese citrus[edit]

See Wikipedia:Deletion review/Log/2007 November 26 Badagnani (talk) 19:11, 26 November 2007 (UTC)

Inconsistent Hybrid Nomenclature[edit]

I posted this over on Limequat, but thought there might be more attention paid to this page, and I assume that the problems I note below might apply to the many other hybrid citruses.

Limequat is listed as "Species: Citrus X Fortunella", which is a hybrid formula for a genus, not a species. Citrofortunella is another way to describe the hybrid genus, with limequat listed on that page as "Citrofortunella x floridana". List of Rutaceae genera doesn't include hybrid genera (e.g. Citrofortunella). Kumquat treats Fortunella as a subgenus of Citrus (in which case, the limequat genus would be a pretty straightforward "Citrus"). Obviously, the hybrid citruses can be named in a number of ways, but it would be good to pick a consistent standard (i.e., using either hybrid formula "Citrus x Fortunella" or condensed formula "Citrofortunella"), as well as making sure taxonomy is consistent across different (e.g., not having "Fortunella" listed as a subgenus on some pages and a genus on others) 63.78.97.2 (talk) 22:08, 18 March 2008 (UTC)

Shatkora[edit]

I see no mention here of an Indian citrus fruit named Shatkora. It is a culinary favourite amongst people of the Indian subcontinent [3] and is perhaps worth including. Saajan99 (talk) 14:32, 8 July 2008 (UTC)

Citrus inflorescences - cymes?[edit]

It is my understanding that Citrus inflorescences (at least C. sinensis) are cymose and not corymbs. This is also stated in "Biology of Citrus" by P. Spiegel-Roy and E.E. Goldschmidt. —Preceding unsigned comment added by 138.23.2.37 (talk) 22:24, 17 August 2008 (UTC)

Producers[edit]

The ranking of countries by citrus fruit production is shockingly wrong. Just look for the separated production ranking of each fruit, it simply doesn't match. If you take the features for orange, you can see that a lot of countries that are not on the list here (like Brazil, USA, Mexico) produce more oranges than the total citrus fruits that Nigeria (the 1st ranked here) produces. —Preceding unsigned comment added by 189.55.122.187 (talk) 17:47, 7 January 2009 (UTC)

Citrus Fruits and Essential Oils[edit]

Another important use of citrus fruits is the production of essential oils and this is not mentioned at all; in fact the presence of these volatile compounds in the exocarp is one of the hallmark features of a hesperidium! Seems a very big thing to overlook! These essential oils are used for all sorts of purposes, from aromatherapy (medicine) to household cleaners (remember orange-GLO, everyone?). I'm not sure how I would write this section myself, but I thought I would make note of it so those of you who are more savvy about Wikipedia's editing policies and such can work on it. 75.167.112.163 (talk) 00:57, 5 March 2010 (UTC)

Naartjie[edit]

The recent addition of this "cultivar" brings up a larger problem. I've changed the Naartjie page to update the taxonomy, but there is quite a tangle here. I've requested that the redirect at Citrus unshiu be deleted, so that Satsuma (fruit) can be moved there. Hopefully we'll soon be able to achieve a readable and detailed account of this species. Nadiatalent (talk) 14:51, 13 December 2011 (UTC)

Revision of species naming[edit]

The Plant list, produced by Kew and Missouri Botanical Gardens, has placed many of the old style hybrids listed in this article as separate species, based on WCSP reviews, see http://www.theplantlist.org/browse/A/Rutaceae/Citrus/. Therefore should we not follow these authoritative sources and edit both the names in the article and the titles of the relevant other articles. It would be nice to see plants treated as plants first and as items occasionally used for people as subsidiary to that.Brunswicknic (talk) 14:09, 18 September 2012 (UTC)