Citrus × microcarpa Bunge, Enum. Pl. China Bor.: 10 (1833) (syn: × Citrofortunella microcarpa (Bunge) Wijnands; × Citrofortunella mitis (Blanco) J.W.Ingram & H.E.Moore ; Citrus × mitis Blanco ; Citrus × mitis f. gekkitsu Hayata ; Citrus × mitis f. shikikitsu Hayata );
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Artificial cross is C. japonica × C. reticulata as per POWO;
As per efi thread:
fruits of C. japonica would have fruits smaller than 1.5 cm, 3-4 chambered with 3-4 seeded mature fruit, skin smooth shining.
C. x microcarpa Bunge on the other hand has larger fruits 2-4 cm, more look of mandarin, especially when young (because it is hybrid between mandarin-Citrus reticulata and C. japonica: that is why size is larger than japonica and smaller than mandarin. more important fruit is more than 5 chambered and more than 6 seeds (see my cut fruit),
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Kumquat – California – 281113 – RK : Attachments (7). 1 post by 1 author.
Citrus japonica – Rutaceae http://en.wikipedia.org/wiki/Kumquat Los Altos – last of US plant series – May-June 2013 – pic of fruit taken – 08/07/13 – & the rest 18/07/13. Late morning. Had thought i would not be present when flowers had opened satisfactorily – decided to try my luck just 1/2 an hr before departure for airport – was delighted to see quite a load of flowers:) The fruit is just over an inch in diameter & can be eaten whole – rind & all!
This I suppose is C. x microcarpa
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yes it looks like Atalantia monophylla
Was lucky to see a couple of ripe fruits on the same plant yesterday.
Attachments (3)
could not this be just the run of the mill nagpur santara. i just bought some and they thay this same fluffy looking wrinkled skin and the knobby distal end
yes I agree with …, not Atalantia or Pamburus
Thank you all for the feedback.
The fruits were very tiny, approx half an inch.
The pictures have been taken using a zoom.
The unripe ones posted earlier in the same post were the size of a pea.
Noted. citruses of same sp can be many sizes, unless its commercially grown, where nurseries do most likely mass production in tissue explants etc
Pl. check tiny orange like fruits of ×Citrofortunella microcarpa
Since it is a cultivated plant it may be kumquat fruit; Citrus japonica
Thanks, … What id the difference between Citrus japonica and ×Citrofortunella microcarpa ?
Synonyms according to most databases, though not very clear
Catalogue of life considers Citrus microcarpa Bunge an accepted name with Citrofortunella microcarpa (Bunge) D. O. Wijnands as synonym
Kew Database considers C. x microcarpa Bunge as unplaced with Citrofortunella microcarpa (Bunge) D. O. Wijnands as synonym, does not list C. japonica
As of today C. x microcarpa Bunge is accepted name according to POWO and COL
Please tell me the name of this Rutaceae (??) : 7 posts by 3 authors. Attachments (3)
Clicked in Delhi last week.
Could be a species of Atalantia. But not sure in the absence of flowers
I think Citrus mitis Blanco (Chinese orange), an ornamental plant….
I express my sincere thanks to you for kindly telling the name.
It is Citrus japonica Thunb. as per images and details herein.
This also looks C. x microcarpa.
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Rutaceae Week : Tree for ID : Delhi : 080512 : AK-3:
A small cultivated tree, hardly 5 feet in height.
Kindly id.
x Citrofortunella microcarpa
It is Citrus japonica Thunb. as per images and details herein.
Fortunella japonica….. Round Kumquat.
Citrus x microcarpa Bunge according to me.
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Citrus plant seen in the resort where we were staying.
Species id please.
Look like Calamondin [ x Citrofortunella microcarpa (Bunge) Wijnands]- an intergeneric hybrid of Citrus reticulata and Fortunella japonica, known only in cultivation.
Fruit size when mature ?
I found only the flowers and green fruits during our short stay at Corbett. No idea about the size of the ripe ones. It was a small plant, barely 2-3 feet. Not a tree.
It is Citrus japonica Thunb. as per images and details herein.
But there is a difference in both the flowers, these and the ones seen in Delhi.
Both identified as the same Species.
Citrus x microcarpa according to me.
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Citrus japonica from Delhi-GS29102025-1: 7 high res. images
Clicked from Vikas Puri, Delhi
It would be interesting to know whether this plant is round Kumquat (Citrus japonica Lour.) or Calamondin, Calamansi (Citrus x microcarpa Bunge).
eFlora of Pakistan treats Citrus microcarpa Bunge as synonym of C. madurensis Lour, with fruits 30 x 27 mm. eFlora of China however, treats C. madurensis Lour. as synonym of C. japonica Thunb. (also followed by POWO) but records fruit size 9-10 mm.
In our plant fruits are mostly 25 to 40 mm in size.
Please help in resolving. The tree is still is fruit, so I can verify any feature.
I am now convinced it is Citrus x microcarpa
https://www.gardenia.net/plant/citrus-microcarpa
https://en.wikipedia.org/wiki/Calamansi
and not Citrus japonica
https://en.wikipedia.org/wiki/Kumquat
One more confirmation
Today Dr Vijay Sulladmath Retired Principal Scientist, Fruit Crops, identified it as Citrus x mitis Blanco
Luckily for me, it is synonym of C. x microcarpa according to POWO.
Fresh images today (27.12.25)
4 images.
What about other observations at
https://efloraofindia.com/efi/citrus-japonica/?
C. x microcarpa Bunge on the other hand has larger fruits 2-4 cm, more look of mandarin, especially when young (because it is hybrid between mandarin-Citrus reticulata and C. japonica: that is why size is larger than japonica and smaller than mandarin. more important fruit is more than 5 chambered and more than 6 seeds (see my cut fruit), young fruit and mature fruit for comparison.
The small tree of C. x microcarpa with ripe fruits now.
1 high res. image.
Ornamental Oranges for ID : 180711 : AK-1:
Taken at a private terrace garden in Pune, Maharashtra on 24/12/2005.
Didn’t taste them….but I’m told they are sour.
I had this miniature orange plant bought from a vendor from Darjeeling. The fruit is very sour even when ripe. The young fruits are used to make achar. I am also waiting for ID.
Could be Fortunella japonica (Citrus japonica / Citrus fortunella)
yes, these are commonly called chinese oranges and are very bitter and sour. but they make a wonderful bitter marmalade and pickle. They are also preserved whole in a brandy and sugar syrup to make delicious liqueur.
I got one of these too last year and though mine is a small plant it already has about 5 fruits on it. I have been looking for it’s ID too and I thought it might be the Calamondin orange. Not sure though.
This should also be C. microcarpa Bunge
Date : 22 April 2020
Looks Citrus x microcarpa Bunge
C. japonica would have fruits around 1cm, oblong (typical japonica) or round kumquat (formerly separate species but now C. japonica)
My ID is correct.
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References:
POWO