Comparative fruit differences Citrus japonica, Kumquat https://en.wikipedia.org/wiki/Kumquat Citrus microcarpa, Calamansi, Calamondin https://en.wikipedia.org/wiki/Calamansi
Dr. Gurcharan Singh Retired Associate Professor SGTB Khalsa College, University of Delhi, Delhi-110007 Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. https://www.gurcharanfamily.com/ On Mon, Dec 29, 2025 at 6:57 PM Gurcharan Singh <[email protected]> wrote: > Typical images of C. japonica > https://www.alamy.com/kumquat-fruit-citrus-japonica-image465935152.html > > > > > Dr. Gurcharan Singh > Retired Associate Professor > SGTB Khalsa College, University of Delhi, Delhi-110007 > Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. > https://www.gurcharanfamily.com/ > > > On Mon, Dec 29, 2025 at 6:55 PM J.M. Garg <[email protected]> wrote: > >> Thanks a lot, Singh ji >> >> On Mon, 29 Dec 2025 at 18:53, Gurcharan Singh <[email protected]> wrote: >> >>> Garg ji, I have given my comments on all posts on that page >>> I have been working on this small tree growing just below our flat. >>> Initially I also thought it as C. japonica. My description resembled Citrus >>> madurensis Lour as described in eFlora of Pakistan (Fruit size 3 cm x 2.7 >>> cm), with C. microcarpa Bunge as its synonym. eFlora of China considered C. >>> madurensis as synonym of C. japonica Thunb. (but silent on C. microcarpa). >>> that led me to my earlier identification as japonica. >>> Now after a lot of studies I have concluded that 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), young fruit and mature >>> fruit for comparison. >>> >>> >>> >>> >>> >>> >>> Dr. Gurcharan Singh >>> Retired Associate Professor >>> SGTB Khalsa College, University of Delhi, Delhi-110007 >>> Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. >>> https://www.gurcharanfamily.com/ >>> >>> >>> On Mon, Dec 29, 2025 at 3:24 PM J.M. Garg <[email protected]> wrote: >>> >>>> Thanks, Singh ji, >>>> What about other observations at >>>> https://efloraofindia.com/efi/citrus-japonica/? >>>> >>>> On Sat, 27 Dec 2025 at 11:31, Gurcharan Singh <[email protected]> >>>> wrote: >>>> >>>>> 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 >>>>> >>>>> On Friday, December 26, 2025 at 8:36:04 PM UTC+5:30 Gurcharan Singh >>>>> wrote: >>>>> >>>>>> 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 >>>>>> >>>>>> >>>>>> On Friday, December 26, 2025 at 5:55:46 PM UTC+5:30 Gurcharan Singh >>>>>> wrote: >>>>>> >>>>>>> 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. >>>>>>> >>>>>>> On Monday, December 8, 2025 at 8:10:09 AM UTC+5:30 Gurcharan Singh >>>>>>> wrote: >>>>>>> >>>>>>>> one more image >>>>>>>> >>>>>>>> On Monday, December 8, 2025 at 8:09:28 AM UTC+5:30 Gurcharan Singh >>>>>>>> wrote: >>>>>>>> >>>>>>>>> One more image >>>>>>>>> >>>>>>>>> On Wednesday, October 29, 2025 at 8:04:22 PM UTC+5:30 Gurcharan >>>>>>>>> Singh wrote: >>>>>>>>> >>>>>>>>>> Some more images >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> Dr. Gurcharan Singh >>>>>>>>>> Retired Associate Professor >>>>>>>>>> SGTB Khalsa College, University of Delhi, Delhi-110007 >>>>>>>>>> Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. >>>>>>>>>> https://www.gurcharanfamily.com/ >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> On Wed, Oct 29, 2025 at 7:53 PM Gurcharan Singh < >>>>>>>>>> [email protected]> wrote: >>>>>>>>>> >>>>>>>>>>> *Citrus japonica* Thunb., Nova Acta Regiae Soc. Sci. Upsal., >>>>>>>>>>> ser. 2, 3: 208 (1780) >>>>>>>>>>> Syn: *Citrus madurensis* Lour., *Citrus x aurantium subsp. >>>>>>>>>>> japonica *(Thunb.) Engl. >>>>>>>>>>> Common Name: Round Kumquat, >>>>>>>>>>> Small shrub or small tree barely 2-3 m tall. Leaves with very >>>>>>>>>>> narrowly winged petiole less than 1 cm long, obovate, elliptic to >>>>>>>>>>> broadly >>>>>>>>>>> ovate, obtuse with crenulate margin. Flower usually solitary or up >>>>>>>>>>> to 3 in >>>>>>>>>>> a fascicle, subsessile, petals about 5 mm long, fruit usually less >>>>>>>>>>> than 3 >>>>>>>>>>> cm, globose with thin rind, 4-6 chambered, orange yellow when ripe. >>>>>>>>>>> Clicked from Vikas Puri, Delhi >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Dr. Gurcharan Singh >>>>>>>>>>> Retired Associate Professor >>>>>>>>>>> SGTB Khalsa College, University of Delhi, Delhi-110007 >>>>>>>>>>> Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. >>>>>>>>>>> https://www.gurcharanfamily.com/ >>>>>>>>>>> >>>>>>>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "eFloraofIndia" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To view this discussion, visit >>>>> https://groups.google.com/d/msgid/indiantreepix/89cab031-2b8c-4a05-95f1-a7492b9a66ecn%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/indiantreepix/89cab031-2b8c-4a05-95f1-a7492b9a66ecn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> >>>> >>>> -- >>>> With regards, >>>> J.M.Garg, >>>> https://efloraofindia.com/ >>>> >>> >> >> -- >> With regards, >> J.M.Garg, >> https://efloraofindia.com/ >> > -- You received this message because you are subscribed to the Google Groups "eFloraofIndia" group. 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