Details for: RRUT 50, Citrus japonica Thunb., 'MEIWA'


Summary Data
Taxonomy:
Citrus japonica Thunb.
Cultivar:
'MEIWA'
Origin:
Developed – China
Received by NPGS:
Nov 1987
Improvement Status:
Cultivar
Form Received:
Plant
Life Form:
Tree
Life Habit:
Tree
Availability
FormQuantityNoteInventoryCart
Plant1 countPlease use comment field to indicate germplasm type being requested and quantity. RRUT 50 PL
 
Restrictions
Interstate Shipment Restricted by Federal Seed Act
https://www.ldaf.state.la.us/ldaf-programs/seed-programs/seed-regulatory-and-testing/
  • USA – Louisiana (as Fortunella japonica; see state regulation: Citrus Canker Quarantine)
Images (4 total. Click on image for more.)

Image

Core Passport Data
Taxonomy:
Citrus japonica Thunb.
Cultivar:
'MEIWA'
Origin:
Developed – China
Received by NPGS:
Nov 1987
Improvement Status:
Cultivar
Form Received:
Plant
Life Form:
Tree
Life Habit:
Tree
Source History
Developed

China

1770.
Japan
Comment: 'Meiwa' is so-called because it was introduced to Japan from China during the reign of Emporer Meiwa (1764 - 1771).
Donated
1955.
Florida, United States
Comment: Sent to USDA Indio as seed. Accession information for Meiwa currently at USHRL incomplete and may not be same accession.
Donor(s):
20 October 1965.
California, United States
Comment: According to CCPP records. the bud source was located at 4E-13D-11, planted 1961.
Donor(s):
November 1987.
California, United States

Donor(s):
Accession Names and Identifiers
'MEIWA'
Type: Cultivar name
Group: KUMQUAT

RRUT 50
Type: Site identifier

VI 277
Type: Quarantine identifier
Calavan, E. Claire Dept of Plant Pathology, University of California, Riverside

Narrative
Rec'd as 'Marumi' (see narrative). No record of accession number from donating organ (US Date and Citrus Station, Indio) so no way to trace parentage in Indio Accession Book. However, 'Meiwa' (CRC 3833/PI 539722) was C-55-119 (USDCS) and C-55-118 was 'Marumi' (adjacent tree at Indio). Both USDCS kumquats were OPS from seed rec'd from USDA Orlando, FL. 'Meiwa' is a round kumquat of superior quality and relatively large size. It commonly has more numerous sections than other kumquats (usually 7), a sweeter rind, and no to few seeds. It is generally considered the best kumquat for eating and is widely grown in Chekiang Province, PR China, and to some extent in Fukuoka Prefecture, Japan. It is less cold hardy than 'Nagami'. (Information from The Citrus Industry, Vol 1, 1967 and other sources on file at the Repository). (RRK, 08/2006)
Citrus japonica Thunb.
Genus:
Citrus
Family:
Rutaceae
Subfamily:
Aurantioideae
Tribe:
Aurantieae
Subtribe:
Citrinae
Nomen number:

10724
Place of publication:

Nova Acta Regiae Soc. Sci. Upsal. 3:199. 1780 (Fl. jap. 292. 1784)
Verified:
04/17/2020 by ARS Systematic Botanists.
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Homotypic Synonym(s)
Citrus ×aurantium L. var. japonica (Thunb.) Hook. f.
Fortunella japonica (Thunb.) Swingle

Heterotypic Synonym(s)
Common names
LanguageNameAlternate namenoteseqCitation
EnglishChangshou kumquat as Fortunella obovata1Swingle, W. T. & P. C. Reece. 1967. The botany of Citrus and its wild relatives. Note: a probable garden hybrid
Englishgolden-bean kumquat as Fortunella hindsii var. chintou1Swingle, W. T. & P. C. Reece. 1967. The botany of Citrus and its wild relatives. Note: as Fortunella hindsii var. chintou
EnglishHong Kong kumquat as Fortunella hindsii1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL. Note: as Fortunella hindsii
Englishmarumi kumquat as Fortunella japonica1Verheij, E. W. M. & R. E. Coronel, eds. 1991. Edible fruits and nuts. In: Faridah Hanum, I. & L. J. G. van der Maesen, eds., Plant Resources of South-East Asia (PROSEA) 2:169. Note: as Fortunella japonica
Englishmeiwa kumquat as Fortunella crassifolia1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL. Note: as Fortunella crassifolia
Englishnagami kumquat as Fortunella margarita1Verheij, E. W. M. & R. E. Coronel, eds. 1991. Edible fruits and nuts. In: Faridah Hanum, I. & L. J. G. van der Maesen, eds., Plant Resources of South-East Asia (PROSEA) 2:117. Note: as Fortunella margarita
Englishoval cumquat as Fortunella margarita1Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource). Note: as Fortunella margarita
Englishoval kumquat as Fortunella margarita1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL. Note: as Fortunella margarita
Englishround cumquat as Fortunella japonica1Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource). Note: as Fortunella japonica
Englishround kumquat as Fortunella japonica1Wiersema, J. H. & B. León. 1999. World economic plants: a standard reference CRC Press, Boca Raton, FL. Note: as Fortunella japonica
Chinesejin gan金柑as Citrus japonica2Wu Zheng-yi & P. H. Raven et al., eds. 1994-. Flora of China (English edition). Note: = Citrus japonica Thunb.
Frenchkumquat marumi as Fortunella japonica2Courboulex, M. & H. de Lorrain. 1997. Les agrumes: oranges, citron, pamplemousses, kumquats. Note: re. French common names
Frenchkumquat meiwa as Fortunella crassifolia2Feuillet, C. 1998. pers. comm. Note: re. French common names as Fortunella crassifolia
Frenchkumquat nagami as Fortunella margarita2Courboulex, M. & H. de Lorrain. 1997. Les agrumes: oranges, citron, pamplemousses, kumquats. Note: re. French common names
GermanHongkong-Kumquat as Fortunella hindsii2Erhardt, W. et al. 2002. Zander: Handwörterbuch der Pflanzennamen, 17. Auflage Note: as Fortunella hindsii
GermanMarumikumquat as Fortunella japonica2Encke, F. et al. 1993. Zander: Handwörterbuch der Pflanzennamen, 14. Auflage Note: as Fortunella japonica
Germanovale Kumquat as Fortunella margarita2Erhardt, W. et al. 2002. Zander: Handwörterbuch der Pflanzennamen, 17. Auflage Note: as Fortunella margarita
GermanOvalkumquat as Fortunella margarita2Encke, F. et al. 1993. Zander: Handwörterbuch der Pflanzennamen, 14. Auflage Note: as Fortunella margarita
Germanrunde Kumquat as Fortunella japonica2Erhardt, W. et al. 2002. Zander: Handwörterbuch der Pflanzennamen, 17. Auflage Note: as Fortunella japonica
Swedishrund kumquat as Fortunella japonica2Aldén, B., S. Ryman, & M. Hjertson. 2012. Svensk Kulturväxtdatabas, SKUD (Swedish Cultivated and Utility Plants Database; online resource)
Annotations
  • Nomenclature Name Change: 20 Apr 2020, from Fortunella crassifolia Swingle to Citrus japonica Thunb.
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Pedigree
Description:
'Meiwa' is thought to be a naturally occuring hybrid of F. japonica and F. margarita. Swingle, who originally decribed it, later did not consider it to deserve species rank (The Citrus Industry, 1967, Vol I, p 335). Any unique selection events about the current accession are not known.