| 0 | PI 686890 | Pseudocydonia - National Arboretum 5 O.P. | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Oregon, United States | COR | | Not Available | 2016 | COLLECTED | 12/01/2016 | | | | | Breeding material | A population of seedlings was generated from seed collected by Kevin Conrad at the National Arboretum in Washington D.C. in 2010 from Pseudocydonia sinensis accession NA 29637. The seedlot and seedlings are NPGS accession PI 660759. About 8 seedling trees were established in the field collection at NCGR in 2011 from NCGR seed inventory CCYD 158. Seedling 5 (= CCYD 158.005) was the most precocious seedling, producing about a dozen large fruit (~650 g) in 2016. This accession (CCYD 181) constitutes open pollinated seed collected from CCYD 158.005. | 1943369 | PI 686890 |
| 1 | PI 686887 | Pseudocydonia Sheffield's | Pseudocydonia sinensis (Thouin) C. K. Schneid. | China | COR | | | 2015 | COLLECTED | 2013 | | | | | Uncertain improvement status | | 1925352 | PI 686887 |
| 2 | PI 660759 | Pseudocydonia National Arboretum | Pseudocydonia sinensis (Thouin) C. K. Schneid. | | COR | | | 2010 | | | | | | | Cultivated material | | 1854106 | PI 660759 |
| 3 | PI 655050 | 'Chinese' | Pseudocydonia sinensis (Thouin) C. K. Schneid. | California, United States | COR | | Not Available | 1996 | DEVELOPED | 1888 | | | | | Uncertain improvement status | | 1522046 | PI 655050 |
| 4 | PI 37954 NA 89260 | F. N. Meyer 1190 | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Shandong Sheng, China | NA | | Not Available | 1947 | COLLECTED | 03/11/1914 | Heze (formerly Caozhoufu). | | | Grown on sandy loam. | Cultivated material | In July 2026, Tony Vlahakis (IPM specialist) found an old blue-painted plastic tag with the PI number for this collection in the Japanese Woodland, in the vicinty of NA 29637-H [now 89260-H], originally accessioned in 1967 as unknown source (old National Arboretum plants). The material would have come from Glenn Dale between the late 1930s and the late 1940s, and the tag is of the same style as old azalea tags that Tony and Barbara Bullock have found primarily on the historic Glenn Dale Hillside on Mt Hamilton with Bell [Glenn Dale] numbers. Tags of that kind have not previously been found in the modern-day Asian Collections. In the old Nursery (Plot) 5 card file, there were 9 plants of "Chaenomeles sinensis" present November 17, 1948 in row 26 [originally, there had been 36 plants]; they were listed as "35929-37954." According to the 1947 inventory of all USNA plants, there were "2 lots" of Chaenomeles sinensis at the time. Under the entry for PI 37954, it is noted that the prior introductions were PI 35458 and 35639, both Frank Meyer collections from China, and it seems likely that the second USNA lot would have been PI 35639 due to the similarity in number. For PI 37954, which clearly applies to former NA 29637-H [now NA 89260-H], USDA Plant Inventory number 39 reads: "37948 to 37955. From China. Collected by Mr. Frank N. Meyer, Agricultural Explorer for the Department of Agriculture. Received May 1, 1914. Cuttings of the following; quoted notes by Mr. Meyer. [...] 37954. Chaenomeles lagenaria cathayensis (Hemsl.) Schneider. (Cydonia cathayensis Hemsl.) Malaceae. Quince. From Tsaochowfu, Shantung, China. "(No. 1190. March 11, 1914.) A large-fruited variety of Chinese quince, much grown on the sandy loam around Tsaochowfu." On the facing page, this PI number was annotated as Chaenomeles sinensis (Thouin) Koehne, a synonym of Pseudocydonia sinensis. Additinoally, a herbarium voucher dated to at least 1929 for material identified as PI 37954 has been identified as Pseudocydonia sinensis, and clearly belongs to that taxon. For PI 35639, USDA Plant Inventory No. 35 reads, "35601 to 35657. Collected by Mr. Frank N. Meyer, agricultural explorer. Received June 14, 1913. Seeds of the following; quoted notes by Mr. Meyer: [...] 35639. Chaeonomeles cathayensis (Hemsl.) Schneider. Quince. (Pyrus cathayensis Hemsl.) "(Tsinan, Shantung, Chine. No. 1839a. April 9, 1913.) A Chinese quince, the fruits of which are used by the better classes of Chinese as room perfumers. These fruits can easily be kept throughout the winter until late spring. Some foreign missionaries have learned how to make preserves and jellies from these quinces, though the meat is quite woody. This Chinese quince grows to be a tall shrub and it might perhaps be profitable to grow it in the mild-wintered sections of hte United States, so as to supply the Chinese colonies in America with one of their favorite fruits. The American people themselves may also come to like these fruits for the strong pleasant aroma they produce. Chinese name _Mu kua_." Regarding PI 35458, USDA Plant Inventory No. 35 reads, "35456 tp 35458. Collected by Mr. F. N. Meyer, agricultural explorer for the Department of Agriculture. Received May 27, 1913. Quoted notes by Mr. Meyer. [...] 35458. Chaenomeles cathayensis (Hemsl.) Schneider. Quince. (Pyrus cathayensis Hemsl.) "(Tsinan, Shantung, China, April 4, 1913.) The Chinese quince, which is used by the rich Chinese as a room perfumer, but foreign missionaries have learned to use it for making preserves and jellies. The Chinese call it _mu kua_, meaning 'wooden gourd.' This species is said to have come from Chowcho, Shantung Province." Given that the latter two PI number entries were collected in the same location, and the cited origin for the material all seems to be the same as PI 34954, listed variously by Meyer as Tsaochowfu and Chowcho, Shantung [Shandong]. Since the other surviving NA 29637 plant, NA 29637-P, could have originally belonged to one or the other of two Frank Meyer field collections with two different PI numbers, that plant will remain under the old number out of an abundance of caution. However, it seems likely that plants of the same PI number would have been more likely to be of similar size at the time of transplanting, and that identical-numbered plants would have been placed in close proximity to one another for aesthetic reasons, so in all likelihood the GCA trees near the discovered label would have belonged to PI 37954. | 2197126 | PI 37954 NA 89260 |
| 5 | PI 62405 | No. 1438 | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Beijing Shi, China | | | Historic | 1925 | COLLECTED | 11/19/1924 | | | | | | | 1663615 | PI 62405 |
| 6 | PI 46129 | Mu kua | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Hubei Sheng, China | | | Historic | 1918 | COLLECTED | 12/21/1917 | | | | | | | 1611163 | PI 46129 |
| 7 | PI 46130 | Mu li | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Hubei Sheng, China | | | Historic | 1918 | COLLECTED | 12/31/1917 | | | | | | | 1611164 | PI 46130 |
| 8 | PI 38795 | No. 2065a | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Shaanxi Sheng, China | | | Historic | 1914 | COLLECTED | 01/19/1914 | | | | | | | 1603719 | PI 38795 |
| 9 | PI 37954 | No. 1190 | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Shandong Sheng, China | | | Historic | 1914 | COLLECTED | 03/11/1914 | | | | | | | 1602782 | PI 37954 |
| 10 | PI 22432 | Ta pai li | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Hebei Sheng, China | | | Historic | 1908 | COLLECTED | 01/17/1908 | | | | | | | 1521724 | PI 22432 |
| 11 | PI 21001 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Kanagawa, Japan | | | Historic | 1907 | COLLECTED | | | | | | | | 1533060 | PI 21001 |
| 12 | PI 20338 | No. 567a | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Primorye, Russian Federation | | | Historic | 1907 | COLLECTED | 10/06/1906 | | | | | | | 1577381 | PI 20338 |
| 13 | PI 17726 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | China | | | Historic | 1906 | COLLECTED | | | | | | | | 1575156 | PI 17726 |
| 14 | PI 21253 | Ya kwam li | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Beijing Shi, China | | | Historic | 1906 | COLLECTED | | | | | | | | 1533207 | PI 21253 |
| 15 | PI 21254 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | China | | | Historic | 1906 | COLLECTED | | | | | | | | 1533208 | PI 21254 |
| 16 | PI 17178 | No. 39 | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Hubei Sheng, China | | | Historic | 1906 | COLLECTED | | Chang-li | | | | | | 1574711 | PI 17178 |
| 17 | PI 16911 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Beijing Shi, China | | | Historic | 1905 | COLLECTED | | | | | | | | 1574396 | PI 16911 |
| 18 | PI 16916 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Beijing Shi, China | | | Historic | 1905 | COLLECTED | | | | | | | | 1574400 | PI 16916 |
| 19 | PI 16924 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Beijing Shi, China | | | Historic | 1905 | COLLECTED | | | | | | | | 1574408 | PI 16924 |
| 20 | PI 9239 | 'Waseaka' | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Kanagawa, Japan | | | Historic | 1903 | COLLECTED | 08/1902 | | | | | | | 1548684 | PI 9239 |
| 21 | PI 9240 | 'Ofurugawa' | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Kanagawa, Japan | | | Historic | 1903 | COLLECTED | 08/1902 | | | | | | | 1548685 | PI 9240 |
| 22 | PI 9241 | No. 1035 | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Kanagawa, Japan | | | Historic | 1903 | COLLECTED | | | | | | | | 1734534 | PI 9241 |
| 23 | PI 9242 | 'Tai haka' | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Kanagawa, Japan | | | Historic | 1903 | COLLECTED | 08/1902 | | | | | | | 1548686 | PI 9242 |
| 24 | PI 9243 | 'Chiojuro' | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Kanagawa, Japan | | | Historic | 1903 | COLLECTED | 08/1902 | | | | | | | 1548693 | PI 9243 |
| 25 | PI 8209 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Ionía Nísia, Greece | | | Historic | 1902 | COLLECTED | | | | | | | | 1547151 | PI 8209 |
| 26 | PI 6362 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Ionía Nísia, Greece | | | Historic | 1901 | COLLECTED | | | | | | | | 1543656 | PI 6362 |
| 27 | PI 6183 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Ionía Nísia, Greece | | | Historic | 1901 | COLLECTED | | | | | | | | 1543423 | PI 6183 |
| 28 | PI 6186 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Ionía Nísia, Greece | | | Historic | 1901 | COLLECTED | | | | | | | | 1543426 | PI 6186 |
| 29 | PI 6188 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Ionía Nísia, Greece | | | Historic | 1901 | COLLECTED | | | | | | | | 1543428 | PI 6188 |
| 30 | PI 5376 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | District of Columbia, United States | | | Historic | 1900 | COLLECTED | | | | | | | | 1541531 | PI 5376 |
| 31 | PI 2881 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | China | | | Historic | 1899 | COLLECTED | | | | | | | | 1550045 | PI 2881 |
| 32 | PI 2892 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Japan | | | Historic | 1899 | COLLECTED | | | | | | | | 1537090 | PI 2892 |
| 33 | NA 83072 | NA 83072 | Pseudocydonia sinensis (Thouin) C. K. Schneid. | | NA | | Not Available | 2016 | | | | | | | Uncertain improvement status | Full name as recorded at U.S. National Arboretum: Pseudocydonia sinensis. Note from J. Postman at Corvallis to K. Conrad, USNA: "...I can offer you some seedlings of Pseudocydonia likely from a different source than those at the Nat. Arboretum. I bought seed from Sheffields Seeds last year that were of Chinese origin, and germination was nearly 100 [percent]. The leaf phenotype appears different than those from the seed you sent me a few years ago." | 2153215 | NA 83072 |
| 34 | NA 81483 | NA 81483 | Pseudocydonia sinensis (Thouin) C. K. Schneid. | | NA | | Not Available | 2013 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Pseudocydonia sinensis. Forest planting in Chinese container, 14 trees in all. Trees grown from seed by donor. | 2152561 | NA 81483 |
| 35 | NA 78659 | F. N. Meyer 1190 or 1839a | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Shandong Sheng, China | NA | | Not Available | 2002 | COLLECTED | PRE 03/12/1914 | Jinan [Tsinan] or Heze (formerly Caozhoufu). | | | | Cultivated material | Seedling from tree in GCA Circle in Asian Collection (NA 29637-T), now removed due to fireblight susceptibility. From the record of the seed parent accession, NA 29637: In July 2026, Tony Vlahakis (IPM specialist) found an old blue-painted plastic tag with the PI number for this collection in the Japanese Woodland, in the vicinty of NA 29637-H [now 89260-H], originally accessioned in 1967 as unknown source (old National Arboretum plants). The material would have come from Glenn Dale between the late 1930s and the late 1940s, and the tag is of the same style as old azalea tags that Tony and Barbara Bullock have found primarily on the historic Glenn Dale Hillside on Mt Hamilton with Bell [Glenn Dale] numbers. Tags of that kind have not previously been found in the modern-day Asian Collections. In the old Nursery (Plot) 5 card file, there were 9 plants of "Chaenomeles sinensis" present November 17, 1948 in row 26 [originally, there had been 36 plants]; they were listed as "35929-37954." According to the 1947 inventory of all USNA plants, there were "2 lots" of Chaenomeles sinensis at the time. Under the entry for PI 37954, it is noted that the prior introductions were PI 35458 and 35639, both Frank Meyer collections from China, and it seems likely that the second USNA lot would have been PI 35639 due to the similarity in number. For PI 37954, which clearly applies to former NA 29637-H [now NA 89260-H], USDA Plant Inventory number 39 reads: "37948 to 37955. From China. Collected by Mr. Frank N. Meyer, Agricultural Explorer for the Department of Agriculture. Received May 1, 1914. Cuttings of the following; quoted notes by Mr. Meyer. [...] 37954. Chaenomeles lagenaria cathayensis (Hemsl.) Schneider. (Cydonia cathayensis Hemsl.) Malaceae. Quince. From Tsaochowfu, Shantung, China. "(No. 1190. March 11, 1914.) A large-fruited variety of Chinese quince, much grown on the sandy loam around Tsaochowfu." On the facing page, this PI number was annotated as Chaenomeles sinensis (Thouin) Koehne, which is a synonym of Pseudocydonia sinensis. Additionally, a herbarium voucher dated to at least 1929 for material identified as PI 37954 has been identified as Pseudocydonia sinensis, and clearly belongs to that taxon. For PI 35639, USDA Plant Inventory No. 35 reads, "35601 to 35657. Collected by Mr. Frank N. Meyer, agricultural explorer. Received June 14, 1913. Seeds of the following; quoted notes by Mr. Meyer: [...] 35639. Chaeonomeles cathayensis (Hemsl.) Schneider. Quince. (Pyrus cathayensis Hemsl.) "(Tsinan, Shantung, Chine. No. 1839a. April 9, 1913.) A Chinese quince, the fruits of which are used by the better classes of Chinese as room perfumers. These fruits can easily be kept throughout the winter until late spring. Some foreign missionaries have learned how to make preserves and jellies from these quinces, though the meat is quite woody. This Chinese quince grows to be a tall shrub and it might perhaps be profitable to grow it in the mild-wintered sections of hte United States, so as to supply the Chinese colonies in America with one of their favorite fruits. The American people themselves may also come to like these fruits for the strong pleasant aroma they produce. Chinese name _Mu kua_." Regarding PI 35458, USDA Plant Inventory No. 35 reads, "35456 tp 35458. Collected by Mr. F. N. Meyer, agricultural explorer for the Department of Agriculture. Received May 27, 1913. Quoted notes by Mr. Meyer. [...] 35458. Chaenomeles cathayensis (Hemsl.) Schneider. Quince. (Pyrus cathayensis Hemsl.) "(Tsinan, Shantung, China, April 4, 1913.) The Chinese quince, which is used by the rich Chinese as a room perfumer, but foreign missionaries have learned to use it for making preserves and jellies. The Chinese call it _mu kua_, meaning 'wooden gourd.' This species is said to have come from Chowcho, Shantung Province." Given that the latter two PI number entries were collected in the same location, and the cited origin for the material all seems to be the same as PI 34954, listed variously by Meyer as Tsaochowfu and Chowcho, Shantung [Shandong]. Since the origin of what was recorded as 29637-H seems to clearly belong to a single Meyer collection and PI number, I am assigning it a separate accession number, and it will be recorded as NA 89260-H to reflect the new information. The other surviving plant, NA 29637-P, will remain under the old number because its field collection number and PI number could be one or the other of the two sets of choices. However, it seems likely that plants of the same PI number would have been more likely to be of similar size at the time of transplanting, and that identical-numbered plants would have been placed in close proximity to one another for aesthetic reasons, so in all likelihood the GCA trees near the discovered label would have belonged to PI 37954. | 2151421 | NA 78659 |
| 36 | CCHA 17 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | | | | Historic | 1987 | DONATED | 12/04/1987 | | | | | | | 1000653 | CCHA 17 |
| 37 | CCHA 15 | Uzbekistan 666 | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Tashkent, Uzbekistan | NA | | Not Available | 1987 | DONATED | 04/24/1987 | | | | | | | 1000583 | CCHA 15 |
| 38 | CCHA 10 | Pseudocydonia - Tsuchiya City | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Japan | NA | | Not Available | 1983 | DONATED | 04/08/1983 | | | | | | | 1000405 | CCHA 10 |
| 39 | CCHA 12 | | Pseudocydonia sinensis (Thouin) C. K. Schneid. | China | | | Historic | 1982 | DONATED | 12/13/1982 | | | | | | | 1000479 | CCHA 12 |
| 40 | NA 29637 | F. N. Meyer 1190 and/or 1839a | Pseudocydonia sinensis (Thouin) C. K. Schneid. | Shandong Sheng, China | NA | | Not Available | 1947 | COLLECTED | PRE 03/12/1914 | Jinan [Tsinan] or Heze (formerly Caozhoufu). | | | | Cultivated material | In July 2026, Tony Vlahakis (IPM specialist) found an old blue-painted plastic tag with the PI number for this collection in the Japanese Woodland, in the vicinty of NA 29637-H [now 89260-H], originally accessioned in 1967 as unknown source (old National Arboretum plants). The material would have come from Glenn Dale between the late 1930s and the late 1940s, and the tag is of the same style as old azalea tags that Tony and Barbara Bullock have found primarily on the historic Glenn Dale Hillside on Mt Hamilton with Bell [Glenn Dale] numbers. Tags of that kind have not previously been found in the modern-day Asian Collections. In the old Nursery (Plot) 5 card file, there were 9 plants of "Chaenomeles sinensis" present November 17, 1948 in row 26 [originally, there had been 36 plants]; they were listed as "35929-37954." According to the 1947 inventory of all USNA plants, there were "2 lots" of Chaenomeles sinensis at the time. Under the entry for PI 37954, it is noted that the prior introductions were PI 35458 and 35639, both Frank Meyer collections from China, and it seems likely that the second USNA lot would have been PI 35639 due to the similarity in number. For PI 37954, which clearly applies to former NA 29637-H [now NA 89260-H], USDA Plant Inventory number 39 reads: "37948 to 37955. From China. Collected by Mr. Frank N. Meyer, Agricultural Explorer for the Department of Agriculture. Received May 1, 1914. Cuttings of the following; quoted notes by Mr. Meyer. [...] 37954. Chaenomeles lagenaria cathayensis (Hemsl.) Schneider. (Cydonia cathayensis Hemsl.) Malaceae. Quince. From Tsaochowfu, Shantung, China. "(No. 1190. March 11, 1914.) A large-fruited variety of Chinese quince, much grown on the sandy loam around Tsaochowfu." On the facing page, this PI number was annotated as Chaenomeles sinensis (Thouin) Koehne, which is a synonym of Pseudocydonia sinensis. Additionally, a herbarium voucher dated to at least 1929 for material identified as PI 37954 has been identified as Pseudocydonia sinensis, and clearly belongs to that taxon. For PI 35639, USDA Plant Inventory No. 35 reads, "35601 to 35657. Collected by Mr. Frank N. Meyer, agricultural explorer. Received June 14, 1913. Seeds of the following; quoted notes by Mr. Meyer: [...] 35639. Chaeonomeles cathayensis (Hemsl.) Schneider. Quince. (Pyrus cathayensis Hemsl.) "(Tsinan, Shantung, Chine. No. 1839a. April 9, 1913.) A Chinese quince, the fruits of which are used by the better classes of Chinese as room perfumers. These fruits can easily be kept throughout the winter until late spring. Some foreign missionaries have learned how to make preserves and jellies from these quinces, though the meat is quite woody. This Chinese quince grows to be a tall shrub and it might perhaps be profitable to grow it in the mild-wintered sections of hte United States, so as to supply the Chinese colonies in America with one of their favorite fruits. The American people themselves may also come to like these fruits for the strong pleasant aroma they produce. Chinese name _Mu kua_." Regarding PI 35458, USDA Plant Inventory No. 35 reads, "35456 tp 35458. Collected by Mr. F. N. Meyer, agricultural explorer for the Department of Agriculture. Received May 27, 1913. Quoted notes by Mr. Meyer. [...] 35458. Chaenomeles cathayensis (Hemsl.) Schneider. Quince. (Pyrus cathayensis Hemsl.) "(Tsinan, Shantung, China, April 4, 1913.) The Chinese quince, which is used by the rich Chinese as a room perfumer, but foreign missionaries have learned to use it for making preserves and jellies. The Chinese call it _mu kua_, meaning 'wooden gourd.' This species is said to have come from Chowcho, Shantung Province." Given that the latter two PI number entries were collected in the same location, and the cited origin for the material all seems to be the same as PI 34954, listed variously by Meyer as Tsaochowfu and Chowcho, Shantung [Shandong]. Since the origin of what was recorded as 29637-H seems to clearly belong to a single Meyer collection and PI number, I am assigning it a separate accession number, and it will be recorded as NA 89260-H to reflect the new information. The other surviving plant, NA 29637-P, will remain under the old number because its field collection number and PI number could be one or the other of the two sets of choices. However, it seems likely that plants of the same PI number would have been more likely to be of similar size at the time of transplanting, and that identical-numbered plants would have been placed in close proximity to one another for aesthetic reasons, so in all likelihood the GCA trees near the discovered label would have belonged to PI 37954. | 2144131 | NA 29637 |