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Cercis (redbud)
Taxonomy
Cercis was named by Linnaeus (1753). It is extant. Its type is Cercis siliquastrum.
It was assigned to Caesalpiniaceae by Knowlton (1919), Knowlton (1926); to Leguminosae by Brown (1959), Liu et al. (1996); and to Cercidoideae by Li et al. (2021), Wang and Sun (2022).
It was assigned to Caesalpiniaceae by Knowlton (1919), Knowlton (1926); to Leguminosae by Brown (1959), Liu et al. (1996); and to Cercidoideae by Li et al. (2021), Wang and Sun (2022).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1753 | Cercis Linnaeus |
| 1919 | Cercis Knowlton |
| 1926 | Cercis Knowlton |
| 1959 | Cercis Brown p. 128 |
| 1996 | Cercis Liu et al. |
| 2021 | Cercis Li et al. p. 1327 |
| 2022 | Cercis Wang and Sun |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. Cercis Linnaeus 1753 [redbud]
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†Cercis borealis Newberry 1882
Cercis canadensis Linnaeus 1753
†Cercis eocenica Lesquereux 1872
†Cercis nevadensis Knowlton 1901
†Cercis parvifolia Lesquereux 1883
Cercis siliquastrum Linnaeus 1753
†Cercis spokanensis Knowlton 1926
†Cercis truncata Lesquereux 1883
†Cercis wilcoxiana Berry 1916
†Cercis zekuensis Li et al. 2021
†Cercis zhangpuensis Wang and Sun 2022
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| X. Li et al. 2021 | Beginning on page 1329, the authors provide evidence for the placement of Cercis zekuensis in Cercis.
''Fabaceae commonly have a distinctive fruit type referred to as legume or pod, which is readily discriminated from other families. Within the fabaceous subfamilies, many distantly related genera usually bear pods with a narrow wing exclusively attached along the ventral suture, such as Cercis (Figs. 5, 6), Zenia Chun (Jia & Manchester, 2014). Fortunately, Herendeen & Dilcher (1991) and Jia & Manchester (2014) pointed out that extant members of Cercis except C. chingii are uniformly characterized by a veinless placental wing. In other words, the presence of such a marginal wing may be a synapomorphy of non‐C. chingii species of this genus, allowing for confident identification of related fossil legumes (Meyer & Manchester, 1997). Therefore, this autapomorphy in combination with other features (e.g., fruit shape) can guarantee that our present fossil fruits are attributed to extant Cercis (Cercidoideae, Fabaceae)." |
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 2009 | |||||
Age range
Maximum range based only on fossils: base of the Chadronian to the top of the Middle Pleistocene or 37.00000 to 0.12900 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Collections (30 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Eocene | China (Jilin) | Cercis miochinensis (223891) | |
| Late/Upper Eocene - Early/Lower Oligocene | USA (Colorado) | Cercis parvifolia (39837 39839 39849 39851) | |
| Chadronian | USA (Colorado) | Cercis parvifolia (24209) | |
| Early/Lower Oligocene | USA (Oregon) | Cercis maurerae (35220 35221 35235 35236 35237) | |
| Oligocene | China (Yunnan) | Cercis sp. (223846) | |
| Oligocene | USA (Montana) | Cercis spokanensis (23793) | |
| Oligocene - Miocene | USA (Montana) | Cercis parvifolia (24315) | |
| Late/Upper Oligocene - Early/Lower Miocene | USA (Montana) | Cercis sp., Cercis parvifolia (23330) | |
| Miocene - Oligocene | USA (Montana) | Cercis parvifolia (23975) | |
| Early/Lower Miocene - Middle Miocene | China (Yunnan) | Cercis miochinensis (223826) | |
| Miocene | China (Qinghai) | Cercis miochinensis (223892) | |
| Miocene | USA (Montana) | Cercis parvifolia (23973) | |
| Miocene | USA (Washington) | Cercis spokanensis (224390) | |
| Burdigalian | China (Shandong) | Cercis miochinensis (223803) | |
| Langhian | China (Fujian) | Cercis zhangpuensis (224405 224407) | |
| Middle Miocene | China (Fujian) | Cercis zhangpuensis (240938) | |
| Middle Miocene | Ecuador (Azuay) | Cercis sp. (31012 31015) | |
| Early/Lower Clarendonian | USA (Nevada) | Cercis carsoniana (27662) | |
| Tortonian - Messinian | Japan (Gunma) | Cercis miochinensis (21258) | |
| Early/Lower Pleistocene | Japan (Tokyo) | Cercis chinensis (224546) | |
| Middle Pleistocene | China (Beijing) | Cercis blackii (224024) |