我国西南植物区系的分异: 椿榆属和臭椿属化石的启示

贾林波, 苏涛, 李伟成, 李树峰, 黄永江, 周浙昆

The floristic differentiation of Southwest China: Insights from Cedrelospermum and Ailanthus fossils

Linbo Jia, Tao Su, Weicheng Li, Shufeng Li, Yongjiang Huang, Zhekun Zhou

图6 我国西南植物区系分异示意图。A: 西藏双湖晚渐新地层西藏椿榆; B: 西藏申扎晚始新世地层西藏椿榆; C: 西藏双湖晚渐新世地层大果臭椿; D: 西藏班戈中始新世卡瓦奇栾树; E: 西藏双湖晚渐新世地层西藏似沙巴棕; F: 云南马关晚始新世地层亚洲椿榆; G, H: 云南马关晚始新世地层古臭椿; I: 云南马关晚始新世地层栾树属(未定种); J: 云南马关晚始新世地层滇桐属(未定种); K: 云南马关晚始新世地层似沙巴棕属(未定种); L: 横断山绿绒蒿; M: 藏波罗花; N: 苞叶大黄; O, P: 臭椿; Q: 复羽叶栾树; R: 滇桐; S: 美丽蒲葵。比例尺为5 mm。

Fig. 6 The hypothesized floristic differentiation of Southwest China. A, Cedrelospermum tibeticum from the late Oligocene of Shuanghu, Xizang; B, C. tibeticum from the late Eocene of Shenzha, Xizang; C, Ailanthus maximus from the late Oligocene of Shuanghu, Xizang; D, Koelreuteria kvacekii from the middle Eocene of Bange, Xizang; E, Sabalites tibetensis from the late Oligocene of Shuanghu, Xizang; F, C. asiaticum from the late Eocene of Maguan, Yunnan; G, H, A. confucii from the late Eocene of Maguan, Yunnan; I, K. sp. from the late Eocene of Maguan, Yunnan; J, Craigia sp. from the late Eocene of Maguan, Yunnan; K, Sabalites sp. from the late Eocene of Maguan, Yunnan; L, Meconopsis pseudointegrifolia; M, Incarvillea younghusbandii; N, Rheum alexandrae; O, P, A. altissima; Q, K. bipinnata; R, Craigia yunnanensis; S, Livistona jenkinsiana. Scale bar = 5 mm.