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[Botany • 2022] Clerodendrum peninsulare (Lamiaceae) • A New Species from peninsular Thailand and A Note on C. palmatolobatum
Summary Clerodendrum peninsulare, a species restricted to upper peninsular Thailand, is described and illustrated as new to science. It has long pendulous inflorescences with white flowers similar to those of C. angustipetalum, C. nutans and C. umbratile which are also found in peninsular Thailand, but it differs in its calyx and corolla. The conservation status of C. peninsulare is assessed as Near Threatened (NT). Clerodendrum palmatolobatum, a species previously thought to be restricted to Cambodia and Vietnam, is reported in Thailand and Laos and is lectotypified. It is illustrated and compared with the morphologically similar species C. intermedium, C. japonicum and C. paniculatum. The conservation status of C. palmatolobatum is assessed as Least Concern (LC). Key Words: Cambodia, Indo-China, Laos, lectotypification, taxonomy, Vietnam
Clerodendrum peninsulare Satthaphorn, A.J.Paton & Leerat. sp. nov. Type: Thailand, Ranong, Khlong Nakha, Kapoe, 17 Nov. 1973, Santisuk 598 (holotype BKF SN064510!). RECOGNITION. Clerodendrum peninsulare is morphologically similar to C. umbratile in leaf shape and pendulous thyrsoid inflorescences with white to creamy-white flowers and oblong-obovate corolla lobes but differs in its relatively shorter calyx tube and smaller lobes, shorter style and reflexed fruiting calyx lobes. A comparison between C. peninsulare and C. umbratile is presented in Table 1 and Figs 1 – 3. HABITAT. Semi-evergreen forest, mossy forest and hill evergreen forest, alt. 80 – 1200 m. ETYMOLOGY. The specific epithet ‘peninsulare’ refers to its being restricted to peninsular Thailand. VERNACULAR NAME. Chut ra ya (ฉัตรระย้า) Jiratthi Satthaphorn, Alan J. Paton and Charan Leeratiwong. 2022. Clerodendrum peninsulare, A New Species of Clerodendrum (Lamiaceae) from Thailand and A Note on C. palmatolobatum. Kew Bulletin. DOI: 10.1007/s12225-022-10000-z ฉัตรระย้า (Clerodendrum peninsulare Satthaphorn, A.J.Paton & Leerat.) ถูกรายงานเป็นพืชชนิดใหม่ของโลกในการศึกษา พนมสวรรค์ใบแฉก (Clerodendrum palmatolobatum Dop) ถูกรายงานครั้งแรกที่ประเทศกัมพูชาและมีกา |
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