Coelogyne Lindley

Averyanov, Leonid V., Nguyen, Van Canh, Vuong, Truong Ba, Quang, Bui Hong, Nguyen, Khang Sinh, Le, Tuan Anh, Binh, Tran Duc, Maisak, Tatiana V. & Nguyen, Cuong Huu, 2025, New orchids in the flora of Vietnam X (Orchidaceae, Orchidoideae, tribe Orchideae, Epidendroideae, tribes Gastrodieae, Arethuseae, Cymbidieae, and Vandeae), Phytotaxa 681 (1), pp. 20-54 : 26

Coelogyne Lindley (1824: tab. 33).

Coelogyne cumingii Lindley (1840: 178) , Seidenfaden (1992: 113), Seidenfaden & Wood (1992: 209, fig. 89a-c), Wood & Cribb (1994: 152, fig. 13H), Comber (2001: 351, fig.), Clayton (2002: 174, fig. 22, 2 & plate 20E), Schuiteman et al. (2008: 276), Pedersen et al. (2014: 397, fig. 219).

( Fig. 3 )

Type: — SINGAPORE. Cult. Loddiges sine num. (holotype K 000079266 photo!).

Ecology and phenology (in Vietnam):—Trunk and branch epiphyte. Evergreen broad-leaved forests on granite at elevation of 1300–1500 m a.s.l. Flowers in April–May.

Distribution: — Vietnam (Lam Dong Province, Lam Ha District). Thailand, Laos, Peninsular Malaysia, Singapore, Sumatra, Borneo.

Conservation status:— According to currently available data, Coelogyne cumingii occurs at several sites in Vietnam in the northern part of Lam Ha District (Lam Dong Province) allied to Bidoup Nui Ba National Park. The area and extent of occurrence can’t be accurately estimated. This area has no official protection and currently experiencing wide anthropogenic pressure like development, agriculture and uncontrolled deforestation leading to decline in the quality of habitat. Hence, the species can only be assessed as Data Deficient (DD) based on current state of knowledge in Vietnam. The species is widespread and occurs in Borneo, Laos, Malaya, Sumatera, Thailand. And, it was reported as a very common plant in some locations of Peninsular Malaysia ( Seidenfaden & Wood 1992).

Notes: —The discovery of this species in Lam Dong Province of southern Vietnam is predictable, as it was reported earlier from Champassak Province of southern Laos (Schuiteman et al. 2008), placed about 400 km to the north-west from discovered Vietnamese locations. The morphology of the plants found in Vietnam fits in almost all characters with specimens from main area of the species distribution. The record of C. cumingii from Myanmar ( Tun 2014: 115) is regarded to be wrong (Ormerod et al. 2021: 74), belonging in fact to C. schultesii S.K.Jain & S.Das (1978: 121) . Coelogyne cumingii also was speculatively recorded from Vietnam (Schuiteman et al. 2008, POWO 2024). We have not seen any verified specimens that confirm these records.

Studied specimens: — VIETNAM, Lam Dong Province, Lam Ha District, evergreen broad-leaved forest on granite at elevation of 1300–1500 m a.s.l., herbarium prepared from cultivated plants, 11 May 2024, L. Averyanov, Nguyen Van Canh, T. Maisak, AL 3151, flowers white, lip with very light lemon center ( LE: LE 01276681 https:// en.herbariumle.ru/?t=occ&id=235145, photos of plant used for preparation of voucher specimen LE 01255032 https:// en.herbariumle.ru/?t=occ&id=228072). VIETNAM, Lam Dong Province area, plant obtained from local collectors, photos and herbarium prepared in 12 May 2024, L. Averyanov, Nguyen Van Canh, T. Maisak, AL 3188 ( LE: LE 01276680 https://en.herbariumle.ru/?t=occ&id=235144, LE 01276679 https://en.herbariumle.ru/?t=occ&id=235143, photos of plant used for preparation of voucher specimen LE 01255068 https://en.herbariumle.ru/?t=occ&id=228108).

Figures

FIGURE 3. Coelogyne cumingii. A, B. Flowering plant in culture. C. Inflorescence. D. Flower. E. Flattened parts of plant. F. Flattened sepals and petals (frontal view), pedicel and ovary, and lip (side view). G. Intact lip, adaxial side. H. Lip disc and separated side lobes. Photos by L. Averyanov, from the plant used for preparation of voucher specimen AL3151. Photo correction and design by L. Averyanov and T. Maisak.