Abstract
The article deals with description of a new species of epiphytic orchid, viz. Gastrochilus pseudocalceolaris S. Dey, L. Phom, Av. Bhattacharjee, Moaakum & K. Eshuo, along with detailed description, photographs, photo-plates, and taxonomic note. The new species, collected from Mt. Yingyushang, Longleng district, Nagaland in India, is morphologically most similar to Gastrochilus calceolaris (Buch.-Ham. ex Sm.) D. Don, but differs in having much shorter stem and features of labellum. The types have been stored to CAL for future reference.
References
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Bhattacharjee, A., Agrawala, D.K., Jalal, J.S. & Deori, C. (2021) Three new synonyms in Gastrochilus (Orchidaceae) with notes on typification of Gastrochilus calceolaris and misreport of Gastrochilus changjiangensis from India. Botany Letters 169 (1): 106–118. https://doi.org/10.1080/23818107.2021.2000889</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Bhattacharjee, A. (2022, ined.) Revision of the genus Gastrochilus D. Don (Orchidaceae) in India. Report submitted to Botanical Survey of India, Kolkata.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Buchanan-Hamilton, F. ex Smith, J.E. (1818) Aerides n. 11 (Addenda & Corrigenda). In: Rees, A., The cyclopædia; or, Universal dictionary of arts, sciences, and literature 39. Longman, Hurst, Rees, Orme & Brown [etc.], London.</span></span></span>
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<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kuntze, C.E.O. (1891) Revisio generum plantarum:vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum 2. A. Felix, Leipzig and others, pp. 661. https://doi.org/10.5962/bhl.title.327</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Lindley, J. (1833) Cleisostoma acaule. In: Genera and species of Orchidaceous Plant. Ridgways, Piccadilly, London, pp. 227.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Liu, Q., Song, Y., Jin, X.-H. & Gao, J.-Y. (2019) Phylogenetic relationships of Gastrochilus (Orchidaceae) based on nuclear and plastid DNA data. Botanical Journal of the Linnean Society 189: 228–243. https://doi.org/10.1093/botlinnean/boy084</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Ormerod, P. & Kumar, C.S. (2020) A new Bhutanese Gastrochilus (Orchidaceae), and another transfer in Indian Cylindrolobus. Harvard Papers in Botany 25 (1): 125–127. https://doi.org/10.3100/hpib.v25iss1.2020.n16</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Singh, S.K., Agarwala, D.K., Jalal, J.S., Dash, S.S., Mao, A.A. & Singh, P. (2019) Orchids of India a pictorial guide. Botanical Survey of India, Kolkata.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Bhattacharjee, A. (2022, ined.) Revision of the genus Gastrochilus D. Don (Orchidaceae) in India. Report submitted to Botanical Survey of India, Kolkata.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Buchanan-Hamilton, F. ex Smith, J.E. (1818) Aerides n. 11 (Addenda & Corrigenda). In: Rees, A., The cyclopædia; or, Universal dictionary of arts, sciences, and literature 39. Longman, Hurst, Rees, Orme & Brown [etc.], London.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Don, D. (1825) Prodromus Florae Nepalensis: sive Enumeratio vegetabilium quae in itinere per Nepaliam proprie dictam et regiones conterminas, ann. 1802-1803. Detexit atque legit d. d. Franciscus Hamilton, (olim Buchanan) Accedunt plantae a. d. Wallich nuperius missae. J. Gale, Londini. https://doi.org/10.5962/bhl.title.86</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Govaerts, R., Bernet, P., Kratochvil, K., Gerlach, G., Carr, G., Alrich, P., Pridgeon, A.M., Pfahl, J., Campacci, M.A., Baptista, D.H., Tigges, H., Shaw, J., Cribb, P.J., George, A., Kreutz, K. & Wood, J.J. (2022) World checklist of Orchidaceae. The Board of Trustees of the Royal Botanic Gardens, Kew. Available from: http://wcsp.science.kew. org/home.do (accessed 4 September 2022)</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Kuntze, C.E.O. (1891) Revisio generum plantarum:vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum 2. A. Felix, Leipzig and others, pp. 661. https://doi.org/10.5962/bhl.title.327</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Lindley, J. (1833) Cleisostoma acaule. In: Genera and species of Orchidaceous Plant. Ridgways, Piccadilly, London, pp. 227.</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Liu, Q., Song, Y., Jin, X.-H. & Gao, J.-Y. (2019) Phylogenetic relationships of Gastrochilus (Orchidaceae) based on nuclear and plastid DNA data. Botanical Journal of the Linnean Society 189: 228–243. https://doi.org/10.1093/botlinnean/boy084</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Ormerod, P. & Kumar, C.S. (2020) A new Bhutanese Gastrochilus (Orchidaceae), and another transfer in Indian Cylindrolobus. Harvard Papers in Botany 25 (1): 125–127. https://doi.org/10.3100/hpib.v25iss1.2020.n16</span></span></span>
<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Singh, S.K., Agarwala, D.K., Jalal, J.S., Dash, S.S., Mao, A.A. & Singh, P. (2019) Orchids of India a pictorial guide. Botanical Survey of India, Kolkata.</span></span></span>