Two new combinations in Pitardella (Rubiaceae) and first record of the genus in the Malay Peninsula Author Chen, Junhao 0000-0001-8822-169X Singapore Botanic Gardens, 1 Cluny Road, Singapore 259569, Singapore & Department of Biological Sciences, 16 Science Drive 4, Singapore 117558, Singapore junhao_chen@nparks.gov.sg Author Ng, Xin Yi Native Plant Centre, Pasir Panjang Nursery, 100 K Pasir Panjang Road, Singapore 118526 Author Wong, Khoon Meng 0000-0002-1950-786X Singapore Botanic Gardens, 1 Cluny Road, Singapore 259569, Singapore wkm2000@gmail.com text Phytotaxa 2024 2024-09-05 664 2 146 150 https://doi.org/10.11646/phytotaxa.664.2.7 journal article 10.11646/phytotaxa.664.2.7 1179-3163 Pitardella kelantansis (Tirveng.) Junhao Chen & K.M.Wong , comb. nov. Basionym:— Porterandia kelantansis Tirveng., Biogeographica 79(1): 38 (2003) . Type:— Peninsular Malaysia , Kelantan , Wiart et al. 4478 ( holotype P [ P 02274606]). Distribution and habitat:— Pitardella kelantansis is known only from the type locality in Kelantan , Peninsular Malaysia . It occurs in secondary forest at an elevation of 300–650 m ( Tirvengadum 2003 ). Notes:— Porterandia kelantansis was described by Tirvengadum (2003) based on a single specimen Wiart et al. 4478 (P). The holotype lacks a proper collection label: it has no date and no precise locality, with just “ Kelantan ” and an annotation in K.M. Kochummen’s hand “ Tarenna sp. near to T. fragrans but different. Probably new and new record for Malaya”. It also has Tirvengadum’s very own determination slip which labelled the specimen as “ Pitardella kelantensis ( sic ) Tirveng.”. Tirvengadum (2003) erroneously stated in his protologue that the corolla lobes of this species are up to 9.6 cm long while the corolla tube is 2 cm long, suggesting that the corolla lobes exceed the tube in length. The holotype specimen clearly indicates that the corolla lobes are less than 1 cm long and distinctly shorter than the corolla tube (c. 2 cm long).