Lasianthus reticulatus Blume (1826:1000)

Napiroon, Tiwtawat, Chayamarit, Kongkanda, Dawson, Sally, Till, Walter & Balslev, Henrik, 2020, A synopsis of Lasianthus (Lasiantheae, Rubiaceae) in Thailand and two additional new species, Phytotaxa 439 (1), pp. 1-38 : 26-27

50. Lasianthus reticulatus Blume (1826:1000) . Type: ― INDONESIA. Java, Seribu, C. L. Blume s.n. (holotype L0000700; isotype L0000701, L0000702 all images!). ( Figure 3Z ).

= Lasianthus maingayi Hooker (1880:188) . Type (lectotype designated by Zhu 2012):― MALAYSIA. without locality, 13 April 1867, A.

C. Maingay 1699 (lectotype K000763917!; isolectotype K000763918!).

= Lasianthus caloneurus Schumann (1902:339) . Type: ― THAILAND. Trat: Koh Chang Island, 2 March 1900, E. J. Schmidt 683 (holotype

C10018243 image!).

T hailand: —SOUTH-EASTERN. Trat: Koh Chang, 2 August 1973, G. Murata, N. Fukuoka & C. Phengklai T17440 ( BKF). PENINSULAR. Ranong: 7 September 1984, N. Fukuoka, T. Santisuk & W. Nanakhon T 35955 ( BKF). Nakhon Si Thammarat: Khao Luang National Park, 17 Mar 1962, P. Suvarnakoses 1867 ( BKF), Lansaga district , 14 December 1985, J. F. Maxwell 85-1112 (BKF, CMUB, PSU) ; without locality and year, 31 October, T. Smitinand 1021 ( BKF). Trang: Khao Chong, 11 September 1990, C. Puff & V. Urchirakal 900911-1/4 (BKF, PSU, WU). Satun: Thalae Ban National Park, 4 November 1990, K. Larsen et al. 41106 (AAU, BKF, PSU). Songkhla: Ton Nga Chang Wildlife Sanctuary, 21 August 1992, C. Niyomdham & P. Puudjaa 3138 ( BKF). Narathiwat: Waeng district , 13 December 1971, K. Bunchuai 1895 ( BKF) ; 2 July 1972, P. Nitrasirirak 215 ( BKF) .

Distribution: — Malaysia (Peninsular, Borneo), Singapore, Indonesia (Sumatra, Java, Kalimantan, Sulawesi), Brunei, Philippines (Palawan), Thailand (South-Eastern, Peninsular).

Ecology: —Moist evergreen forest, in shaded places at an elevation of 200‒ 300 m. Flowering in July‒October and fruiting in November‒February.

Notes: ―Thai specimens of Lasianthus reticulatus were identified as L. maingayi Hook.f. (1880:188) until this name was synomised by Zhu et al. (2012). From our herbarium studies and field observations we agree that L. maingayi can not be separated from L. reticulatus .

Figures

FIGURE 3A‒O. Lasianthus werefound in Thai naturalforests:A) L. appressus;B) &C) L.attenuatus;D) L.chinensis;E) L.chrysoneurus; F) L. constrictus; G) L. cyanocarpus; H) L. ellipsoideus; I) L. ellipticus; J) L. fordii; K) L. foxworthyanus; L) & M) L. hirsutus; N) L. hispidulus and O) L. inodorus.