Lasianthus foxworthyanus Craib (1933:21)

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 : 16

21. Lasianthus foxworthyanus Craib (1933:21) . Type: ― THAILAND. Narathiwat, Bacho, 11 June 1930, M. S. Kiah 24312 (isotype SING0059257 image!, K000777027!). ( Figure 3K ).

T hailand: —SOUTH-EASTERN. Trat: 15 March 1970, C. F. van Beusekom & T. Santisuk 3231 (BKF). PENINSULAR. Nakhon Si Thammarat: Khao Luang National Park, 1 April 2017, T. Napiroon 040 (BKF). Phatthalung: Khao Ban Tad Wildlife Sanctuary, Kong Rha, 1 November 2016, T. Napiroon, S. Boontheam, K. Sabuach T038 (BKF). Yala: Betong, 17 July 1993, C. Puff & K. Sridith 930717-1/5 (AAU, BKF, PSU, WU). Narathiwat: Srisakhorn, 22 December 1998, P. Puudjaa 528 (BKF).

Distribution: —Peninsular Malaysia, Thailand (South-Eastern, Peninsular).

Ecology: —Moist evergreen forest, in shaded places at an elevation of 300‒ 600 m. Flowering in June‒July and fruiting in August‒November.

Notes: ― Lasianthus foxworthyanus is often found in natural forests of peninsular Thailand. The dominant characters of this species that can be observed in the field are leaf blades oblong-lanceolate 9–16 × 3–5 cm, thinly coriaceous, fruits glabrous and subglobose when fresh, black or dark blue, puberulous, and with 4 pyrenes.

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.