Lasianthus brevidens Craib (1933:19)
A synopsis of Lasianthus (Lasiantheae, Rubiaceae) in Thailand and two additional new species
Napiroon, Tiwtawat
Chayamarit, Kongkanda
Dawson, Sally
Till, Walter
Balslev, Henrik
Phytotaxa
2020
2020-04-15
439
1
1
38
3SCM7
(Drake) Pitard (1924: 393)
Pitard
393
1924
Drake
[182,752,1922,1949]
Magnoliopsida
Rubiaceae
Lasianthus
Plantae
Gentianales
16
17
Tracheophyta
species
hispidulus
= Lasianthus brevidensCraib (1933:19). Type:― THAILAND. Ratchaburi: A. F. G. Kerr10833 ( holotypeK000777026!). T hailand:—NORTHERN-EASTERN. Loei: 16 November 1979, T. Shimizu et al. T23032(BKF). PENINSULAR. Krabi: Khao Phanom Bencha, 31 July 1993, C. Puff & K. Sridith 930731-1/4(AAU, BKF, PSU, WU), 17 July 2000, D. J. Middleton et al. 510(BKF). Nakhon Si Thammarat: Khao Luang National Park, 11 November 1951, P. Suvanakoses 131(BKF), 15 June 1953, P. Suvanakoses 119(BKF). Trang: Khao Chong, 12 August 1975, J. F. Maxwell 75-793(AAU, BKF, CMUB, PSU).
Distribution:— China, Japan(Ryukyu), Vietnam, Malaysia(Borneo), Indonesia( Sumatra, Java, Irian Jaya), and Papua New Guinea, Thailand(North-Eastern, South-Western, Peninsular).
Ecology:—Evergreen forest in shaded places at an elevation of 100‒ 600 m. Flowering in January‒February and fruiting in March‒May. Notes:―We have not seen the lectotypeof Mephitidia hispidulaDrake (1895:239)from Vietnamthat was cited in Zhu (2001)and Zhu et al. (2012). We have seen specimens identified by Zhu in 1998 as L. brevidens(a synonym) from Thailandand they matched the original description and morphological characters of L. hispidulus. It is clear that L. brevidensCraib (1933:19)is conspecific with L. hispidulus. In Thailand, Lasianthus hispidulusis closely related to L. saxorumCraib (1933:25)but differs by having: the leaf apex caudate-acuminate (not cuspidate-acuminate or acuminate); calyx campanulate, 1.5 mmlong (not obconical and less than 1 mmlong); corolla pilose on the outside and villous on the inside (not corolla pubescent outside, and pilose on the inside); drupes globose, long hirsute, 3–5 mmdiameter (not subglobose, puberulous, 3‒3.5 mmdiameter). In addition, both species differ from L. fordiiby having the leaf blade chartaceous (not coriaceous), densely hairy branches, leaf undersurface, and calyx. (not mostly glabrous or subglabrous).