Three New Taxa and a New Record of <i>Lasianthus</i> (Rubiaceae) in Thailand

Napiroon, Tiwtawat; Balslev, Henrik; Poopath, Manop; Chamchumroon, Voradol; Vajrodaya, Srunya; Chayamarit, Kongkanda

doi:10.5735/085.055.0402

Cited by 3 publications

(4 citation statements)

References 5 publications

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“…To assess the nobility of the new species and confirm distribution records in Laos, we consulted the taxonomic literature (Dang et al 2015, 2016, Naiki et al 2015, Napiroon et al 2018, Pham 2000, Pitard 1924, Zhu 2001, 2011, 2012 and herbarium specimens housed in BKF, FOF, FU, HNL, KAG, TNS and VNM, and those digitized images available at JSTOR Global Plants (https://plants.jstor.org/), Muséum National d'Histoire Naturelle (https://www.mnhn.fr/) and Chinese Virtual Herbarium (http://www.cvh.ac.cn/). The measurements for the description below are based on the herbarium specimens we collected in our field surveys.…”

Section: Morphological Observationsmentioning

confidence: 99%

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Two new species and a new record of Lasianthus (Rubiaceae) in Laos

et al. 2023

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Section: Morphological Observationsmentioning

confidence: 99%

“…Comparison of Lasianthus laoticus with three morphologically similar species. Data on L. kailarsenii, and L. longipedunculatus and L. lancilobus were retrieved from the protologue Napiroon et al (2018), Parker (1925) and Zhu (2012), as well as their type specimens, respectively.…”

Section: Lasianthus Bolavenensismentioning

confidence: 99%

Two new species and a new record of Lasianthus (Rubiaceae) in Laos

et al. 2023

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“…The genus Lasianthus belongs to the Rubiaceae family consisted of 230 recorded species (Zhu 1998;Davis et al 2009;Zhu et al 2012;Napiroon et al 2018). Morphologically the genus is characterized by shrubs or trees (small trees) habitus; often with indumentum on the branches, petioles and the lower surface of the…”

Section: Introductionmentioning

confidence: 99%

A survey of the genus Lasianthus in Mount Burangrang, West Java

Cahyanto,

Efendi,

Khairun Nisa

et al. 2023

TJB

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A survey of the genus Lasianthus and its morphological study based on living specimens was conducted at the Mt. Burangrang, West Java, in order to update the existing Lasianthus data. Sampling was carried out in three regencies around the Mt. Burangrang: West Bandung, Subang and Purwakarta. A total of 19 species were recorded from Mt. Burangrang. Those species covered three sections: sect. Nudiflorae (nine species), sect. Lasianthus (nine species) and sect. Stipulares (one species). Based on the collected specimens, the delimitation of the Asian Lasianthus as having 3-9 pyrenes is no longer applicable. The specimens of L. capitatus from the Mt. Burangrang contained 9-12 pyrenes. The existence of L. rufus (Korth.) Miq. is also discussed. The details of morphological description of the Mt. Burangrang Lasianthus are provided. URL: https://www.upjs.sk/pracoviska/botanicka-zahrada/odborne-aktivity/contents-abstracts/

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“…In Thailand, Napiroon et al (2020) have updated the list and enumerated 68 species based on herbarium specimens and results of their intensive field survey in the natural forests. Based on the synopsis and new species report of the Thai Lasianthus species, the genus is divided into two majors groups characterized by shape of cymes: sessile ordominantly pedunculated (Napiroon et al, 2018a;Napiroon et al, 2018b;Napiroon et al, 2018c;Napiroon et al, 2020). Also, presence and absence of bracts and bracteoles are useful characters for classification in Lasianthus.…”

Section: Introductionmentioning

confidence: 99%

Lasianthus ranongensis (Rubiaceae), a new species from Andaman tropical rainforest Thailand

Napiroon

Sinbumroong²,

Poopath

2021

PeerJ

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We describe Lasianthus ranongensis Sinbumr. & Napiroon as a new species in the genus Lasianthus. The new taxon is intensively discussed through taxonomic affinities and information on its habitat, distribution and conservation status is provided. Moreover, line drawings and stereo microscope images of important fertile organs are demonstrated. The new species is morphologically similar to L. stipularis but differs in its having flattened branches (vs. terete), leaf blade elliptic-oblong shape of 15.0–20.0 × 4.0–6.0 cm (vs. oblanceolate-oblong 12.0–16.0 × 3.0–5.5 cm), 9–12 pairs of veins (vs. 9–10 pairs), stipule 5–7 mm long, half covering cymes (vs. 10–12.5 mm long, entirely covering cymes), four or five bracts narrowly lanceolate, 2.5–3.0 mm long (vs. bracts numerous, broadly triangular, 10–15 mm), flowers with cupular calyx (vs. with campanulate calyx), corolla villous on internal surface, and six or seven lobed (vs. pubescent on internal surface and four lobed) and drupes with five pyrenes (vs. with four pyrenes). It is also similar to L. pseudo-stipularis, but from which it is obviously distinguished by its stipule half covers cymes, secondary veins have 9–12 pairs of secondary veins, cupular calyx shape, six or seven lobed corolla, and drupe with five pyrenes, whereas L. pseudo-stipularis has stipule entirely covering cymes, 7–8 pairs of secondary veins, obconic calyx, four lobed corolla, and drupe with four pyrenes.

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Three New Taxa and a New Record of Lasianthus (Rubiaceae) in Thailand

Cited by 3 publications

References 5 publications

Two new species and a new record of Lasianthus (Rubiaceae) in Laos

Two new species and a new record of Lasianthus (Rubiaceae) in Laos

A survey of the genus Lasianthus in Mount Burangrang, West Java

Lasianthus ranongensis (Rubiaceae), a new species from Andaman tropical rainforest Thailand

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