Two new species of Callerya Endl. (Leguminosae: Papilionoideae) from Thailand

Abstract

Callerya chlorantha and C. tenasserimensis, here illustrated and described as new to science, are found in dry deciduous or bamboo forest in Kanchanaburi and Ratchaburi provinces in Thailand. Callerya chlorantha, characterized by having pale green flowers that are rare in the genus, grows on limestone. This species is considered as Data Deficient (DD) at this time because there are not yet sufficient data about its distribution, abundance or threats. Callerya tenasserimensis has glabrous leaves and stems and rather small, purple or maroon flowers with golden-brown hairs on the calyx and abaxial side of the standard petal. The conservation status of this species is assessed as Vulnerable (VU).

Morphological, anatomical and genetic diversity of Nanhaia speciosa (Champ. ex Benth.) J.Compton & Schrire from Northern Vietnam

“…It can be seen that geographical location and climate conditions affect the morphology of genotypes (Wang et al 2022b). The morphological descriptive results were consistent with that of Nahaia speciosa (Sirichamorn et al 2016;Compton et al 2019). They are characterized by their prostrate or climbing twining vines, reaching heights of 1-5 meters and often intermingling among rocks and scrub.…”

The Callerya Group redefined and Tribe Wisterieae (Fabaceae) emended based on morphology and data from nuclear and chloroplast DNA sequences

“…The Callerya group sensu Schot (1994); Lôc and Vidal (2001); Wei and Pedley (2010) and Sirichamorn et al (2016) is not supported in its entirety in our analyses but rather, what emerges are four elements comprising the IRLC, each fully supported here (Fig. 1; Table 3), i.e.…”

“…Callerya was revised by Schot (1994) and was treated as belonging in Tribe Millettieae (see Table 1). Schot recognised 19 species from China, south-east Asia and Australasia and since then many more species have been described, bringing the total number to 33 (Sirichamorn et al 2016). All species sensu Schot (1994) except C.atropurpurea and C.vasta , are vigorous climbing or scandent woody shrubs.…”

“…The genus Whitfordiodendron is reinstated at generic level from Callerya s.l. (Schot, 1994) and a new genus Kanburia is described from only recently collected material (Sirichamorn et al 2016). Sister group relationships with Kanburia (Clade C3) are generally not supported, although in the ITS analyses the strongest (although still poor) support is with Serawaia (Table 3).…”

“…but Kanburia lacks bracteoles, the flowers are much smaller, 1–1.4 cm long (vs. 1.6–2.8 cm), the wings equal the keel in length (vs. much shorter than keel) and the style is shorter, 1–3 mm long (vs. 6–9 mm long). Molecular evidence for the segregation of this genus is compelling (see figs 3 and 4 in Sirichamorn et al (2016: 45, 46, 48).…”