<p><strong><em>Peliosanthes nagalandensis</em></strong><strong> and <em>P.</em> <em>tobuensis</em> (Asparagaceae: Nolinoideae)—two new species from Northeastern India</strong></p>

Abstract

Two new species of Asparagaceae (subfamily Nolinoideae), Peliosanthes nagalandensis and P. tobuensis, from the state of Nagaland, Northeastern India, are described and illustrated. P. nagalandensis is most closely related to P. arunachalensis, but differs mainly by the longer leaf blades, distinctly sigmoid flowering stem with a shorter peduncle and longer raceme, more numerous green to purple flowers, distally finely denticulate-erose perianth segments, basally hamately recurved anthers and papillulate pistil with an apically slightly concave ovary and a columnar style. While P. tobuensis is close to P. arunachalensis and P. sinica, but differs mainly by the strongly incurved, entire corona and ovoid pistil with obtusely conical indistinct style.

New distributional record of two species for the flora of Assam, India

“…2) based on the collected fresh specimens and literature , the taxon was identified as Peliosanthes bipiniana D. K. Roy, N. Odyuo & N. Tanaka (21) which was not recorded from Assam before this report. Peliosanthes Andrews belongs to the subfamily Nolinoideae (22) under Asparagaceae (23) and comprises of about 72 species, distributed widely over subtropical and tropical Asia covering Nepal, Bhutan, India, Bangladesh, Myanmar, China, Cambodia, Laos, Vietnam, Taiwan, Thailand, Indonesia and Malaysia (1,2,24,25). It is allied to P. subspicata N.Tanaka by the compact inflorescence, flowers nodding and large, but differing by perianth segments entire, externally green, internally dark purple, corona convex, 6-denticulate and dark purple.…”

Peliosanthes maheswariana D.Borah, N.Tanaka & Taram, sp. nov. (Asparagaceae), from Arunachal Pradesh, NE India, and P. sinica new to India

“…The new species is distinguishable from them chiefly by the larger leaf blades with more numerous longitudinal veins, longer peduncle, larger drooping (vs ascending) flowers, internally whitish yellow (vs purple or greenish purple) perianth, larger corona with a relatively narrow distal opening, and almost superior (vs distinctly half-inferior) ovary. The other three of the six species were described from NE India; P. arunachalensis (Roy et al 2017), P. nagalandensis and P. tobuensis (Odyuo et al 2020). P. maheswariana sp.…”

“…Tanaka & Kalyuzhny 2020; Averyanov et al 2021; Nguyen et al 2021; Vislobokov et al 2022) and northeastern India. From the latter region, nine species and one variety have been reported as new since 2017 (Roy et al 2017, 2020; Tanaka 2018, 2019; Borah et al 2020; Odyuo et al 2020; Taram et al 2020). Of these taxa, three species, P. arunachalensis D.K.Roy, A.A.Mao & Aver.…”

“…Of these taxa, three species, P. arunachalensis D.K.Roy, A.A.Mao & Aver. (Roy et al 2017: 15), P. nagalandensis Odyuo, D.K.Roy, N.Tanaka & A.A.Mao (Odyuo et al 2020: 286) and P. tobuensis Odyuo, D.K.Roy, Lytan, N.Tanaka & A.A.Mao (Odyuo et al 2020: 290), are known to share a long proximally creeping stem.…”

New and noteworthy species of Ophiopogon and Peliosanthes (Asparagaceae) from Laos, Vietnam and Thailand

“…These three genera are widely distributed over the temperate to tropical regions of south, southeast and east Asia (Jessop 1976, Tanaka 2001). The number of known species of this group, especially of Peliosanthes , has been rapidly increasing during the past decades (Fang 1998, Tanaka 1999, 2018, Averyanov and Tanaka 2012, Averyanov et al 2015, 2016, 2020, Vislobokov 2016, Nguyen et al 2017b, 2020, Nong et al 2019, Borah et al 2020, Odyuo et al 2020, Roy et al 2020, Tanaka and Kalyuzhny 2020, Taram et al 2020, Vislobokov et al 2020). A similar situation is found in Aspidistra Ker Gawler (1822: 628), another Asian member of Ophiopogoneae, or Nolinoideae (Lang et al 1999, Bogner and Arnautov 2004, Tillich 2005, 2014, Averyanov and Tillich 2014, Vislobokov et al 2014, Nguyen et al 2017a, Tanaka 2017).…”