Dendrophthoe Glabrescens (Blakely) Barlow (Loranthaceae) - An Addition to the Flora of Tamil Nadu, India

Abstract

Dendrophthoe glabrescens (Blakely) Barlow is being reported for the first time from Tamil Nadu. Detailed taxonomic description, illustration and scanned images of specimens are also given.

Dendrophthoe longensisL.J. Singh, A new species ofDendrophthoe(Loranthaceae) from Andaman and Nicobar Islands, India

“…Among the Dendrophthoe, this is the only species which has 4-merous corollas as a consistent character. Thus, the several structural peculiarities out lined (Singh et al, 2016;Singh & Murugan, 2013;Singh & Ranjan, 2013).…”

“…Diversified preference and specificity of host for loranths mistletoes have been recorded time to time by various authors (Barlow, 1997; Barlow & Weins, 1977; Bernys & Graham, 1988; Downy, 1998; Hawksworth, 1983; Hawksworth & Wiens, 1996; Norton & Carpenter, 1998; Shaw, 1994; Singh, 2021; Singh et al, 2016; Singh, Ekka, et al, 2020; Singh & Murugan, 2013; Singh & Ranjan, 2013; Turner, 1991). D. longensis does not show any kind of resemblance or mimicry with their preferred host, however, an endemic and rain forest species of ANIs, D. laljii exhibits high degree of mimicry with their host specificity, Artocapus heterophyllus in leaf form.…”

“…D. longensis sp. nov. exhibits most successful haustorial parasitism with specific host species, Mangifera indica L. (Anacardiaceae); however, most of the species of Dendrophthoe have presented the diversified mode of infestation in these Islands (Singh et al, 2016; Singh, Ekka, et al, 2020; Singh & Murugan, 2013; Singh & Ranjan, 2013).…”

“…Dendrophthoe longensis L.J. Singh, A new species of Dendrophthoe (Loranthaceae) from Andaman and Nicobar Islands, India out in the recent past years have led to discovery of novelties, most of them from the tropical zone of the Andaman Islands (Rajsekaran, 2012;Singh, 2013aSingh, , 2013bSingh, , 2015Singh, , 2021Singh et al, 2014Singh et al, , 2016Singh & Murugan, 2013;Singh & Ranjan, 2013;Singh, Ranjan, et al, 2020;Sivaramakrishna et al, 2021), The flora of Andaman group of Islands are closely related to the taxa of south east Asia and mainland India while those of the Nicobar group of Islands exhibits general affinities toward the taxa of Malaysia (Singh et al, 2014;.…”

“…ANI's are a phyto‐geographically important group of 572 Islands, constitute one of the hotspots of biodiversity and are well known for its rich and unique plant diversity with high endemism in India (Singh et al, 2014; Singh, Dwivedi, et al, 2020; Singh, Ekka, et al, 2020, 2021; Singh & Misra, 2020; Singh, Ranjan, et al, 2020, 2021; Singh, Vivek, et al, 2020). Taxonomic studies on Loranthaceae in the country by various workers carried out in the recent past years have led to discovery of novelties, most of them from the tropical zone of the Andaman Islands (Rajsekaran, 2012; Singh, 2013a, 2013b, 2015, 2021; Singh et al, 2014, 2016; Singh & Murugan, 2013; Singh & Ranjan, 2013; Singh, Ranjan, et al, 2020; Singh, Vivek, et al, 2020; Sivaramakrishna et al, 2021), The flora of Andaman group of Islands are closely related to the taxa of south east Asia and mainland India while those of the Nicobar group of Islands exhibits general affinities toward the taxa of Malaysia (Singh et al, 2014; Singh, Ekka, et al, 2021).…”