Rediscovery of Uniyala multibracteata (Gamble) H. Rob &
Skvarla (Asteraceae) from the southern Western Ghats, India
E.S. Santhosh Kumar 1, P.E. Roy 2,
S.M. Shareef 3 & S.S. Usha 4
1,2,3 Tropical
Botanic Garden and Research Institute, Palode, Karimancode P.O.,
Thiruvanathapuram District, Kerala 695562, India
4 Department of
Botany, S.N. College, Sivagiri-Varkala, Sreenivasapuram P.O., Kerala 695145,
India
Email: 1 santhoshkumares@gmail.com
(corresponding author), 2 roytbgri@gmail.com, 3 shariftbgri@rediffmail.com,4 ushakaimanam@gmail.com
Date of publication (online): 26 May 2012
Date of publication (print): 26 May 2012
ISSN 0974-7907 (online) | 0974-7893 (print)
Editor: N.P. Balakrishnan
Manuscript details:
Ms # o2968
Received 13 October 2010
Final received 08 March 2012
Finally accepted 27 March 2012
Citation: Kumar, E.S.S., P.E. Roy, S.M. Shareef
& S.S. Usha (2012). Rediscovery of Uniyala multibracteata (Gamble) H. Rob &
Skvarla (Asteraceae) from the southern Western Ghats, India. Journal of Threatened Taxa4(5): 2587Ð2589.
Copyright: © E.S. Santhosh Kumar, P.E.
Roy, S.M. Shareef & S.S. Usha 2012. Creative Commons Attribution 3.0
Unported License. JoTT allows unrestricted use of this article in any medium
for non-profit purposes, reproduction and distribution by providing adequate
credit to the authors and the source of publication.
Acknowledgement: The authors are grateful to the Director, TBGRI,
Thiruvananthapuram for constant encouragement and facilities provided.
For
figures, images -- click here
Robinson & Skvarla (2009) established the genus Uniyala, a
group of seven shrubby species previously placed in Vernonia, distributed in southern India
and Sri Lanka, characterized by four or five costate achenes and blunt sweeping
hairs on the style branches. Out
of the seven species, Uniyala wightiana (Arn.) H. Rob. & Skvarla is the only species
found endemic to Sri Lanka, whereas U. anceps (C.B. Clarke ex Hook.f.) H. Rob. &
Skvarla is distributed both in Sri Lanka and southern India. The rest of the five species, viz. U. bourdillonii (Gamble)
H. Rob. & Skvarla, U. comorinensis (W. Smith) H. Rob. & Skvarla, U. multibracteata(Gamble) H. Rob. & Skvarla, U ramaswamii (Hutch) H. Rob. & Skvarla and U. salvifolia (Wight) H. Rob &
Skvarla are endemic to southern India.
Uniyala multibracteata was originally described
as Vernonia multibracteataby J.S. Gamble in 1920. It was known only by a single collection made by Col. R.H. Beddome from
Peermedu of the erstwhile Travancore State. Repeated searches to relocate the species in and around its
type locality were futile, hence it was treated as an endangered species
(Sasidharan 2004). During a
floristic exploration to Bonaccord in the Agasthyamala Biosphere Reserve, U. multibracteatawas rediscovered (Image 1). The
identity was cross matched with the type material housed at the Royal Botanic
Gardens, Kew (www.kew.org). It is described and illustrated here (Fig. 1).
Uniyala multibracteata (Gamble) H. Rob. & Skvarla, Proc. Biol. Soc. Washington 122(2): 153.
2009. Vernonia multibracteata Gamble, Bull.
Misc. Inform. Kew 1920: 340. 1920 & Fl. Pres. Madras 675. 1921; Uniyal,
B.P. in Hajra et al. (eds.) Fl. India 13: 374. 1995; Nayar, M.P. &
A.R.K.Sastry (eds.) Red Data Book 1: 90. 1990; Sasidharan, N., Biod. Doc.
Kerala. Part 6. Flowering Plants 258. 2004; Nayar T.S. et al., Fl. Pl. Kerala
125. 2006. (Fig.1. aÐc; Fig.2.aÐf.)
Specimens examined: 28.ii.1991, 1200m,
Athirumala, Thiruvananthapuram District, Kerala, India, N. Mohanan 10462
(TBGT); 27.viii.1998, 1400m, ibid, Shaju & Kiran Raj 34769 (TBGT);
30.xii.2009, Merchiston, E.S. Santhosh Kumar & P.E. Roy, 69206 (TBGT)
(Image 2).
Type: Southern India, Travancore, Peermedu, 1000m, Dec. 1880, Beddome,
R.H. s.n. (Digital image, K).
Large shrubs or small trees, to 2m high; branchlets thick, white,
lanate. Leaves 5Ð20 x 0.9Ð5 cm, lanceolate, acuminate at apex,
attenuate-decurrent at base, crenulate at margin, densely white tomentose
beneath, dark green and rugose above, lateral nerves 10 Ð18 pairs,
parallel and reticulate; petiole 1Ð2 cm long, thick, white-lanate.
Capitula in terminal corymbs, 2Ð4 together covered with white-lanate
tomentose hairs; each 10x10 mm. Flowers 30 or more per capitula, purple; peduncle 2Ð6 cm long;
involucre bracts lanceolate, 1cm long; outer long acuminate, araneous,
intermediate almost glabrous; inner smaller, mucronate. Corolla cylindric, glabrous, to 4mm
long; lobes short. Stamens 5;
anthers 2.5Ð3 mm long, sagittate at base, exserted. Pollen grains prolate spheroidal,
39.2Ð 49 x 39.2Ð47.6 µm, 3-zonocolporate, aperture circular,
porate, exine lophate, 4.2µm thick, surface lacunate, lacuna circular and
elongate, supratectate, muri broad, surface spinate, spine to 3.2µm long, blunt
at tip. Ovary oblong, 2.7Ð3
mm long, narrowed at apex, glandular; style 9.5Ð10 mm long; stigma bifid,
puberulent. Achene tetragonous,
winged, glabrous, pappus hairs biciliate; outer paleaceous, fimbriate; interior
bristles setaceous.
Flowering and fruiting: AugustÐMarch.
Distribution: Endemic to the southern
Western Ghats, Kerala.
REFERENCES
Gamble, J.S. (1920). Bulletin of the Miscellaneous Information of Kew. Royal Botanic
Gardens, Kew, 340pp.
Gamble, J.S. (1921). Flora of the
Presidency of Madras, Adlard & Sons, London, 675pp.
Nayar, M.P. & A.R.K. Sastry (1990). Red Data Book of Indian PlantsÑVol. 1. Botanical Survey of India,
Kolkata, 90pp.
Nayar, T.S., B. Rasiya, N. Mohanan & G. Raj Kumar (2006). Flowering Plants of Kerala - A Handbook. Tropical Botanic garden and
Research Institute, Thiruvananthapuram, 125pp.
Robinson, H & J.J. Skvarla (2009). A new genus, Uniyala, from peninsular India and Sri Lanka (Vernonieae:
Asteraceae). Proceedings
of the Biological Society of Washington 122: 150Ð154.
Sasidharan, N. (2004). Biodiversity
Documentation of KeralaÑPart 6. Flowering Plants, Kerala Forest
Research Institute, Peechi, 258pp.
Uniyal, B.P. (1995). Asteraceae: Vernonieae, pp. 330-394. In: Hajra P.K., R.R. Rao & D.K. Singh (eds.), Flora of India-ÑVol. 13. Botanical Survey of India, Kolkata, 412pp.