Journal of Threatened Taxa |
www.threatenedtaxa.org | 26 October 2021 | 13(12): 19870–19873
ISSN 0974-7907 (Online) | ISSN 0974-7893
(Print)
https://doi.org/10.11609/jott.6468.13.12.19870-19873
#6468 | Received 23 July 2020 | Final
received 18 October 2021 | Finally accepted 19 October 2021
Rediscovery and extended
distribution of Indigofera santapaui Sanjappa
(Leguminosae: Papilionoideae) from the
states of Maharashtra and Gujarat, India
Kumar Vinod Chhotupuri
Gosavi 1, Sanjay Gajanan Auti 2, Sharad Suresh Kambale 3 & Munivenkatappa
Sanjappa 4
1,2 Department of Botany, HPT Arts
& RYK Science College, Nashik, Maharashtra 422005, India.
3 Department of Botany, Maratha
Vidya Prasarak Samaj’s
Arts, Commerce & Science College, Tryambakeshwar,
Maharashtra 422212, India.
4 Mahatma Gandhi Botanical Garden,
University of Agricultural Sciences, GKVK, Bengaluru, Karnataka 560065, India.
1 kumarvinodgosavi@gmail.com, 2
autisanjay66@gmail.com, 3 skambalesu@gmail.com (corresponding
author), 4 sanjappam@ymail.com
Editor: Anonymity
requested. Date of publication:
26 October 2021 (online & print)
Citation: Gosavi,
K.V.C., S.G. Auti, S.S. Kambale & M. Sanjappa (2021). Rediscovery
and extended distribution of Indigofera santapaui Sanjappa
(Leguminosae: Papilionoideae) from the states of
Maharashtra and Gujarat, India. Journal of Threatened Taxa 13(12): 19870–19873. https://doi.org/10.11609/jott.6468.13.12.19870-19873
Copyright: © Gosavi
et al. 2021. Creative Commons Attribution
4.0 International License. JoTT allows unrestricted use, reproduction, and
distribution of this article in any medium by providing adequate credit to the
author(s) and the source of publication.
Funding: Self-funded.
Competing interests: The authors
declare no competing interests.
Acknowledgements: Authors (KVCG, SGA & SSK)
thank the principals of H.P.T. Arts & R.Y.K. Science College, Nashik and
MVP Samaj’s Arts, Commerce & Science College, Tryambakeshwar for the necessary facilities. SGA thanks the
Board of College and University Development, Savitribai Phule Pune University,
Pune, for financial assistance and Mr. Uttam
Chaudhari for help in the field work. We also thank the authorities of Maharashtra
Forest Department (Mr. Pankaj Garg, Mr. Sujit Bokade, Mr. Dnyaneshwar Shinde,
Mr. Haribhau Nimbekar, Mr.
Sanjay Badade, and Mr. Kailas Nimbekar)
for necessary help and permission to work in the Anjaneri
Conservation Reserve.
Tribe Indigofereae
(Leguminosae: Papilionodeae) represented by seven
genera Cyamopsis, Indigasarum,
Indigofera, Microcharis,
Phylloxylon, Rhynchotropis,
and Vaughania. Of these, the first three
occur in India. The genus Indigofera is widely
distributed in tropical and subtropical regions of the world (Sanjappa 1995) with 750 species. In India, it is
represented by 60 species and 10 varieties (Sanjappa
2021 in press). Of these 13 species and seven varieties are endemic to the
country (Singh et al. 2015).
While surveying the hills in
northern Western Ghats, the authors collected an interesting species of Indigofera from Ganeshkhind,
Junnar (Pune district, Maharashtra), Anjaneri Hill, Pahine, Dhodamb Fort, Bordaiwat (Nashik
district, Maharashtra), and Chinchali ghat (Dang district, Gujarat). After perusal of literature
(Kothari 2001) it was identified as Indigofera
santapaui Sanjappa. This species was described based on the Santapau’s collection from Purandhar
(Santapau 11397 (BLAT)) and is unique in the genus in
having yellow flowers which turn orange after pollination. Perusal of
literature (Kothari 2001; Mishra & Singh 2001; Gaikwad et al. 2014)
available on the species clearly indicates that this species is critically
endangered and known from type locality only.
A detailed description, image,
habitat, and distribution map are provided to facilitate identification and
distribution.
Indigofera santapaui Sanjappa,
Bull. Bot. Surv. India 25:
202.1985; M. Ahmed. & M.P. Nayar Endemic Pl.
Indian Region 99. 1987; Sanjappa, Legumes of India
194.1992 & in P.K.Hjra et al., Fasc. Fl. India
21: 117. 1995; M.J. Kothari in N.P. Singh & S. Karthikeyan, Fl. Maharashtra
State 1: 711. 2000; D.K. Mishra & N.P. Singh, Endemic Threat. Pl.
Maharashtra 93. 2001 (Image 1).
Type: India, Maharashtra, Pune
district, Vazirgad-Purandar, 09.x.1950, coll. H. Santapau (holotype, 11397 (BLAT!).
Annual herbs up to 40 cm high;
stems sparsely branched from the base, branches adpressed
blackish-brown pubescent. Leaves pinnately trifoliate, 3–7 cm long, petiole 1–2
cm long, obscurely canaliculated, adpressed
pubescent; leaflets obovate to obovate-oblong, 2.5–5 × 1–2 cm, cuneate at base,
obtuse to rounded and mucronate at apex, adpressed
pubescent, gland-dotted beneath; stipules 2–3 mm long, subulate, pubescent; petiolules 1.5–2 mm long, pubescent; exstipellate.
Racemes 4–6 mm long, axillary, sessile, 5–12-flowered; rachis pubescent
interspersed with glandular hairs, axillary. Flowers 4.5–5 mm long, yellow
turning orange; pedicels 1–1.5 mm long similar to rachis in pubescens;
bracts ca. 1 mm long, caducous. Calyx ca. 2 mm long, adpressed
pubescent mixed with glandular hairs; tube short, lobes 5, up to 1 mm long.
Standard ca. 4 × 3 mm, obovate, mucronate, yellow, blackish-brown strigose
mixed with a few glandular hairs outside; wing petals 2.8–3 × 1.2 mm, yellow, glabrous; keel petals 2.6–4 mm long, dark strigose mixed
with a few glandular hairs, spurred on sides. Stamens 10 (9+1), diadelphous, staminal sheath 2.5–3 mm long; anthers ca. 1
mm long. Ovary 1.5–2 mm long, oblong, adpressed puberulous mixed with glandular hairs; style ca. 1 mm long,
glabrous; stigma capitate. Pods up to 2 cm long,
sub-cylindrical, torulose, straight, reflexed, adpressed pubescent mixed with glandular hairs, sutures
obscurely winged, endocarp smooth, 2–4-seeded, hairy. Seeds smooth, shining,
reddish-brown.
Flowering and fruiting:
Mid-August to October.
Distribution: India, Maharashtra
(Pune and Nashik districts), Gujarat (Dang district) (Figure 1).
Ecological Note: Indigofera santapaui
grows on hill slopes with well-drained soil in association with Apluda mutica L., Arthraxon lancifolius
(Trin) Hochst, Arundinella pumila
(Hochst.) Steud., Impatiens
balsamina L., Lavandula
bipinnata (Roth) Kuntze,
and Lobelia heyneana Schult.
Specimens examined: SSK 14,
18.ix.2016, India, Maharashtra, Nashik district, Tryambakeshwar,
Anjaneri, coll. S.S. Kambale, K.V.C. Gosavi & S.G. Auti; SSK 27,
30.ix.2017, Dhodamb Fort, coll. S.S. Kambale &
K.V.C. Gosavi; SSK 28, 01.x.2017, Maliamba
(Bordaiwat), coll. S.S. Kambale & K.V.C. Gosavi, Gujarat; SSK 29, 02.x.2017, Dang district, Chinchali ghat, coll. S.S.
Kambale & K.V.C. Gosavi (Herbarium, Dept. of
Botany, RYK Science College, Nashik) (Image 2); 1403 (HIFP), 14.xii.1993, Pune
district, Junnar, Ganeshkind
Ghat, coll. B.R. Ramesh, D.De
Franchschi & P.B. Viet; Sanjappa
2008, 21.ix.2014, Pune district, Junnar, Ganeshkind Ghat, 905m, coll. M. Sanjappa & A.N. Sringeswara
(Herbarium specimens deposited in University of Agricultural Sciences,
Bangalore, Botanical Survey of India, Western Circle Pune, Central National
Herbarium Kolkata and Madras Herbarium, Coimbatore).
For figure
& images - - click here
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