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

 

References

 

Gaikwad, S.P., R.D. Gore, K.U. Garad & S. Gaikwad (2014). Endemic flowering plants of northern Western Ghats (Sahyadri Ranges) of India: A checklist. Check List 10(3): 461–472. https://doi.org/10.15560/10.3.461

Kothari, M.J. (2001). Fabaceae, pp. 692–717. In: Singh, N.P. & S. Karthikeyan (eds.). Flora of Maharashtra State, Dicotyledonae - Vol. 1. Botanical Survey of India, Kolkata.

Mishra, D.K. & N.P. Singh (2001). Endemic and Threatened Flowering Plants of Maharashtra. Botanical Survey of India, Kolkata, 93pp.

Sanjappa, M. (1992). Legumes of India. Bishen Singh Mahendra Pal Singh, Dehradun.

Sanjappa, M. (1995). Tribe: Indigofereae (Leguminosae-Papilionoideae). In: Hajra, P.K., A.R.K. Sastry & M. Sanjappa (eds.). Fascicles of Flora of India: Fascicle 21. Botanical Survey of India, Kolkata, 167pp.

Sanjappa, M. (2020). Flowering Plants of India, a check-list of Dicotyledones, Volume 2. Botanical Survey of India, Kolkata (in press).

Singh, P., K. Karthigeyan, P. Lakshminarasimhan & S.S. Dash (2015). Endemic Vascular Plants of India. Botanical Survey of India, Kolkata.