[Botany • 2024] Curcuma ungmensis (Zingiberaceae) • A New Species from Nagaland, North-East India

Curcuma ungmensis M.Sabu, Hareesh & P.Tiatemsu,  

in Sabu, Hareesh et Tiatemsu, 2024.

DOI: doi.org/10.11646/phytotaxa.663.2.4

 

Abstract

Curcuma ungmensis M.Sabu, Hareesh and P.Tiatemsu sp. nov. from Mokokchung district of Nagaland state, India is described here. The new species shows affinities towards C. inodora but distinct in many attributes. Detailed description and distribution are provided along with colour photographs of the new species for easy identification.

Curcuma inodora, Mokokchung district, novelty, Zingiberales, Monocots

Mamiyil Sabu, Vadakkoot Sankaran Hareesh and Punatemjen Tiatemsu. 2024. Curcuma ungmensis (Zingiberaceae): A New Species from Nagaland, North-East India.  Phytotaxa. 663(2); 90-94. DOI: doi.org/10.11646/phytotaxa.663.2.4

     

[Botany • 2020] Hedychium mechukanum (Zingiberaceae) • A New Species from the eastern Himalayas, India

Hedychium mechukanum M.Sabu & Hareesh  

in Sabu & Hareesh, 2020. 

Gardens' Bulletin Singapore. 72(2); 

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   Researchgate.net/publication/347124650

 

ABSTRACT

 The new species Hedychium mechukanum M.Sabu & Hareesh is described from Arunachal Pradesh, India. It shows similarities to Hedychium urophyllum G.Lodd., H. coronarium J.Koenig, H. flavum Roxb. and H. chrysoleucum Hook. from Northeast India, and to H. qingchengense Z.Y.Zhu from China. A detailed description along with colour photographs are provided for ease of identification. 

Keywords: Arunachal Pradesh, Northeast India, Quing, Zingiberales

 Hedychium mechukanum M.Sabu & Hareesh.
A. Habit. B. Leafy shoot, arrow mark indicating ligule. C. Young inflorescence. D. Close-up of flower. E. Cincinnus with bract removed. F. Bract. G-I. Bracteoles. J. Single flower. K. Corolla tube split open. L. Calyx. M. Stamen. N. Corolla lobes. O. Lateral staminodes. P. Labellum. Q. Ovary with epigynous glands. R. Cross section of ovary.

(Photos: M. Sabu and V.S. Hareesh).

   

Hedychium mechukanum M.Sabu & Hareesh sp. nov.

The new species is morphologically similar to Hedychium urophyllum but differs from the latter in having glabrous ligules, larger flowers, labellum which is white and yellow-tinged towards the base, glabrous calyx, internally glabrous corolla tube, and longer stamens (see Table 1).

Etymology. The specific epithet of the new taxon comes from the name of a small town, Mechuka, which borders China at about 1850 m above sea level in Shi-Yomi District of Arunachal Pradesh. This taxon was collected from the Mechuka valley on the way to Mechuka from Along.  

M. Sabu and V.S. Hareesh. 2020. Hedychium mechukanum (Zingiberaceae), A New Species from the eastern Himalayas, India. Gardens' Bulletin Singapore. 72(2); 291 - 297.

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  Researchgate.net/publication/347124650_Hedychium_mechukanum_a_new_species_from_the_eastern_Himalayas_India

 

[Botany • 2016] Impatiens pseudocitrina (Balsaminaceae) • A New Species from Arunachal Pradesh, Northeast India

Impatiens pseudocitrina Hareesh, M.Sabu & Gogoi,  

in Hareesh, Gogoi & Sabu, 2016. 

DOI: 10.11646/phytotaxa.282.3.8 

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Abstract

Impatiens pseudocitrina from Anjaw district, Arunachal Pradesh, North-East India, is newly described and illustrated. Detailed descriptions, distribution, and ecological information, along with colour photographs and key to the closely related species, are provided for identification of the species.

Keywords: Impatiens, Balsaminaceae, New species, India, Eudicots.

Impatiens pseudocitrina Hareesh, M.Sabu & Gogoi sp. nov.

Vadakkoot Sankaran Hareesh, Rajib Gogoi and Mamiyil Sabu. 2016. Impatiens pseudocitrina (Balsaminaceae), A New Species from Arunachal Pradesh, Northeast India. Phytotaxa. 282(3); 231-234. DOI: 10.11646/phytotaxa.282.3.8 [2016-10-28]

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[Botany • 2020] Rediscovery of Globba andersonii and Three New Synonymies in Indian Zingiberaceae

ABSTRACT

Based on detailed studies of the protologues, types, herbarium and comparison with live specimens, Caulokaempferia dinabandhuensis Biseshwori & Bipin, Globba teesta S. Nirola & A.P. Das and Zingiber sianginensis Tatum & A.K. Das are reduced under Monolophus suksathanii S. Dey, Langhu & Bhaumik, G. andersonii C.B. Clarke ex Baker and Z. officinale Roscoe, respectively. In addition, Globba andersonii is rediscovered after a gap of 136 years. A detailed description and color photographs of G. andersonii are provided for ease of understanding.

KEYWORDS: Caulokaempferia dinabandhuensis, Globba teesta, rediscovery, synonym, taxonomy, Zingiberaceae, Zingiber sianginensis

    

 

Globba andersonii C.B.Clarke ex Baker, in Hook. f., Fl. Brit. India 6: 202 (1890)

 

Jayakrishnan Thachat, Sachin A. Punekar, Vadakkoot Sankaran Hareesh and Mamiyil Sabu. 2020. Rediscovery of Globba andersonii and Three New Synonymies in Indian Zingiberaceae. Botany Letters. 167(3); 373-377. DOI: 10.1080/23818107.2020.1770626

'Globa andersonnii'- critically endangered species from Sikkim Himalaya was rediscovered after a gap of 136 years.

[Botany • 2021] Amomum arunachalense (Zingiberaceae) • A New Species from Arunachal Pradesh, northeastern India

Amomum arunachalense Hareesh & M. Sabu

in Hareesh, Borah & Sabu, 202l.

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Abstract

Amomum arunachalense Hareesh & M. Sabu sp. nova (Zingiberaceae) is described from Arunachal Pradesh, northeastern India. It is similar to A. maximum, but differs from the latter by having a white rhizome with a pale brown center, an entire ligule, a labellum without lateral staminodes, an obtuse stamen crest and a non-winged, foveolate fruit. A detailed description of the plants along with photographs are provided.

Hareesh V. S.Hareesh, V. S.Dipankar Borah and  Mamiyi Sabu. 202l. Amomum arunachalense (Zingiberaceae), A New Species from northeastern India. Annales Botanici Fennici. 58:69-72.

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[Botany • 2019] Hedyotis indirae (Rubiaceae) • A New Species from Western Ghats, India

Hedyotis indirae K.M.P. Kumar & P.T. Aiswarya

in Prabhukumar, Aiswarya, ... et Hareesh, 2019. 

  DOI: 10.1080/00837792.2019.1641298   

 ABSTRACT

Hedyotis indirae, a new shrubby species of Rubiaceae from Muthikulam forest of Palakkad district, Kerala is described and illustrated here. The species shows similarities with its closely allied taxa H. hirsutissima and H. beddomei, but differs in many qualitative attributes. Detailed description, phenology and distribution notes are provided along with photographs.

KEYWORDS: Elivalmala, Kerala, Muthikulam forest, Novelty, Palakkad hills

Hedyotis indirae K.M.P. Kumar & P.T. Aiswarya, sp. nov.

Etymology: The new species is named after Dr Indira Balachandran, Director, Centre for Medicinal Plants Research (CMPR), Arya Vaidya Sala, Kottakkal, Malappuram, Kerala, for her outstanding contribution to the field of angiosperm taxonomy and in Ayurvedic Medicinal Plants.

Konickal Mambetta Prabhukumar, Pilathottathil Aiswarya, Raveendran Jagadeesan, Vannaratta Veettil Naveen Kumar, Chandrasseril Narayanan Sunil andVadakoot Sankaran Hareesh. 2019. Hedyotis indirae (Rubiaceae), A New Species from Western Ghats, India. Webbia: Journal of Plant Taxonomy and Geography. 74(2); 275-279. DOI: 10.1080/00837792.2019.1641298  

[Botany • 2020] Peucedanum pradeepianum (Apiaceae: Apioideae) • A New Species from Western Ghats, India

Peucedanum pradeepianum KMP Kumar, Hareesh & Indu

in Prabhukumar, Hareesh, Pradeep & Balachandran, 2020.

 DOI: 10.11646/phytotaxa.446.1.5

Abstract

A new species, Peucedanum pradeepianum KMP Kumar, Hareesh & Indu sp. nov. from Western Ghats of Kerala, is described and illustrated. The new species is closely related to P. anamallayense and P. dhana var. dhana, but differs in having deeply serrate leaflets, broadly ovate bract, ovate-lanceolate, acute bracteoles, and 3–4 lateral and 4 commissural vittae.

Keywords: Novelty, IUCN Red List, south India, Eudicots

  

Konickal Mambetta Prabhukumar, Vadakkoot Sankaran Hareesh, Ram Pradeep and Indira Balachandran. 2020. Peucedanum pradeepianum (Apiaceae: Apioideae), A New Species from Western Ghats, India. Phytotaxa. 446(1); 43–48. DOI: 10.11646/phytotaxa.446.1.5

[Botany • 2020] Impatiens tirbinensis & I. shiyomiensis • Two New Balsams (Balsaminaceae) from Eastern Himalayas, India

Impatiens shiyomiensis & I. tirbinensis  Hareesh & M.Sabu

in Hareesh & Sabu, 2020. 

DOI: 10.11646/phytotaxa.437.5.3 

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Abstract

Two new balsams (Impatiens), Impatiens tirbinensis and I. shiyomiensis are described from Arunachal Pradesh, India. Species shows affinities towards I. drepanophora and I. rugosipetala but distinct in many attributes. Detailed descriptions, distribution, ecology and colour photographs of the new species are provided along with the comparison of I. drepanophora.

Keywords: Arunachal Pradesh, Impatiens, I. drepanophora, Jewel weeds, new species, north-east India, Eudicots

Impatiens tirbinensis Hareesh & M.Sabu 

Impatiens shiyomiensis Hareesh & M.Sabu

Hareesh V. S. and Sabu Mamiyil. 2020. Two New Balsams (Balsaminaceae) from Eastern Himalayas, India. Phytotaxa. 437(5); 291–300. DOI: 10.11646/phytotaxa.437.5.3

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Researchgate.net/publication/340333004_Two_new_balsams_from_Eastern_Himalayas_India

telegraphindia.com/states/north-east/two-more-hues-of-balsam-blossom-in-arunachal-pradesh/cid/1762366

[Botany • 2018] Boeica clarkei (Gesneriaceae) • A New Species from northeastern India

Boeica clarkei Hareesh, L.Wu, A. Joe & M.Sabu

in Vadakkoot, Lei, Alfred & Mamiyil, 2018. 

 DOI: 10.1111/njb.01551

Abstract

Boeica clarkei, a new species is described from Arunachal Pradesh, northeastern India. This novelity resemble B. porosa but differ in having corolla externally pubescent, an inconspicuous disc and transversely dehiscing anthers. From B. multinervia it differs in being pubescent rather than woolly, and in having only 8–12 paired lateral leaf veins, only ca 1 mm long corolla tube, and longer lip lobes. A detailed description along with colour photographs, distribution, conservation status and a key to the Indian species of Boeica are provided.

Keywords: Boeica, Gesneriaceae, northeast India

Boeica clarkei sp. nov.
(A) habit, (B)–(D) inflorescence: (B) front view, (C) side view, (D) back view, (E)–(G) corolla: (E) back view, (F) front view, (G) split opened showing stamens, (H) capsule with calyx, (I) immature infructescence.

Photos by V.S. Hareesh.

Boeica clarkei Hareesh, L.Wu, A. Joe & M.Sabu sp. nov.

Etymology: The specific epithet honours C. B. Clarke, a British botanist that described the genus Boeica and his contribution to the field of plant taxonomy.

Sankaran Hareesh Vadakkoot, Wu Lei, Joe Alfred and Sabu Mamiyil. 2018. Boeica clarkei sp. nov. (Gesneriaceae) from northeastern India. Nordic Journal of Botany. 36(4); njb-01551. DOI: 10.1111/njb.01551

Researchgate.net/publication/324999470_Boeica_clarkei_sp_nov_from_northeastern_India

[Botany • 2019] Spiradiclis cavicola (Rubiaceae) • A New Species from Limestone Caves in southwestern China

Spiradiclis cavicola L. Wu, Hareesh & B. Pan

in Pan, Tu, Hareesh & Wu, 2019. 

DOI:  10.5735/085.056.0101 

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Spiradiclis cavicola L. Wu, Hareesh & B. Pan, a new species from limestone caves in Guizhou and Guangxi province, southwestern China, is described and illustrated. This species which is morphologically similar to S. scabrida, can be easily distinguished from the latter by its petiole 0.5–3 cm long, leaf blade elliptic to oblong, and flower homostylous that with anthers and stigma are positioned at the throat of corolla tube or sometimes stigma slightly above anthers. The detailed morphological characters together with illustrations, diagnostic comparisons and habitat etc. are presented.

Bo Pan, Rong-Hui Tu, Vadakkoot-Sankaran Hareesh and Lei Wu. 2019: Spiradiclis cavicola (Rubiaceae), A New Species from Limestone Caves in southwestern China. Annales Botanici Fennici. 56(1-3); DOI:  10.5735/085.056.0101  

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[Botany • 2019] Acranthera hoangii (Rubiaceae) • A New Species from central Vietnam

Acranthera hoangii Hareesh & T.A. Le

in Hareesh, Le, Tien & Viet, 2019. 

DOI: 10.1080/00837792.2018.1548813  

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ABSTRACT

Acranthera hoangii Hareesh & T.A. Le (Rubiaceae) is described as a new species from Vietnam. The new species shows similarities with A. longipes, but shows significant differences in its densely pubescent shoot and petiole, larger flowers, five-nerved calyx lobes and ribbed ovary.

KEYWORDS: Acranthera, Amphoterosanthus, new species, Rubiaceae, Vietnam

Acranthera hoangii. A twig with flowers.

Photo by T. A. Le.

Acranthera hoangii Hareesh & T.A. Le, sp. nov. 

Etymology: The species is named in honour of Dr Hoang Le Tuan Anh, Director, Mientrung Institute for Scientific Research (MISR), Huynh Thuc Khang Street, Hue city who is the first to notice the plant during the collection in central Vietnam.

Vadakkoot Sankaran Hareesh, Tuan Anh Le, Chinh Vu Tien and Cuong Pham Viet. 2019. Acranthera hoangii (Rubiaceae), A New Species from central Vietnam. Webbia: Journal of Plant Taxonomy and Geography. DOI: 10.1080/00837792.2018.1548813 

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[Botany • 2018] Disporum mishmiensis (Colchicaceae) • A New Species from North East India

Disporum mishmiensis 

in Hareesh, Floden & Sabu, 2018.

   DOI: 10.3767/blumea.2018.63.02.05  

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Abstract

Disporum mishmiensis, sp. nov. is described from Arunachal Pradesh, north-eastern India. A detailed description and colour photographs of D. leucanthum are provided to aid identification. A distribution map, notes on ecology and a key to Indian species are provided.

Keywords: Arunachal Pradesh; Disporum; India; Mishmi Hills

Disporum mishmiensis Hareesh & M.Sabu, sp. nov. 

 Disporum mishmiensis is similar to D. leucanthum but differs from it in having a campanulate perigone with pink tepals that are 2.7–3 cm (vs 1.2–2 cm), filaments 14–16 mm long (vs 8–15 mm), a style 16–18 mm long (vs 6–12 mm), and a non-stoloniferous/rhizomatous growth habit. 

— Type: M.Sabu & V.S.Hareesh 149366 (holo CALI; iso CAL, CALI), India, Arunachal Pradesh, Lohit District, near Tohangam view point, on the way to Hayuliang from Tezu, ..., 16 May 2017. 

Etymology. The name mishmiensis denotes the type locality, Mishmi Hills which is a part of the eastern hills of Arunachal Pradesh adjacent to Myanmar

 Hareesh, V.S., Floden, A. and Sabu, M. 2018. Disporum mishmiensis (Colchicaceae), A New Species from North East India.   Blumea - Biodiversity, Evolution and Biogeography of Plants. DOI: 10.3767/blumea.2018.63.02.05 

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[Botany • 2018] Thismia aurantiaca (section Rodwaya, Thismiaceae) • First Record of the Family from Andaman and Nicobar Islands, India with A New Species

Thismia aurantiaca  Hareesh & M.Sabu

in Hareesh, Alappatt & Sabu, 2018

DOI:  10.3767/blumea.2018.63.02.08

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Abstract

 Thismia is a mycoheterotrophic genus in the family Thismiaceae. We report a new family record for Andaman and Nicobar Islands and a new species for India. A detailed description along with conservation assessment, colour photos, distribution map, and key to the species from India are provided.

Keywords: Andaman Islands; Rodwaya; Thismia; Thismiaceae; new record; new species

  

Thismia aurantiaca Hareesh & M.Sabu, sp. nov. 

This species is similar to T. rodwayi but differs from the latter in having outer perianth lobes 5 times larger than inner perianth lobes (vs sub-equal), broadly triangular recurved outer perianth lobes (vs spathulate, up-curved) and inner perianth lobes with minute 0.5 mm long, erect mitre (vs well developed more than 1 mm long, bent and inter locking mitre).

 Type: M. Sabu & V.S. Hareesh 152774 (holo CALI; iso CAL, PBL), India, Andaman Islands, South Andaman, Mount Harriet National Park, elevation ± 320 m, 7 Aug. 2017. 

Etymology. The name ‘aurantiaca’ denotes the orange coloured flower of the plant.

Fig. 1 Thismia aurantiaca Hareesh & M.Sabu.
 a–b. Plant in habitat; c–e. habit (M. Sabu & V.S. Hareesh 152774).

 — Scale bar = 2 cm.

 — Photos by M. Sabu & V.S. Hareesh.

Fig. 2 Thismia aurantiaca Hareesh & M.Sabu floral parts.
 a. Habit showing split-opened flower with stamens; b– c. mitre; d. hypanthium side view; e. hypanthium front view; f–i. outer tepals; f–g. adaxial view; h–i. abaxial view; j– k. ovary with stigma (M. Sabu & V.S. Hareesh 152774).

 — Scale bars: a = 1 cm; b– c = 5 mm; d–e = 3 mm; f– k = 1 mm.

 — Photos by M. Sabu & V.S. Hareesh.

Habitat & Ecology — So far, we could observe three populations with around 18 individuals each in the evergreen forest patches of Mount Harriet National Park, South Andaman. The plants are growing in a damp habitat in the understory of evergreen forest in association with Amomum andamanicum V.P.Thomas, Dan & M.Sabu (Zingiberaceae), Dipterocarpus sp. and Hopea sp. (Dipterocarpaceae), Phrynium sp. (Marantaceae), Malaxis sp. (Orchidaceae). 

V.S. Hareesh, J.P. Alappatt and M. Sabu. 2018. Thismia aurantiaca sp. nov. (section Rodwaya, Thismiaceae): First Record of the Family from Andaman and Nicobar Islands, India with A New Species.  Blumea - Biodiversity, Evolution and Biogeography of Plants. DOI:  10.3767/blumea.2018.63.02.08

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