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Henckelia humboldtiana (Gardner) A.Weber & B.L.Burtt: a. Habit; b. A portion of the inflorescence; c. Flower; d. Calyx; e. Calyx with pistil; f. Bract; g. Stamens; h. Staminode; i. Pistil; j. Immature capsule; k. Seeds (a from A.P. Janeesha & A.J. Robi 134201; b-k from A.P. Janeesha, Habeeb Rahman & S. Syam Radh 134221).
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The genus Henckelia Spreng. in South India is revisited based on field and herbarium data. Fifteen species are recognized. Henckelia wayanadensis is described new to science
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Citations
... Chirita (Moller et al., 2017) are characterized by caulescent habit, leaves in whorls of 2 or 3, and orthocarpic capsules dehiscing along both the upper and lower sutures (Wood, 1974;Moller et al., 2017). Henckelia Spreng. is the largest genus of Gesneriaceae in India, so far it is represented by 41 species (Vide GRC RBGE), of which, 24 species occurs in Northeast India (Sinha & Dutta, 2016;Krishna & Lakshminarasimhan, 2018;Borah et al., 2019;Kanthraj et al., 2020Kanthraj et al., , 2023Taram et al., 2020Taram et al., , 2021Taram et al., , 2022Taram et al., , 2024Maity 2024) and 16 species in South India (Janeesha & Nampy, 2020;Mathew et al., 2022). The primary goal of this study was to explore and document the diversity of the genus Henckelia in Arunachal Pradesh, to identify and record any new or previously unreported species of Henckelia in India, in order to contribute to the taxonomic and botanical knowledge of Gesneriaceae in the region. ...
Henckelia monantha only known from China so far is newly recorded for the Flora of India from Arunachal Pradesh. The species is close to Henckelia briggsioides but can be differentiated by its size of the calyx tube as well as the presence and absence of ovary indumentum. Detailed description of H. monantha, live plant photographs and ecology are presented here.
... The genus Henckelia is at present accounted with 75 species (Shi et al. 2021) worldwide; distributed mainly in South and Southeast Asia. India is bestowed with 37 species of this genus, of which, 21 species occur in Indian Himalayan Region (IHR) and northeast India; and 16 species in the Western Ghats (Janeesha & Nampy 2020, Kanthraj et al. 2020, Taram et al. 2021, Mathew et al. 2022. Recently described H. dasii Taram, Borah, Singh & Tag (2021: 364) from Eastern Himalayan state Arunachal Pradesh, strongly resemble a little-known Burmese species, H. peduncularis (Burtt 1965: 265) Middleton & Möller (2011. ...
The long lost Henckelia peduncularis (Gesneriaceae), was hitherto known from its type specimens collected from Burma, in 1926. Recently described Henckelia dasii from Arunachal Pradesh, India; revealed substantial similarities with the aforementioned Burmese element. Morphological analyses based on the type specimens of both the names revealed H. dasii is appropriate to be reduced as a heterotypic synonym of H. peduncularis. The present article also deals with the Red List assessment of H. peduncularis based on IUCN criteria and lectotype designation for the name Chirita peduncularis B.L. Burtt.
... India has above 50% of the representatives and shows high endemism. South India has 16 acaulescent species of Henckelia with 93% endemism, while Northeast India has 26 species and all are caulescent herbs (Möller et al., 2017;Janeesha & Nampy, 2020. ...
Gesneriads are one of the fascinating plant groups, mostly found in the tropical and subtropical regions. Despite the fact that perennial herbs make up the majority of the species, several genera and species in the family show considerable habit variation from shrubs or climbers to small trees. The conspicuous shape and variable colours of the flowers signify the ornamental values of the family to a great extent. In India, the family is represented by 23 genera with high species richness. This intriguing plant family in India is reviewed in detail here.
... Micro morphological characters were examined with a stereomicroscope (Leica S8APO, Leica Microsystems Inc., Germany). Relevant literatures were consulted (Borah et al., 2019;Bui et al., 2020;Burtt et al., 1988;Cai et al., 2019;Chatterjee, 1948;Clarke, 1874Clarke, , 1883Hooker, 1885;Janeesha & Nampy, 2020;Kanthraj et al., 2020;Krishna & Lakshminarasimhan, 2018;Middleton et al., 2013;Möller et al., 2017;Sinha & Datta, 2016;Sirimongkol et al., 2019;Taram et al., 2020Taram et al., , 2021Wang et al., 1998;Weber et al., 2011;Weitzman et al., 1997;Wood, 1974;Yang et al., 2019) and digital images of type specimens available from K, E and PE, as well as actual sheets housed at ASSAM, ARUN and CAL were studied. Taram & Tag, sp. ...
Henckelia arupii, a new species discovered from Arunachal Pradesh, India, is described and illustrated. The new species is superficially similar to Henckelia adenocalyx and three other Northeast Indian species in habit, in the broadly ovate foliaceous bracts covering the flower buds, in the parallel‐convergent venation of the bracts and in the infundibuliform corolla. However, it differs in having cymes reduced to solitary flowers, a campanulate, narrowly pleated calyx and lanceolate to elliptic revolute calyx segments. A detailed description and photographic illustration of the morphological characters is presented. So far, Henckelia arupii is only known from the type locality.
... Henckelia belongs to the family Gesneriaceae and consists of about 76 species distributed in Sri Lanka, S and NE India, Nepal, Bhutan, S and SW China, N Vietnam, N Laos, and N Thailand (Weber et al. 2013, Middleton et al. 2013, Möller et al. 2017, Sirimongkol et al. 2019, Borah et al. 2019, Janeesha & Nampy 2020, Taram et al. 2021, Shi & Yang 2021. With 38 taxa, Henckelia is the largest gesneriaceous genus in India (Möller et al. 2017, Krishna & Lakshminarasimhan 2018, Borah et al. 2019, Janeesha & Nampy 2020. ...
... Henckelia belongs to the family Gesneriaceae and consists of about 76 species distributed in Sri Lanka, S and NE India, Nepal, Bhutan, S and SW China, N Vietnam, N Laos, and N Thailand (Weber et al. 2013, Middleton et al. 2013, Möller et al. 2017, Sirimongkol et al. 2019, Borah et al. 2019, Janeesha & Nampy 2020, Taram et al. 2021, Shi & Yang 2021. With 38 taxa, Henckelia is the largest gesneriaceous genus in India (Möller et al. 2017, Krishna & Lakshminarasimhan 2018, Borah et al. 2019, Janeesha & Nampy 2020. Recently three new species of the genus (H. ...
... During botanical explorations in Idukki District in the southern Western Ghats in 2018-2021, we collected some peculiar specimens of Henckelia. After consulting the relevant literature (Wight 1850, Thathachar 1942, Burtt 1954, Burtt & Panigrahi 1965, Wood 1974, Burtt & Wiehler 1995, Weber et al. 2011, Weber 2004, Manudev et al. 2012, Sinha & Datta 2016, Möller et al. 2017, Sasidharan 2013, Janeesha & Nampy 2015, 2020, Janeesha 2017, the vouchers deposited in BSI, CAL, CALI, DD, DEV, E, FRC, JCB, KFRI, MH, RHT, SKU and TBGT, and online resources (https://plants.jstor.org, https://www.ipni.org, ...
... Chirita Wood (1974: 131) [excluding species belonging to Damrongia Kerr ex Craib (1918: 364)] and the monotypic genus Hemiboeopsis W.T. Wang (1984: 397). After intensive field investigations in recent years, the re-circumscribed Henckelia currently comprises 74 species, which are distributed in Sri Lanka, India, Bangladesh, Nepal, Bhutan, S China, Myanmar, N Vietnam, N Laos, and N Thailand (Weber et al. 2011, Middleton et al. 2013, Janeesha & Nampy 2020, Nampy et al.2021, Shi & Yang 2021. In China, a total of 25 species of this genus have been recorded, with four species recently described, i.e., H. xinpingensis Y.H. Tan & Bin Yang in Yang et al. (2019: 196), H. nanxiheensis Lei Cai & Z.L. Dao in Cai et al. (2019: 152), H. multinervia Lei Cai & Z.L. Dao in Cai et al. (2019: 155) and H. connata X.Z. ...
... Therefore, we further collected flowering specimens in April 2021, and done detailed morphological observations in field. Additionally, we studied the relevant literature (Wood 1974, Wang et al. 1998, Weber & Burtt 1998, Li & Wang 2004, Wei et al. 2010, Weber et al. 2011, Sirimongkol et al. 2019, Janeesha & Nampy 2020) and specimens housed in CDBI, HITBC, IBK, IBSC, KUN and PE, and consulted web databases (Kew Herbarium: http://apps.kew. org/herbcat/navigator.do; ...
Henckelia inaequalifolia, a new species in the genus Henckelia of the family Gesneriaceae is described here. The detailed morphological description, photographic illustration and geographical distribution of the new species are provided. Its morphological affinities between related species are also discussed in this paper.
... 2017; Krishna & Lakshminarasimhan 2018;Sirimongkol & al. 2019;Bin & al. 2019;Cai & al. 2019;Borah & al. 2019;Kanthraj & al. 2020;Janeesha & Nampy 2020;Singh & al. 2020).The authors while revising the taxonomy of the family Gesneriaceae in India, came across some interesting specimens of Henckelia from Mawsynram in East Khasi Hills district of Meghalaya. Critical examination of the specimens at various herbaria (ARUN, ASSAM, BM, CALI, E, K) and the study of relevant literature revealed that they were morphologically close to H. oblongifolia (Roxb.) ...
A new species of Henckelia (Gesneriaceae) is here described and illustrated. It is morphologically most similar to H. oblongifolia but differs in having lanceolate calyx lobes, two prominent longitudinal flaps on the inner surface of the corolla tube, bilobed stigma and tomentose capsules. A detailed description of the new species with colour photographs, affinities and a comparison with related species is given. Based on the present data, the new species is provisionally assessed as Critically Endangered (CR) according to IUCN Red List Categories and Criteria.
... has recently received great interests from taxonomists, with no less than 17 new species described after its recircumscription (Weber et al. 2011). At present, the genus comprises ca 70 species, most of which occurre in the Himalayas and Hengduan mountains while some others extend to Southeast Asia, Sri Lanka and south India (Weber et al. 2011, Middleton et al. 2013, Janeesha and Nampy 2020. Southwest China harbors a high diversity of Henckelia, and a total of 25 species have been recorded here. ...
... Ex D. Don or Hemiboeopsis W.T. Wang (Cai et al. 2019). In this study, based on extensive specimen examinations, field investigation and thorough checking of literature (Chatterjee 1948, Wood 1974, Wang et al. 1998, Li et al. 2003, Weber et al. 2011, Krishna and Lakshminarasimhan 2018, Borah et al. 2019, Janeesha and Nampy 2020, Kanthraj et al. 2020, Taram et al. 2020, a new species of this genus from E Himalayas was confirmed as described below. ...
According to morphological observation and literature consultation, a new species of Henckelia (Gesneriaceae), H. connata X. Z. Shi & Li H. Yang, is described and illustrated. This new species resembles H. dimidiata, but differs in its dilated and connate petiole bases (versus separated), longer peduncles (4–10 cm long versus 0.3–2.2 cm long) and pedicels (1.5–4.0 cm long versus up to 1 cm long), lanceolate to triangular bracts (versus ovate), of smaller size (4–7 × 3–5 mm versus up to 16 × 13 mm), bluish purple to light blue corolla tube (versus yellow) and pubescence on most organs (glabrous or sparsely pubescent).
Henckelia davidwoodii (Gesneriaceae) is described here as a new species based on collections made from the Shi‐Yomi district in the eastern Himalayan state of Arunachal Pradesh, India. This new species resembles H. lallanii Taram, D.Borah, Tag and R.Kr. Singh in its habit, infundibuliform corolla without flaps or flanges, and stamens with slightly geniculate filaments, but it can be differentiated by having 2‐flowered cymes (versus solitary in H. lallanii), ovate bracts with undulate margins (versus narrowly ovate‐lanceolate bracts with entire margins in H. lallanii), non‐reflexed 5‐veined calyx lobes (versus reflexed calyx lobes without veins in H. lallanii), and a cupular disc (versus tubular in H. lallanii). It also superficially resembles H. urticifolia (Buch.‐Ham. ex D.Don) A.Dietr., however, it can be differentiated by its distinct sessile to sub‐sessile bracts with undulate margins and a round to cordate base, often recurved at the base and overlapping to form a conical to cupulate structure, and stamens that are slightly geniculate (versus bracts with serrate margins and cuneate bases, never forming the aforementioned structures; stamens distinctly geniculate in H. urticifolia). A detailed taxonomic description is provided for this new species, accompanied by photographs and ecological information.
Two species of the genus Henckelia, H. forrestii (J. Anthony) D.J. Middleton & Mich. Möller and H. infundibuliformis (W. T. Wang) D. J. Middleton & Mich. Möller are recorded as new for the Flora of India from Arunachal Pradesh, India. Extended taxonomic descriptions are provided for the species accompanied by photographs and ecology.
