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This species is accepted, and its native range is Assam (Meghalaya).

[KBu]

Kumari, P. & Singh, P. 2009. Two new species of Bambusa (Poaceae) from India. Kew Bulletin 64: 565. DOI: https://doi.org/10.1007/s12225-009-9140-4

Conservation
Data Deficient (DD). As it is a new species described here, a proper status can only be possible after other areas are explored and more data is collected.
Distribution
India: Meghalaya.
Ecology
Along roadsides; 1100 – 1200 m. Also cultivated.
Morphology Culms
Culms 10 – 15 m high, 5 – 6 cm in diameter, dark-greyish green; nodes slightly raised, with whitish ring below and root scars above nodal line, rootlets on lower 9 – 10 nodes; internodes terete, 30 – 40 cm long, thick-walled, semisolid; nodal bud ovate; branches in triple pattern, present on all nodes except a few lower ones Culm-sheaths deciduous, triangular, shorter than internodes, yellowish-brown, leathery; sheath proper 19 – 21 cm long, 24 – 28 cm broad at base, attaining gradually from one side and somewhat roundly from another into 11 – 13 cm wide, slightly convex, rounded top; glabrous on both surfaces except a very few brown-blackish hairs appressed on one corner at the base on outer surface, shining, smooth on inner surface; imperfect blade persistent, erect, smaller than sheath proper, triangular, equally broad or broader than the top of sheath proper, rounded at base, terminating into incurved pointed apex, glabrous on both surfaces, minutely ciliate at margins; ligule up to 1 cm long, dentate, ciliate at mouth, glabrous underneath blade; auricles similar, short, rounded, somewhat lobed with two small lobes on either side, short ciliate, cilia deciduous
Morphology General Habit
Arboreal, erect, clump-forming bamboo
Morphology Leaves
Leaves 8 – 10 per twig; leaf-blades lanceolate, 15 – 27 cm long, 2 – 3 cm broad, lower subequally rounded and apical attenuate at base, gradually and acuminately terminating into twisted, scabrous, c. 5 mm long apex; glabrous on adaxial surface except scabrid nerves along one margin, minute hairy on abaxial surface, serrated on both margins; midvein prominent, glabrous, secondary veins 10 – 11 pairs, tertiary veins 7 – 9, very faint pellucid dots like cross veins observed; pseudopetiole with few cilia first, afterwards glabrous; leaf-sheath glabrous, striate, thin keeled, ciliate at margins, ending in rounded, smooth callus short ciliate at mouth; ligule c. 1 mm long, slightly oblique, glabrous or with few cilia near petiole; auricles obscure, mouth end rounded, having c. 2 mm long, deciduous cilia
Morphology Reproductive morphology Inflorescences
Inflorescence branched leafless panicle, branches bearing globose or semiglobose (in young) heads; rachis striate, hispid towards apex
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets 2 – 2.5 cm long, 5 – 8-flowered, all fertile; empty glumes 2 – 4, 4 – 8 mm long, ovate, mucronate, multinerved, minutely ciliate on margins at apices, glabrous on outer surface, white pubescent at apex on inner surface; lemma ovate, acuminate at apex, 12 – 13 mm long, multinerved, glabrous on outer surface, faintly cross-veined and hairy on inner surface, margins short-ciliate on upper half, smooth below; palea shorter than lemma, c. 10 mm long, oblong, 2-keeled, long ciliate at keels, 3 – 5 (– 7)-nerved in between keels, 2-nerved on either side, faintly cross-veined and minutely pubescent on inner surface, glabrous on outer surface except few scattered minute cilia, margins short ciliate; stamens 6, c. 6 mm long, base saggitate, apex penicillate; ovary 1 – 2 mm long, ovate, hairy, continuing into 2 – 3 mm long, hairy style which divides into 3, plumose, 7 – 8 mm long purple stigmas; lodicules 3, c. 6 mm long, lanceolate, 3 – 5-nerved, the nerves faint, fimbriate along margins
Note
The species is named in honour of Prof. H. Y. Mohan Ram, University of Delhi, for his valuable contributions in the field of plant science and his keen interest in the AICOPTAX project of which the present finding is an outcome. The culm-sheath of Bambusamohanramii somewhat matches with that of B. balcooa in its texture and minute auricles. However, it differs remarkably in other vegetative and floral aspects which assure its distinct identity.
Type
India, Meghalaya: Jaintia hills, Khleiriaht, 9 April 2004, P. Kumari 34608 (holotypus CAL; isotypus CAL).
Vegetative Multiplication Rhizomes
Rhizome pachymorph

[GB]
Morphology General Habit
Perennial; caespitose. Rhizomes short; pachymorph. Culms erect; 1000-1500 cm long; 50-60 mm diam.; woody; with aerial roots from the nodes. Culm-internodes terete; thick-walled; 30-40 cm long; grey. Lateral branches dendroid. Bud complement 1. Branch complement three. Culm-sheaths deciduous; 19-23 cm long; 0.9 times as long as wide; coriaceous; yellow, or brown; glabrous; convex at apex; auriculate; ciliate on shoulders. Culm-sheath ligule 8-10 mm high; dentate. Culm-sheath blade triangular; as wide as sheath at base; erect; with ciliate margins. Leaves cauline; 8-10 per branch. Leaf-sheaths keeled; striately veined; glabrous on surface; outer margin hairy. Leaf-sheath oral hairs ciliate; 2 mm long. Ligule an eciliate membrane; 1 mm long. Collar with external ligule. Leaf-blade base with a brief petiole-like connection to sheath; petiole glabrous. Leaf-blades lanceolate; 15-37 cm long; 20-30 mm wide. Leaf-blade midrib conspicuous. Leaf-blade venation with 14-18 secondary veins. Leaf-blade surface puberulous; hairy abaxially. Leaf-blade margins scabrous. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Synflorescence bractiferous; clustered at the nodes; in untidy tufts; dense; with glumaceous subtending bracts; with axillary buds at base of spikelet; prophyllate below lateral spikelets; leafless between clusters.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 7-8 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-25 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.
Fertile
Spikelets comprising 7-8 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20-25 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes several; 2-4 empty glumes; persistent; similar; shorter than spikelet. Lower glume ovate; 4-8 mm long; coriaceous; without keels. Lower glume margins ciliolate. Lower glume apex mucronate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma ovate; 12-13 mm long; without keel. Lemma lateral veins with cross-veins (obscure). Lemma margins ciliolate; hairy above. Lemma apex acuminate. Palea oblong; 10 mm long; 9-11(-13) -veined; 2-keeled. Palea keels ciliate. Palea surface pilose; hairy on margins. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 3; lanceolate; 6 mm long; membranous; veined; ciliate. Anthers 6; 6 mm long; anther tip penicillate. Stigmas 3; plumose. Styles 2-3 mm long. Ovary umbonate; pubescent on apex.
Distribution
Asia-tropical: India.
Reference
Bambuseae. Kumari & Singh 2011.

Native to:

Assam

Bambusa mohanramii P.Kumari & P.Singh appears in other Kew resources:

First published in Kew Bull. 64: 567 (2009)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Kew Bulletin

  • Bor, N. L. (1940). Flora of Assam. 5. Govt. of Assam. Shillong.
  • Gamble, J. S. (1896). The Bambuseae of British India. Ann. Roy. Bot. Gard., Calcutta 7: 1 – 133. tt.1 – 119.
  • Majumdar, R. B. (1989). Bambusoideae. In: S. Karthikeyan, S. K. Jain, M. P. Nayar & M. Sanjappa (eds.), Florae IndicaeEnumeratio — Monocotyledonae. Botanical Survey of India, Calcutta: 274 – 254.
  • Seethalakshmi, K. K. & Kumar, M. S. Muktesh (1998). Bamboos of India: A compendium. Kerala Forest Research Institute, Peechi & International Network for Bamboo and Rattan, Beijing, Eindhoven, New Delhi.
  • Shukla, U. (1996). Grasses of north-eastern India. Scientific Publishers, Jodhpur.
  • Tewari, D. N. (1992). A Monograph on Bamboo. International Book Distributors, Dehra Dun.
  • Widjaja, E. A. (1987). A revision of MalesianGigantochloa. Reinwardtia 10: 291 – 380.

GrassBase - The Online World Grass Flora
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Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Bulletin
Kew Bulletin
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0