Nelumbo - The Bulletin of the Botanical Survey of India

Vivek, C. P.

• A New Species Eragrostis henryi (Poaceae:Eragrostideae) from Tamil Nadu, India

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Authors

C. P. Vivek ¹, G. V. S. Murthy ¹, V. J. Nair ¹

Affiliations
1 Botanical Survey of India, Southern Regional Centre, Coimbatore - 641 003, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 54 (2012), Pagination: 9-12

Abstract

A new species, Eragrostis henryi, similar to E. minor Host and E. tremula Hochst. ex Steud. was collected in the Kanyakumari district, Tamil Nadu, India, and is described and illustrated here.

Keywords

Poaceae, Eragrostis, New Species, Tamil Nadu, India.

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• On the Confusion in the Identity of Eragrostis atrovirens, E. gangetica and E. nutans

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Authors

C. P. Vivek ¹, G. V. S. Murthy ¹, V. J. Nair ¹

Affiliations
1 Botanical Survey of India, Southern Regional Centre, TNAU Campus, Coimbatore - 641 003, Tamil Nadu, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 55 (2013), Pagination: 94-101

Abstract

There is a lot of confusion in the identity of Eragrostis atrovirens (Desf.) Trin. ex Steud., E. gangetica (Roxb.) Steud. and E. nutans (Retz.) Nees ex Wight & Am. resulting in many wrongly identified sheets in various herbaria and also confusing descriptions in literature. Based on detailed study this problem has now been resolved. Table given shows actual differences among the three species. Key for identification and authentic descriptions and images of spikelets and caryopses have also been provided.

Keywords

Poaceae, Eragrostis, Identity Problems.

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• A Note on Eragrostis rottleri (Poaceae) and its Lectotypification

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Authors

C. P. Vivek ¹, G. V. S. Murthy ¹, V. J. Nair ¹

Affiliations
1 Botanical Survey of India, Southern Regional Centre, TNAU- Campus, Coimbatore-641003, Tamil Nadu, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 55 (2013), Pagination: 109-112

Abstract

No abstract.

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• Eragrostis Jainii (Poaceae: Eragrostideae) a New Species from Kerala, India

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Authors

C. P. Vivek ¹, G. V. S. Murthy ¹, V. J. Nair ¹

Affiliations
1 Botanical Survey of India, Southern Regional Centre, TNAU-Campus, Coimbatore-641003, Tamil Nadu, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 55 (2013), Pagination: 1-5

Abstract

Eragrostis jainii, a new species collected from Manjeshwar, Kannur District of Kerala is illustrated and described. This species is allied to E. unioloides (Retz.) Nees ex Steud. and E. mokensis Pilg. From the former species it differs mainly by the linear panicle with branches adpressed to the main axis, more compact and sharply acute spikelet, thick and wavy rachilla, acuminate lemma, narrow and acuminate palea with ciliate keels. It differs from E. mokensis by the inflorescence branches adpressed to the main axis, spikelets apex not bluntly acute, lemma not orbicular, palea keels ciliate, stamens 2 and absence of a glandular ring below the nodes.

Keywords

Eragrostis, Poaceae, New species, Kerala, India.

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• A Study on the Caryopses Morphology of the Grass Genus Eragrostis in India

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Authors

C. P. Vivek ¹, G. V. S. Murthy ¹, G. Gnanasekaran ¹, K. A. A. Kabeer ¹, V. J. Nair ¹

Affiliations
1 Botanical Survey of India, Southern Regional Centre, Coimbatore – 641 003, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 57 (2015), Pagination: 1-10

Abstract

A study on the caryopses morphology of Indian Eragrostis Wolf using Light Microscope and Scanning Electron Microscope is presented. A total of 44 species have been studied. Emphasis has been given to their shape, dimensions, colour, outline in cross section and surface features. The shape varies from ovoid, obovoid, ellipsoid, oblong with truncate or obtuse ends, globose, subglobose, prism like and angled with or without lateral grooves. In cross section the shape varies from circular, cordate, obcordate, ovate and obovate etc. Surface cell reticulations are mostly narrow and rectangular.

Keywords

Caryopses, Morphology, Eragrostis, Poaceae, India.

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References

• BOECHAT, S.C. AND H.M. LONGHI-WAGNER. 2003. Análise do fruto em especies de Eragrostis Wolf (Poaceae). Iheringia 58: 131−166.
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• GIRALDO-CANAS, D., P.M. PETERSON AND I. SANCHEZ VEGA. 2012. The genus Eragrostis (Poaceae: Chloridoideae) in northwestern South America (Colombia, Ecuador, and Peru): Morphological and taxonomic studies. Bibl. Jose Jeron. Trian. 23: 1–180.
• HEYWOOD, V.H. AND P.H. DAVIS. 1963. Principles of Angiosperms taxonomy. (Princeton NJ: Van Mostrand).
• LAZARIDES, M. 1997. A revision of Eragrostis (Eragrostideae, Eleusininae, Poaceae) in Australia. Austral. Syst. Bot. 10: 77−187.
• PETERSON, P.M. AND J. VALDES-REYNA. 2005. Eragrostis (Poaceae: Chloridoideae: Eragrostideae: Eragrostidinae) from north eastern Mexico. Sida 21: 1365–1420.
• PETERSON, P.M. AND I. SÁNCHEZ VEGA. 2007. Eragrostis (Poaceae: Chloridoideae: Eragrostideae: Eragrostidinae) of Peru. Ann. Missouri Bot. Gard. 94: 745−790.
• TERRELL, E. E. AND P. M. PETERSON. 1993. Caryopsis morphology and classification in the Triticeae (Pooideae: Poaceae). Smithsonian Contr. Bot. 83: 1−25.
• VIVEK, C.P., G.V.S. MURTHY AND V.J. NAIR. (2013) 2014. On the confusion in the identity of Eragrostis atrovirens, E. gangetica and E. nutans. Nelumbo 55: 94–10.

• Lectotypification of Eragrostis maderaspatana

Abstract Views :205  |  PDF Views:107

Authors

C. P. Vivek ¹, G. V. S. Murthy ¹, V. J. Nair ¹

Affiliations
1 Botanical Survey of India, Southern Regional Centre, Coimbatore - 641 003, Tamil Nadu, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 57 (2015), Pagination: 40-42

Abstract

The name Eragrostis maderaspatana is lectotypified in the present paper with a discussion regarding its nomenclature history. The salient features of this species are also provided mainly to distinguish this from its allied species, Eragrostis minor Host.

Keywords

Eragrostis maderaspatana, Lectotypification.

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References

• BOR, N.L. 1960. The Grasses of Burma, Ceylon, India and Pakistan (excluding Bambuseae). London.
• HOOKER, W.J. AND G.W. WALKER-ARNOTT. 1830 - 41. The Botany of Captain Beechey’s Voyage. Henry G. Bohn, London.
• LAZARIDES, M. 1994. In: DASSANAYAKE & al., A Revised Handbook to the Flora of Ceylon. Amerind, New Delhi.
• STAPF, O. 1896. Eragrostis. 312 – 327. In: HOOKER, J.D. (ed.), The Flora of British India. Vol. 7. London.

• On the Identity of Eragrostis dayanandanii (Poaceae) Described from Tamil Nadu, India

Abstract Views :197  |  PDF Views:125

Authors

C. P. Vivek ¹, G. V. S. Murthy ¹, V. J. Nair ¹

Affiliations
1 Botanical Survey of India, Southern Regional Centre, Coimbatore - 641 003 (Tamil Nadu), IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 57 (2015), Pagination: 43-45

Abstract

The name Eragrostis dayanandanii Ravichandran & al. is reduced as synonym under Eragrostis gangetica (Roxb.) Steud. The characters of the species are tabulated and provided images of spikelets, lemmas and caryopses. Also discussed about the types of hairs on keels of palea found in Indian Eragrostis.

Keywords

Eragrostis dayanandanii, Poaceae, Identity Problem.

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References

• RAVICHANDRAN, P., S. KRISHNAN, N.P. SAMSON, V.R. SUBBIAH, K. AZHAKANANDAM AND D. NARASIMHAN. 1996. Eragrostis dayanandanii – A new grass from Tamil Nadu, India. Kew Bull. 51(1): 155–157.

• Microhairs of Indian Eragrostis Wolf (Poaceae) and their Taxonomic Significance

Abstract Views :279  |  PDF Views:116

Authors

C. P. Vivek ¹, G. Gnanasekaran ², G. V. S. Murthy ², V. J. Nair ²

Affiliations
1 Botanical Survey of India, Andaman and Nicobar Regional Centre, Port Blair - 744102, Andaman and Nicobar Islands, IN
2 Botanical Survey of India, Southern Regional Centre, TNAU Campus, Coimbatore - 641003, Tamil Nadu, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 58 (2016), Pagination: 48-56

Abstract

The morphology of microhairs on leaf surfaces of 44 Eragrostis species from India is studied using Scanning Electron Microscope (SEM) and the results are presented. Three distinct types of microhairs have been observed viz. chloridoid, panicoid and enneapogon (intermediate) and their features are tabulated.

Keywords

Eragrostis, India, Leaf Surface, Microhairs.

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References

• AMARASINGHE, V. AND L. WATSON. 1990. Taxonomic significance of microhair morphology in the Genus Eragrostis Beauv. (Poaceae). Taxon. 39 (1): 59–65.
• BOR, N. L. 1960. The Grasses of Burma, Ceylon, India and Pakistan (excluding Bambuseae). Pergamon Press, London.
• CLAYTON, W. D. AND S. A. RENVOIZE. 1986. Genera Graminum, grasses of the world. Kew Bulletin Additional Series. 13: 1–389.
• GIRALDO-CANAS, D., P. M. PETERSON AND I. SANCHEZ VEGA. 2012. The genus Eragrostis (Poaceae: Chloridoideae) in northwestern South America (Colombia, Ecuador, and Peru): Morphological and taxonomic studies. Bibl. Jose Jeron.Trian. 23: 1–180.
• INGRAM, A. L. 2010. Evolution of leaf blade anatomy in Eragrostis (Poaceae). Syst. Bot. 35(4): 755–765.
• JOHNSTON, C. R. AND L. WATSON. 1976. Microhairs: A universal characteristic of non-festucoid grass genera? Phytomorphology. 26: 297–301.
• KARTHIKEYAN, S., S. K. JAIN, M. P. NAYAR AND M. SANJAPPA. 1989. Poaceae. In: Florae Indicae Enumeratio Monocotyledonae. Botanical Survey of India, Calcutta.
• TATEOKA, T., S. INOWE AND K. KAWANO. 1959. Notes on some grasses IX: Systematic significance of bicellular microhairs of leaf epidermis. Bot. Gazz. 121(2): 80–91.
• METCALFE, C. R. 1960. Anatomy of the Monocotyledons I. Gramineae. Oxford University, London.
• VELDKAMP, J. F. 2002. Revision of Eragrostis (Gramineae, Chloridoideae) in Malesia. Blumea 47: 157–204.
• VIVEK, C. P., G.V.S. MURTHY AND V. J. NAIR. 2012. A new species Eragrostis henryi (Poaceae: Eragrostideae) from Tamil Nadu, India. Nelumbo 54: 9– 12.
• VIVEK, C. P., G.V.S. MURTHY AND V. J. NAIR. 2013a. Eragrostis cilianensis (Poaceae: Eragrostideae): A new species from the hills of Kerala and Tamil Nadu, India. Indian J. Forestry 36 (3): 401–404.
• VIVEK, C. P., G. V. S. MURTHY AND V. J. NAIR. 2013b. Eragrostis jainii (Poaceae: Eragrostideae) A new species from Kerala, India. Nelumbo 55:1– 5.
• VIVEK, C. P., G. V. S. MURTHY AND V. J. NAIR. 2013c. Eragrostis nilgiriensis sp. nov. (Poaceae) from Nilgiri district, Tamil Nadu, India. Nord. J. Bot. 31: 700–703.
• WATSON, L., H. T. CLIFFORD AND M. J. DALLWITZ. 1985. The classification of Poaceae: subfamilies and subtribes. Australian J. Bot. 33: 433–484.

• On the Identity of Seven Interrelated Species of Eragrostis (Poaceae:Chloridoideae) in India

Abstract Views :280  |  PDF Views:177

Authors

C. P. Vivek ¹, G. V. S. Murthy ², V. J. Nair ²

Affiliations
1 Botanical Survey of India, Andaman and Nicobar Regional Centre, Port Blair – 744102, IN
2 Botanical Survey of India, Southern Regional Centre, Coimbatore – 641002, IN

Source

Nelumbo - The Bulletin of the Botanical Survey of India, Vol 61, No 2 (2019), Pagination: 52-65

Abstract

Mode of spikelet disarticulation in Eragrostis amabilis, E. ciliaris, E. ciliata, E. coarctata, E. deccanensis, E. riparia and E. viscosa are similar i.e., from apex downwards. Furthermore, they are interrelated in a number of morphological as well as floral characters. Hence, their circumscription and identity have considerable confusions in India. The present study provides the reliable taxonomic characters to distinguish them unambiguously.

Keywords

Eragrostis, Identity, India, Poaceae:Chloridoideae.

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References

• BOISSIER, P.E. 1884. Flora Orientalis Sive Enumeratio Plantarum in Oriente a Graecia et Aegypto ad Indiae Fines Mucusque Observatarum. H. Georg: Basel, Geneve. 5(2): i–iii, 429–868.
• CLAYTON, W.D. AND S.A. RENVOIZE 1986. Genera Graminum, grasses of the world. Kew Bull. Addit. Ser. 13: 1–389.
• GIRALDO-CANAS, D., P.M. PETERSON AND I. SANCHEZ VEGA 2012. The genus Eragrostis (Poaceae: Chloridoideae) in north-western South America (Colombia, Ecuador, and Peru): Morphological and taxonomic studies. Biblioteca J. J. Triana (Bogota, D.C., Colombia). 24: 1–195.
• INGRAM, A.L. 2010. Evolution of leaf blade anatomy in Eragrostis (Poaceae). Syst. Bot. 35: 755–765.
• INGRAM, A.L. AND J.J. DOYLE 2007. Eragrostis (Poaceae): Monophyly and infrageneric classification. Aliso 23: 595–604.
• STAPF, O. 1896. Eragrostis. In: HOOKER, J.D. (ed.). Vol. 7: 312–327. London: The Flora of British India.
• VELDKAMP, J.F., K. THOIBA AND A.K. PRADEEP 2017. Eragrostis paniciformis (Poaceae): A new record for Asia from Kerala, India. Rheedea, 27(1): 46–49.
• VIVEK, C.P., G.V.S. MURTHY AND V.J. NAIR 2013. On the confusion in the identity of Eragrostis atrovirens, E. gangetica and E. nutans. Nelumbo, 55: 94–101.
• VIVEK, C.P., G.V.S. MURTHY, G. GNANASEKARAN, K.A.A. KABEER AND V.J. NAIR 2015. A study on the caryopses morphology of the grass genus Eragrostis in India. Nelumbo, 57: 1–10.
• UMAMAHESHWARI, P. AND P. DANIEL 1998. Eragrostis amabilis (L.) Wight & Arn. (Poaceae) and its varieties. J. Econ. Taxon. Bot. 22(1): 211–216.