Phyllanthus species for ID from Karnal, Haryana-GS06012020-1

[Gurcharan Singh]

Phyllanthus species for ID from Karnal, Haryana, September 15, 2011.  

Dr. Gurcharan Singh

Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Mob: 9810359089

https://sing96.wixsite.com/mysite-1

[Dinesh Valke]

Gurcharan ji, most probably Phyllanthus virgatus. Let us wait for validating comment(s).

Regards.

Dinesh

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[dr.rakesh Singh]

This and one from Chikmagalur , both look to me as Phyllanthus virgatus . (Or should we say P. simplex ? )

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[Gurcharan Singh]

Thanks Rakesh ji, Tapas ji has confirmed that two are now conspecific. Four members have confirmed P. virgatus.

Dr. Gurcharan Singh

Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Mob: 9810359089

https://sing96.wixsite.com/mysite-1

[Gurcharan Singh]

Not represented in our database.

Dr. Gurcharan Singh

Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Mob: 9810359089

https://sing96.wixsite.com/mysite-1

[J.M. Garg]

Thanks, Singh ji 

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With regards,
J. M. Garg

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[Tapas Chakrabarty]

P. simplex if considered distinct from P. virgatus.

[Gurcharan Singh]

Catalogue of Life considers it synonym P. virgatus proper 

So does World Flora Online (New version of TPL)

Also eFlora of China

Dr. Gurcharan Singh

Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Mob: 9810359089

https://sing96.wixsite.com/mysite-1

[J.M. Garg]

As per efi thread :  

Webster (in Pacific Science 40: 94. 1986) indicates that the populations in Asian regions including India and Sri Lanka are P. simplex Retz. and separable from P. virgatus which appear to be restricted to Pacific Islands.P. simplex has strongly papillate ovaries and entire female disc, whereas P. virgatus has smooth ovaries and irregularly dissected female disc.  

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[Tapas Chakrabarty]

Phyllanthus simplex Retz., Observ. Bot. 5: 29. 1788; Roxb., Hort. Bengal. 69. 1814 & Fl. Ind. 3: 654. 1832. Type citation: “E Tranquebaria mi Sit Honor, KÖNIG.” Type (lectotype, designated by Fischer, 1932: 65): India, Koenig s.n. (LD1742457!). Syntypes: India, Koenig s.n. (C10011341!, C10011342!, C10011343!). Distribution: Sri Lanka and India to SE Asia, S China and Malesia (in Melanesia intergrading with P. virgatus G. Forst.).

Recently Verwijs et al. (2019: 247) applied a wide concept and treated P. simplex as well as P. narayanswamii Gamble, a South Indian endemic as synonyms of the Pacific species P. virgatus G.Forst., though resorting to a narrow concept in maintaining P. gardnerianus (Wight) Baill. as a closely allied distinct species. I have, however, followed here the concept of Webster (1986: 94–95, 1997: 213) who considered P. simplex as a distinct species differing from P. virgatus in the in the larger seeds, longer fruiting pedicels, papillate ovaries and undissected disc of female flowers. In this context, it may be mentioned that recent collections of P. narayanswamii are now available (Satish & Rao, 2019: 20) which show that P. narayanswamii is different and distinct from P. simplex in the relatively broader coriaceous leaves, slightly thickened along margins and the lateral nerves being much stronger and conspicuously raised on the undersurface. In these characters, P. narayanswamii apporoaches closer to P. gardnerianus which, however, does not exhibit such strong lateral venation of the leaves and therefore it seems possible that these two species may ultimately be united, at least as varieties, when further gatherings are made available.

The publication of Werwijs et al. is attached herewith.

Kind regards,

Tapas.

[Dinesh Valke]

Thanks Tapas ji for the clarification.

Regards.

Dinesh

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