Glochidion acuminatum

Glochidion acuminatum Müll.Arg., Linnaea 32: 68 1863. (syn: Glochidion acuminatum var. acuminatum ; Glochidion hayatae Croizat & H.Hara; Glochidion hypoleucum Hayata [Illegitimate]);
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Nepal to Indo-China and Nansei-shoto: Assam, Bangladesh, Cambodia, China South-Central, China Southeast, East Himalaya, Hainan, Myanmar, Nansei-shoto, Nepal, Taiwan, Thailand as per POWO;

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Similar to G.velutinum but less pubescent throught , leaves lanceolate, 7-12*2-3.5cm, acuminate, ovate often green above and pale beneath when dry, female flowers with short columnar style with 4-5 short erect lobes, fruit small 6-8mm diameter, deeply 4-6lobed with minute persistent columnar style.

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Glochidion acuminatum (Phyllanthaceae) from Arunachal Pradesh : 5 posts by 2 authors. Attachments (1)
Glochidion acuminatum Müll.Arg. var. acuminatum.
Noted to be a tree. Image taken and shared by Late M. K. Pathak.

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Thanks, … WCSP gives it as a syn. of Phyllanthus meghalayensis Chakrab. & N.P.Balakr., J. Econ. Taxon. Bot. 33: 714 (2009).
Is there any relationship like this?

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Well, the species under discussion was transferred to Phyllanthus following the suggestions given by Kathriarachchi et al. (2005) and Hoffmann et al. (2006) based on molecular studies that the genera Breynia, Sauropus and Glochidion should be merged under a single genus, Phyllanthus. However, subsequently there were arguments that if such a merger is done, Phyllanthus will become a mega-genus which will further complicate the taxonomy of this already  difficult and diverse genus. Therefore, as per the latest views, Glochidion should be treated as a separate genus, as done by J. D. Hooker in 1887, well characterized by and distinguished from Phyllanthus by the absence of disc glands in flowers. At present, as per the present acceptance and usage, the genus Phyllanthus in its present circumscription is distinct from Glochidion, Sauropus and Breynia, the last two being treated now as a single genus, Breynia.
Hence, as per the current usage, we will consider Glochidion acuminatum as a good species with two varieties, var. acuminatum and var. siamense.

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MS March, 2018/18 Glochidion sp. for id : 16 posts by 3 authors. Attachments (2)
Place : Hmuifang, Mizoram

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This is very interesting.  The deeply lobed 3-4-locular capsules and the small, free or almost free styles clearly points to Glochidion mishmiense Hook.f., originally described from the Mishmi Hills of Arunachal Pradesh and recently attributed to China.  However, please note that the branchlets, petioles and leaves on the undersurface here appear to be completely glabrous.  If it is so, you can describe this as a new variety of G. mishmiense (if you have collected specimens).  It may be mentioned that species of Glochidion invariably have a glabrous/ pubescent counterpart, e.g. G. zeylanicum, G. multiloculare, and so on. 

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Please reject my earlier comments.
After further obsevations, I now confirm this as Glochidion sphaerogynum, possibly an addition for efi. I was confused due to mention of 1500 m altitude.

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The leaves will be strongly rolling/curling upwards along margins on drying.

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… has expressed some doubts in a personal mail. If the styles are slightly bulging and button-like then sphaerogynum or else if the styles are connate and columnar then G. acuminatum.

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Well, the characters of the female flowers, especially the styles and the fruits are among the important diagnostic characters in the genus Glochidion.

The present images are of very low resolution. We can see a leafy twig with infructescences having clusters of pedicellate capsular fruits in the axils of fallen leaves simulating a raceme (pseudoraceme). Next, the fruits were 4-locular, deeply lobed and some lobes again bilobulte. In this alliance we have species like G. tirupathiense, G. acuminatum, G. sphaerogynum and so on. They are distinguishable mainly by the charcters of the styes.

In the present images we can observe a few fruits with persistent styles which are in a ring, hollow at the middle and very short in length.  It is not possible to ascertain whether there was a short column subtending them. In view of these observation and an incomplete picture as to the exact structure and size of the styles, the tentative identification here is Glochidion acuminatum Müll.Arg. var. acuminatum.

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This tree was identified as Glochidion sphaeroginum at BSI, Shillong

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Sorry !! It may be wrong

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BSI Shillong have the expertise and field experience in North East. It is better to follow their identification.

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But it has to be backed with resources available online and offline.

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I have already explained my observations and tentative identification. Nothing more to say for the present image.

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SK 2289 12 November 2019 : 10 posts by 3 authors. Attachments (3)

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Attachments (1)- 7 mb.

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Attachments (1)- 7 mb.

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Attachments (1)- 7 mb.

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It occurs up to 1800 m.

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Glochidion : 2 posts by 2 authors.

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MS,Nov ,2021/61 Glochidion multiloculare ? for id.: 2 images.
Location : Cherhlun

I think yes, Glochidion multiloculare (Rottler ex Willd.) Voigt

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Now I find that … has raised the issue elsewhere whether this is G. acuminatum. Okay, here the fruits are broken and size of the fruits are not known to us. If these fruits are under 10 mm in diameter and 4-5-chambered, then yes, it is Glochidion acuminatum instead.

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Keys pl.?

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References:
efi thread  POWO  Catalogue of Life  The Plant List Ver.1.1  WCSP  IPNI  Annotated checklist of Flowering plants of Nepal  India Biodiversity Portal  Bhutan Biodiversity Portal  Useful Tropical Plants  Asianflora  Taxonomic notes on Glochidion acuminatum and G. triandrum – Biotaxa