ID pls : Unknown shrub from Kamrup district, Assam

[Karuna Das]

Dear All,
Attached images are unknown shrubs. One of the interesting feature of this sp. I found is that some branches of this plant are straggling(IMG_1124 & IMG_1125) and some are twiner(IMG_1126, IMG_1127), both bearing flowers.

Date :21.12.2012
Location: Kamrup district
Family : Unknown
Genus & species : Unknown
Habitat: Grows wild on roky slopes.
Habit : Shrubs
Flower : Large, white with orange coloured corolla tube


With regards
Karuna Kanta Das
Guwahati 781012

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[J.M. Garg]

Forwarding again for Id assistance please.

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J.M.Garg

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[Ritesh Kumar Choudhary]

I think Jasminum sp.

Regards,

Ritesh. 

[J.M. Garg]

Feedback from another thread https://groups.google.com/forum/?hl=en&fromgroups#!topic/indiantreepix/hLLjwcG0r1w:

 

"It looks like Nyctanthus arbor tris-tris.

Promila"

"It may be a Jasminum species.

Regards 

Vijayasankar Raman"

 

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[Janani Eswar]

I am not sure of Nyctanthes Promila ji, as far as I know ( and I can't claim too much) the flowers always have serration on the tip of the petals. Also it only blooms in the evenings.

Tried searching for all Jasminum species in FOI but didn't get anywhere...

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Janani Eswar

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[radhaveach]

What about Jasminum malabaricum?

best
Radha

[J.M. Garg]

Forwarding again for Id assistance please.

Some earlier relevant feedback:

I think Jasminum sp.- from Ritesh ji.

Feedback from another thread https://groups.google.com/forum/?hl=en&fromgroups#!topic/indiantreepix/hLLjwcG0r1w: "It looks like Nyctanthus arbor tris-tris. Promila" "It may be a Jasminum species. Regards Vijayasankar Raman"

I am not sure of Nyctanthes Promila ji, as far as I know ( and I can't claim too much) the flowers always have serration on the tip of the petals. Also it only blooms in the evenings. Tried searching for all Jasminum species in FOI but didn't get anywhere...- from Janani ji.

What about Jasminum malabaricum? best Radha

efi site link of Jasminum malabaricum as below: https://sites.google.com/site/efloraofindia/species/m---z/o/oleaceae/jasminum/jasminum-malabaricum

---------- Forwarded message ----------
From: Karuna Das <kd_...@rediffmail.com>
Date: 31 December 2012 07:43
Subject: [efloraofindia:141842] ID pls : Unknown shrub from Kamrup district, Assam
To: indian...@googlegroups.com
Cc: kd_...@rediffmail.com

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[surajit koley]

Sir,

According to a document on  the "variation in the flower of Jasminum malabaricum Wight", found in the net, "the flowers open during March and... a few left after the end of April". It also informs flowers with seven calyx teeth are rare and with eight teeth very rare.

J. malabaricum found in the FoI and in Flickr displays longer & narrower corolla tube.

I copy a few text from "Bengal Plants" :-

A. Erect shrubs or small trees -

  (i) leaves subcordate or ovate .... calyx teeth short ------- J. arborescens Roxb.

  (ii) leaves cuneate.... calyx teeth minute ------- J. roxburghianum Wall.

B. Climbing, rarely sub-erect shrubs -

  (iii) leaves all simple, branchlets pubescent, hairy or villous; calyx pubescent; cymes many flowered, bracts white prominent, calyx-teeth long.... sometimes not climbing ------ J. coarctatum Roxb.

  (iv) leaves all simple, branchlets pubescent, hairy or villous; calyx pubescent; cymes many flowered, bracts not prominent, .... calyx-teeth short ... always climbing ------ J. scandens Vahl

  (v)  leaves all simple, branchlets pubescent, hairy or villous; calyx pubescent; cymes many flowered, bracts often absent .... calyx-teeth long, subulate, leaves hairy ------ J. pubescens Willd.

  (vi) leaves all simple, branchlets pubescent, hairy or villous; calyx pubescent; cymes few flowered in wild (many in cult.), ... calyx-teeth long, subulate, leaves ovate ------- J. sambac Ait.

  (vii) leaves all simple, branchlets pubescent, hairy or villous; calyx pubescent; cymes few flowered in wild (many in cult.), ... calyx-teeth long, subulate, leaves narrowly elliptic ---- J. listeri King.

  (viii) leaves all simple; branchlets glabrous; calyx glabrous; ,,, cymes few-flowered; calyx teeth long; leaves acuminate,,,, 3-nerved ---- J. laurifolium Roxb.

  (ix) leaves, at least some, with a pair of lateral leaflets, branchlets & calyx pubescent; .... cymes many-flowered ----- J. auriculatum Vahl.

F. I. i. 92. describes -

J. laurifolium R.

Scandent, polished; leaves opposite, ovate-lanceolate, lucid three-nerved; flowers axillary and terminal; ...... very elegant climbing and twining; ... a native of mountainous countries east of Bengal, where it flowers during the cool season.....  calyx from five to seven-cleft; corol tube twice the length of calyx, sub-clavate; border of form nine to tweleve, ensiform, spreading segments, which are as long as the tube; stamina within the tube.... style and stigma clavate, scarcely reaching to the anthers. 

Found pics at 1) http://www.performancenursery.gardenideaswest.com/PlantMaster/Photos/3144a.jpg (source : http://www.performancenursery.gardenideaswest.com/eplant.php?plantnum=3144&return=c) 2) http://performancenursery.gardenideaswest.com/PlantMaster/Photos/3144b.jpg.

But, F. I doesn't ,mention flower colour and i am not sure if the plant in this thread can be J. laurifolium R.

F. I. i. 96. describes -

J. angustifolium Vahl.

Shrubby, twining, ..... leaves opposite, petioled, ovate, smooth of shining deep green, flowers terminal..... most beautiful species of Jasmine... it abounds in every forest on the coast of Coromandel. Blossoms during the hot season; but in a state of cultivation flowers are produced the greatest part of the year. ..... flowers terminal generally three-fold, peduncled, large, white, with a faint tinge of red..... it grows easily in every soil and situation, is constantly covered with leaves.....

Thank you,

Regards,

surajit

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[J.M. Garg]

I do not think matches with images at Jasminum malabaricum Wight

It also does not have distribution there.

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J.M.Garg

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Winner of Wipro-NFS Sparrow Awards 2014 for efloraofindia. 

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[Gurcharan Singh]

Forwarding for ID

Distributed as Jasminum sp.- Kamrup district, Assam

Group discussion at

ID pls : Unknown shrub from Kamrup district, Assam (google.com)

[Gurcharan Singh]

Forwarding for ID

Distributed as Jasminum sp.- Kamrup district, Assam

Group discussion at

ID pls : Unknown shrub from Kamrup district, Assam (google.com)

[surajit koley]

Assuming leaves are opposite, I would suggest Jasminum laurifolium Roxb. ex Hornem.

Thank you.

With regards,

Surajit Koley

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[J.M. Garg]

Thanks, Surajit ji,

Looks different from images at Jasminum laurifolium var. laurifolium

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[surajit koley]

Garg Sir,

It's quite possible that I am altogether wrong.

But....

• don't you think that before making any suggestion I may already have visited the efI's page?
• Have you noticed that all uploads in your referred efI page come from cultivated individuals?
• Don't you think that wild one may vary a little, or even to some extent?

Nothing said above ever implies that this species is J. laurifolium.

Thank you.

With regards,

Surajit Koley

[J.M. Garg]

This may be Jasminum listeri as per keys and species available in Mizoram in MS Nov, 2020/05 Jaminum sp. for Id and as per GBIF- specimen 1, 2 and POWO.

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J.M.Garg

[surajit koley]

Yes, Garg Sir, I was totally wrong.

I am not sure as well, that if it can be J. listeri ..... here is the protologue - https://archive.org/details/recordsofbotanic11893bota/page/349/mode/1up?view=theater

Thank you.

Best regards,

Surajit Koley

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[surajit koley]

Also check the probability of Jasminum elongatum -

1. http://plantillustrations.org/species.php?id_species=566251
   
2. http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:609469-1

The point I miss in these attached pictures is absence of leafy bracts subtending the capitate cymes. 

However, a blog is there covering certain identifications - https://plantsnamebubai.home.blog/

Thank you.

Best regards,

Surajit Koley

[J.M. Garg]

Thanks, Surajit ji.

I found the posted plant to be different from Jasminum elongatum as per keys and as per GBIF specimens from India- specimen 1 and specimen 2

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J.M.Garg

[surajit koley]

I admit, Garg Sir, I am very confused with this species of Jasmium. First, I made a grave mistake by suggesting J. laurifolium, overlooking the leaf character. Then I was confused again to decide if the inflorescence should be treated as an axillary or a terminal one!

Later, you suggested J. listeri and referred to two herbarium collections at GBIF. But, the protologue of J. listeri tells me -

1. leaf base cuneate ( doesn't match with pic no. "6._Unknown_sp._-_Leaf_-IMG_1107")
2. cymes rather lax (doesn't match with pic no.  "5, 7 & 8")
3. corolla white, lobes six (again  doesn't match with pic no.  "7 & 8")

So, I am hesitant to accept.

There is a paper on Jasminum from Arunachal Pradesh - https://www.researchgate.net/publication/318362029_Jasminum_pentaneurum_Hand-Mazz_Oleaceae_An_Addition_to_Indian_Flora_from_Arunachal_Pradesh_North_East_India

The KEY in the above paper   goes thus :-

1. 1a Leaves all simple -> 2 -> 2a Leaves with primary veins pinnately arranged -> 3 -> 3a Inflorescence open, lax, 1-5 flowered -> 4 (J. listeri is placed under it)
2.   1a Leaves all simple -> 2 -> 2a Leaves with primary veins pinnately arranged -> 3 ->  3b  Inflorescence dense, many flowered -> 8 thereafter 8a & 8b to 9 to 9b (here lies J. elongatum) !
   

Now, you decide, and I will accept it.

Thank you.

Best regards,

Surajit Koley

[J.M. Garg]

Thanks, Surajit ji.

Hi, Karuna ji,

May I request you to pl. post high resolution images to properly check different characters. 

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With regards,
J.M.Garg

[J.M. Garg]

Thanks, Surajit ji.

I go with you as per Flora Fauna Web  Useful Tropical Plants  Factsheet

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J.M.Garg

[surajit koley]

Thank you, SIr.

Best regards,

Surajit Koley