23112019EPT27

[Pandian Tensingh]

Dear members

Presenting this creeper grown among bushy shrubs

 Jasminum angustifolium ?

Location : Chennai outskirts

Date :15.11.2019

Elevation : 33 mts.

Thanking you

E.P.Tensingh

[Saroj Kasaju]

Looks like Jasminum sp.

Thank you 

Saroj Kasaju

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Thank you.

Saroj Kasaju

[Saroj Kasaju]

Jasminum angustifolium ??

Thank you.

Saroj Kasaju

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[J.M. Garg]

Looks different from Jasminum angustifolium

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With regards,
J.M.Garg

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[J.M. Garg]

Forwarding again for Id assistance please.

I tried but could not find a match as per comparative images at Jasminum

---------- Forwarded message ---------
From: Pandian Tensingh <pandian....@gmail.com>
Date: Sat, 23 Nov 2019 at 15:31
Subject: [efloraofindia:335464] 23112019EPT27
To: efloraindia <indian...@googlegroups.com>

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[J.M. Garg]

On further review, I think close to Jasminum angustifolium (L.) Willd. only.

[J.M. Garg]

Thanks, Lalithamba ji.

On Thu, 5 Dec 2019 at 20:20, Lalithamba Avadhanam <alali...@gmail.com> wrote:

to me it looks Jasminum sessiliflorum; reasons ;

leaves small2-3.5cm x 1.5-2cm;;ovate, obtuse at base,petiole short; nerves obscure, usu. pubescent on the back on nerves;  cymes usually 1-flowered; terminal; white, calyx lobes nearly 1cm long, corolla 5-8 lobes, long; fruit not seen here; as more characters match with Jasminum sessiliflorum I go with J.sessiliflorum.(ref.as per Gamble FPM; distribution in Chengalpattu, Kancheevaram are cited) 

thank you

regards

A.Lalithamba  

[ushadi]

originally i was a bit concerned that it may not be any known jasmine, because of those rounded leaves

but since then i have found  mentions of some others being confused with it also

Owner of Top tropicals for example

https://toptropicals.com/html/toptropicals/articles/shrubs/jasminum_mystery.htm

so i went back t o the keys

i like Lalithamba's reasoning and key depiction

thanks, Lalithamba

Regards

Ushadi

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[Pandian Tensingh]

Thanks to Lalithamba ma'am for the ID and the reasoning.

With regards

E.P.Tensingh

[Pandian Tensingh]

Jasminium angustifolium , Jasminium sessiliforum . Are they different?

with regards

E.P.Tensingh

[J.M. Garg]

Pl. see discussions at Jasminum angustifolium var. sessiliflorum :: Puducherry :: 15 OCT 19

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[Pandian Tensingh]

Thank you.

with regards

E.P.Tensingh

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[S Kasim .]

In J angustifolium Corolla hypocrateriform, white with exterior of tube often pinkish-vinaceous.

S  Kasim

F1- 31, Thendral Nagar, 4th Street

Kallikuppam

Ambattur

Chennai-600053

On Thu, Dec 5, 2019 at 7:14 PM J.M. Garg <jmg...@gmail.com> wrote:

[J.M. Garg]

While looking for keys for the varieties, I was surprised with the following w.r.t. the calyx size:

Key to three varieties of J. angustifolium as per The taxonomic identity of Jasminum matthewii (Oleaceae) (2016)
1. Leaves recurved at margins; secondary veins distinct on both surfaces; domatia present at axils of veins beneath. Jasminum angustifolium var. hirsutum
1. Leaves not recurved at margins; secondary veins indistinct on both surfaces; domatia absent at axils of veins beneath. . 2
2. Venation distinct only on upper surface; inflorescence a cyme, (1–)3-flowered, sessile; calyx lobes 3–4 times longer than tube; fruiting calyx much longer than fruits. Jasminum angustifolium var. sessiliflorum
2. Venation obscure on both surfaces; inflorescence a cyme or corymb, (1–)4–7-flowered, pedunculate; calyx lobes almost equal to tube; fruiting calyx shorter than fruits.  Jasminum angustifolium var. angustifolium

This is in total contradiction to what I found in our observations as well as in An Excursion Flora of Central Tamilnadu, India By K. M. Matthew (1993):

Calyx lobes > three- fourth the length of the corolla tube for Jasminum angustifolium var. angustifolium

Calyx lobes < half as long as the corolla tube for Jasminum angustifolium var. sessiliflorum

[J.M. Garg]

Does the Gamble gives any keys between the two ?

[J.M. Garg]

Thanks a lot, Lalithamba ji, for clarity.

On Sat, 21 Dec 2019 at 15:17, Lalithamba Avadhanam <alali...@gmail.com> wrote:

Gamble described Jasminum sessiliflorum and J angustifolium ; now they are known as varieties of J.angustifolium , but hirsutum is not given; there is difference in fruit also, J.angustifolium var. angustifolium fruits in pairs, ovoid; buds pinkish ; but j.angustifolium var sessiliflorum fruit spherical, sessile, calyx much longer than fruit, solitary; hence attaching the fruit images; in J.angustifolium var. hirsutum stems hirsute; buds white; calux short, pedicel short, but not sessile like sessiliflorum; these are all my field observations

thank you

regards

A.Lalithamba

[J.M. Garg]

---------- Forwarded message ---------
From: Lalithamba Avadhanam <alali...@gmail.com>
Date: Sat, 21 Dec 2019 at 15:17
Subject: Re: [efloraofindia:335464] 23112019EPT27
To: J.M. Garg <jmg...@gmail.com>

Gamble described Jasminum sessiliflorum and J angustifolium ; now they are known as varieties of J.angustifolium , but hirsutum is not given; there is difference in fruit also, J.angustifolium var. angustifolium fruits in pairs, ovoid; buds pinkish ; but j.angustifolium var sessiliflorum fruit spherical, sessile, calyx much longer than fruit, solitary; hence attaching the fruit images; in J.angustifolium var. hirsutum stems hirsute; buds white; calux short, pedicel short, but not sessile like sessiliflorum; these are all my field observations

thank you

regards

A.Lalithamba