Bauhinia for ID AK

[arvind kadus]

Here is a Bauhinia showned by AjinkyaJi in Pune.Kindly do the ID. Dr.Kadus Arvind,Pune.

[Dinesh Valke]

Arvind ji ... most probably Hong Kong Orchid tree .. Bauhinia x blakeana, also known as Blake's bauhinia ... please wait for comment(s).
Regards.

[ajinkya gadave]

yes B.blakeana from me too.

[arvind kadus]

Ajinkya tumhi tar B.blakean ch mhanala hotat, confirmation sathi post kela ahe. Dinesh Ji B.veriagata che flowers suddha same ahet. taxonomically diff. sangata yeil kay? Any body else can. Dr.Kadus Arvind,Pune

[Dinesh Valke]

Arvind ji ... attempting to put some visual differences, they too may need validation !!

Blake's bauhinia has large leaves compared to B. variegata or B. purpurea ... PLUS richer in green colour, with a shine.

All the petals have striking pink colour, the central large petal being the most dark of all.
The veins on petals are brighter (white-added), contrary to darker veins in the other bauhinias ... my own thought.

Colour of B. variegata ranges from white to purple.

Please wait for easier difference(s).

Regards.

[Padmini Raghavan]

I am adding my pics of B blakeana in the hope that they will aid comparison. (However I do not notice any shine in the leaves.)

The flowers are very fragrant and a lovely sight.

Regards,

Padmini Raghavan.

[Dinesh Valke]

Many thanks Padmini ji for validating ... agreed there is no shine on the leaves.
Regards.

[Kenneth Greby]

That would be my first guess as well. If any seed pods present, then no, as it is a sterile hybrid.

Regards--
Ken.

---

From: Dinesh Valke <dinesh...@gmail.com>
To: arvind kadus <agasti...@yahoo.co.in>
Cc: indian...@googlegroups.com
Sent: Tue, September 21, 2010 8:11:22 AM
Subject: Re: [efloraofindia:47811] Bauhinia for ID AK

[Kenneth Greby]

This looks like B. purpurea to me.

Regards--
Ken.

---

From: arvind kadus <agasti...@yahoo.co.in>
To: indian...@googlegroups.com
Cc: ajinkya gadave <ajinky...@gmail.com>; dinesh valke <dinesh...@gmail.com>
Sent: Tue, September 21, 2010 8:44:13 AM
Subject: [efloraofindia:47816] Bauhinia for ID AK

[Gurcharan Singh]

Perhaps this should help

B. blakeana                                                    B. purpurea                                       B. variegata

Early flowering, Nov-Dec. in Delhi                      Early flowering Oct-Nov. in Delhi         Late flowering, Feb-March in Delhi

Leaves 15-20 cm across, cleft 14-1/3                 Leaves 10-15 cm across, cleft 1/2      Leaves 10-15 cm across, cleft 1/3

Fls. in long racemes                                         Fls. in short racemes                        Fls. in short racemes

Flowers 12-15 cm across, appear with leaves     Flowers 10-12 cm across, with leaves  Flowers 10-12 cm across, after leaves fall

Petals broad, overlapping,                                 Petals narrow, non-overlapping            Petals broad, overlapping

Petals rose-purple, veins whitish                        Petals pink, whitish in centre              Petals white with purplish veins, upper darker

Stamens 5                                                      Stamens 3                                         Stamens 5  

Pod not produced                                            Pod 12-25 cm long, 2-2.5 cm thick       Pod 15-25 cm long, 1.5-2 cm thick

-- 
Dr. Gurcharan Singh
Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297  Mob: 9810359089
http://people.du.ac.in/~singhg45/ 

[Gurcharan Singh]

I think there should be no doubt about both sets of plants (uploaded by Arvind ji and Padmini ji). Both belong to B. x blakeana. Agreed that sometimes the flower colour in B. purpurea may look similar, but that species has three stamens, and petals are much narrower. B. variegata has broader petals and five stamens, all nearly of the same length. B. x blakeana also has five stamens, of which three are longer and two shorter. This characteristic feature can be seen in both sets of photographs.

-- 
Dr. Gurcharan Singh
Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297  Mob: 9810359089
http://people.du.ac.in/~singhg45/ 

[tanay bose]

I think Hongkong orchid but not sure about sterile hybrid though many plants have sterile hybrids

Tanay

--

Tanay Bose

Research Assistant & Teaching Assistant.
Department of Botany.
University of British Columbia .
3529-6270 University Blvd.
Vancouver, B.C. V6T 1Z4 (Canada)
Phone: 778-323-4036 (Mobile)

            604-822-2019 (Lab)

ta...@interchange.ubc.ca

[Gurcharan Singh]

Yes B. x blakeana, 3 long stamens and two short stamens.

-- 
Dr. Gurcharan Singh
Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297  Mob: 9810359089
http://people.du.ac.in/~singhg45/ 

[Kenneth Greby]

This is B. purpurea. (Photo should probably be renamed to avoid confusion with B. x blakeana of same photo name).

Regards--
Ken.

---

From: arvind kadus <agasti...@yahoo.co.in>
To: indian...@googlegroups.com
Cc: ajinkya gadave <ajinky...@gmail.com>; dinesh valke <dinesh...@gmail.com>
Sent: Tue, September 21, 2010 8:44:13 AM
Subject: [efloraofindia:47816] Bauhinia for ID AK

[Dinesh Valke]

... agreeing with Ken on this Bauhonia veriagata5A.JPG being Bauhinia purpurea.

Regards.

[Gurcharan Singh]

Enlarged central portion of Bauhonia variegata5A.jpg to clearly show three long and two short stamens, characteristic of B. x blakeana

-- 
Dr. Gurcharan Singh
Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297  Mob: 9810359089
http://people.du.ac.in/~singhg45/ 

[Kenneth Greby]

Thanks for the enlargement, Dr. Singh. I concur.

Regards--
Ken.

---

From: Gurcharan Singh <sing...@gmail.com>
To: Dinesh Valke <dinesh...@gmail.com>
Cc: Kenneth Greby <fst...@yahoo.com>; arvind kadus <agasti...@yahoo.co.in>; indian...@googlegroups.com; ajinkya gadave <ajinky...@gmail.com>
Sent: Wed, September 22, 2010 9:40:17 AM
Subject: Re: [efloraofindia:47988] Bauhinia for ID AK

[Padmini Raghavan]

Dr. Mahadeshwaraswamy had also mentioned  a difference in the cut section of the buds;

triangular in one and circular in the other.

 Rgds,

Padmini.