Thanks Sir for Sharing pics and detailed characters of Bauhinea

On Sun, Dec 4, 2011 at 11:43 PM, Gurcharan Singh <[email protected]> wrote:
> Bauhinea x blakeana Dunn, J. Bot. 46:325. 1908
>
> Common name: Hong Kong orchidtree
>
> A possible hybrid  B. variegata × B. purpurea
>
> Evergreen tree up to 13 m tall, leaves 8-10 cm long, 12-18 cm broad,  cleft
> 1/4-1/3; flowers 12-15 cm across, fragrant, in long racemes, appearing with
> leaves; petals broad, overlapping, obovate or elliptic, rose-purple with
> whitish veins; stamens 5; pod not produced.
>
> Photographed from Herbal Garden, Punjabi Bagh, New Delhi on December 1
>
> The closely similar species can be separated as under:
>
>
> 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 12-18 cm across, cleft 1/4-1/3                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/
>



-- 
Regards

Dr Balkar Singh
Head, Deptt. of Botany and Biotechnology
Arya P G College, Panipat
Haryana-132103
09416262964

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