Re: Request to add Croton gibsonianus is the eflora website

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Maniruddin Dhabak

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Nov 17, 2021, 6:34:20 AM11/17/21
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Female flower

On Wed, Nov 17, 2021 at 4:50 PM Maniruddin Dhabak <manirudd...@gmail.com> wrote:


On Wed, Nov 17, 2021 at 4:50 PM Maniruddin Dhabak <manirudd...@gmail.com> wrote:


On Wed, Nov 17, 2021 at 4:48 PM Maniruddin Dhabak <manirudd...@gmail.com> wrote:
Sharing other photographs.

On Wed, Nov 17, 2021 at 4:40 PM Maniruddin Dhabak <manirudd...@gmail.com> wrote:
Dear eFlora member, 

Sharing photographs of Croton gibsonianus, an interesting tree species for incorporation in the website.

This is so far the only endemic tree of northern Western Ghats and Maharashtra which we rediscovered from Harishchandragad after 170 years! The beautiful tree grows among semi- evergreen hilltop patches at Harishchandragad along water streams at 1200 m. Sharing description,  more details and attaching photos below.

We found that what all previous authors treated as Croton gibsonianus is actually a hitherto undescribed species now named as Croton chakrabartyi Dhabak & Nandikar. Will share that in separate email.

Description - A monoecious tree, up to 6 m high. Leaves alternate, distichous, lamina ovate, margin entire, with two stipitate glands at base, characteristically tri-nerved (actinodromous) at the base. Inflorescence terminal racemes of ca. 5 cm; male flowers: sepals 5, ovate; petals 5, reflexed, membranous, cream to yellowish; stamens 15–21, in two whorls; nectaries 5, orange-red, cordate; female flowers: sepals accrescent; petals rudimentary; ovary ovoid; style 3, inconspicuous; stigma linear, stigmatic arm 3, bifid twice. Capsule greenish yellow, tricoccus, ovoid to subglobose; seeds 3, 1 per locule, ellipsoid.

Date/Time-  16/10/2021

Location- Place, Altitude, GPS- Harishchandragad

Habitat- Garden/ Urban/ Wild/ Type- Wild

Plant Habit- Tree/ Shrub/ Climber/ Herb- Tree

Height/Length- up to 6 meter

Leaves Type/ Shape/ Size- Bifarious, ovate,

Inflorescence Type/ Size- Terminal raceme

Flowers Size/ Colour/ Calyx/ Bracts-  Cream to Yellowish

Fruits Type/ Shape/ Size Seeds- Capsule

Other Information like Fragrance, Pollinator, Uses etc.-


--
Regards, 
Maniruddin Dhabak
Research fellow
Naoroji Godrej Centre for Plant Research (NGCPR) 
Shirwal, Satara, Maharashtra



--
Regards, 
Maniruddin Dhabak
Research fellow
Naoroji Godrej Centre for Plant Research (NGCPR) 
Shirwal, Satara, Maharashtra



--
Regards, 
Maniruddin Dhabak
Research fellow
Naoroji Godrej Centre for Plant Research (NGCPR) 
Shirwal, Satara, Maharashtra



--
Regards, 
Maniruddin Dhabak
Research fellow
Naoroji Godrej Centre for Plant Research (NGCPR) 
Shirwal, Satara, Maharashtra



--
Regards, 
Maniruddin Dhabak
Research fellow
Naoroji Godrej Centre for Plant Research (NGCPR) 
Shirwal, Satara, Maharashtra

Croton gibsonianus female flower.JPG

Maniruddin Dhabak

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Nov 17, 2021, 6:34:20 AM11/17/21
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Croton gibsonianus Capsule.jpg

Maniruddin Dhabak

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Nov 17, 2021, 6:34:22 AM11/17/21
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Croton gibsonianus male flower.jpg
Croton gibsonianus Leaf.jpg

Maniruddin Dhabak

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Nov 17, 2021, 6:34:23 AM11/17/21
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Croton gibsonianus branch.JPG

Maniruddin Dhabak

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Nov 17, 2021, 6:34:23 AM11/17/21
to indian...@googlegroups.com
Sharing other photographs.

On Wed, Nov 17, 2021 at 4:40 PM Maniruddin Dhabak <manirudd...@gmail.com> wrote:
Croton gibsonianus flowering branch.JPG

Maniruddin Dhabak

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Nov 17, 2021, 6:34:36 AM11/17/21
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Croton gibsonianus Habit.jpg

Nidhan Singh

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Nov 19, 2021, 7:01:03 PM11/19/21
to indiantreepix
Very beautiful pictures..
Thanks for sharing..!!

Gurcharan Singh

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Nov 21, 2021, 8:59:45 AM11/21/21
to efloraofindia
Good series of pictures. Thanks for sharing.

J.M. Garg

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Nov 27, 2021, 5:34:36 AM11/27/21
to efloraofindia, manirudd...@gmail.com
Thanks a lot, Maniruddin ji.

---------- Forwarded message ---------
From: Maniruddin Dhabak <manirudd...@gmail.com>
Date: Sat, 27 Nov 2021 at 15:57
Subject: Re: [efloraofindia:406871] Request to add Croton gibsonianus is the eflora website
To: J.M. Garg <jmg...@gmail.com>


Thank you so much J.M. Garg Ji for adding the images. 
Here are the Images and description for later species Croton chakrabartyi Dhabak &  Nandikar. The species is named in the honour of Dr. Tapas Chakrabarty (Ex. Scientist, BSI) for his valuable contribution in the Indian Croton.

Description - A monoecious shrub, up to 2 m high; branchlets angular. Leave alternate, spirally arranged, rarely sub opposite, up to 4.5 cm long, lamina elliptic-oblong, margin serrate, venation penninerved. Inflorescence terminal raceme up to 30 cm long; Male flowers: often 1– 3 per node; sepals 5, ovate-elliptic to oblong; petals 5, recurved; stamens 9–11; glands 5, oblate; Female flowers: solitary to few, at the proximal end of the raceme; petals 5, much reduced to tuft of hairs; ovary globose; style 3, stigma linear; stigmatic arm 3, bifid. Capsule greyish brown, tricoccus, without accrescent sepals; seeds 3, each per locule.

Date/Time-  17/01/2021

Location- Place, Altitude, GPS-  Utara Kannada, Sirsi to kumta road

Habitat- Garden/ Urban/ Wild/ Type- Wild

Plant Habit- Tree/ Shrub/ Climber/ Herb-  Shrub

Height/Length- 2 m

Leaves Type/ Shape/ Size- Elliptic - oblong

Inflorescence Type/ Size- Terminal racemiform cyme

Flowers Size/ Colour/ Calyx/ Bracts-  White

Fruits Type/ Shape/ Size Seeds- Capsule

Other Information like Fragrance, Pollinator, Uses etc.-



On Sat, Nov 27, 2021 at 12:04 PM J.M. Garg <jmg...@gmail.com> wrote:
Thanks, Maniruddin ji, for the wonderful addition.

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--
With regards,
J.M.Garg


--
Regards, 
Maniruddin Dhabak
Research fellow
Naoroji Godrej Centre for Plant Research (NGCPR) 
Shirwal, Satara, Maharashtra



--
With regards,
J.M.Garg
Croton chakrabartyi female flower.jpg
Croton chakrabartyi Capsule.jpg

J.M. Garg

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Nov 27, 2021, 5:35:06 AM11/27/21
to efloraofindia, manirudd...@gmail.com
Thanks a lot, Maniruddin ji.

---------- Forwarded message ---------
From: Maniruddin Dhabak <manirudd...@gmail.com>
Date: Sat, 27 Nov 2021 at 15:57
Subject: Re: [efloraofindia:406871] Request to add Croton gibsonianus is the eflora website
To: J.M. Garg <jmg...@gmail.com>


Thank you so much J.M. Garg Ji for adding the images. 
Here are the Images and description for later species Croton chakrabartyi Dhabak &  Nandikar. The species is named in the honour of Dr. Tapas Chakrabarty (Ex. Scientist, BSI) for his valuable contribution in the Indian Croton.

Description - A monoecious shrub, up to 2 m high; branchlets angular. Leave alternate, spirally arranged, rarely sub opposite, up to 4.5 cm long, lamina elliptic-oblong, margin serrate, venation penninerved. Inflorescence terminal raceme up to 30 cm long; Male flowers: often 1– 3 per node; sepals 5, ovate-elliptic to oblong; petals 5, recurved; stamens 9–11; glands 5, oblate; Female flowers: solitary to few, at the proximal end of the raceme; petals 5, much reduced to tuft of hairs; ovary globose; style 3, stigma linear; stigmatic arm 3, bifid. Capsule greyish brown, tricoccus, without accrescent sepals; seeds 3, each per locule.

Date/Time-  17/01/2021

Location- Place, Altitude, GPS-  Utara Kannada, Sirsi to kumta road

Habitat- Garden/ Urban/ Wild/ Type- Wild

Plant Habit- Tree/ Shrub/ Climber/ Herb-  Shrub

Height/Length- 2 m

Leaves Type/ Shape/ Size- Elliptic - oblong

Inflorescence Type/ Size- Terminal racemiform cyme

Flowers Size/ Colour/ Calyx/ Bracts-  White

Fruits Type/ Shape/ Size Seeds- Capsule

Other Information like Fragrance, Pollinator, Uses etc.-


On Sat, Nov 27, 2021 at 12:04 PM J.M. Garg <jmg...@gmail.com> wrote:
Thanks, Maniruddin ji, for the wonderful addition.

---------- Forwarded message ---------
From: Maniruddin Dhabak <manirudd...@gmail.com>
Date: Wed, 17 Nov 2021 at 17:04
Subject: [efloraofindia:406871] Request to add Croton gibsonianus is the eflora website
To: <indian...@googlegroups.com>


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--
With regards,
J.M.Garg


--
Regards, 
Maniruddin Dhabak
Research fellow
Naoroji Godrej Centre for Plant Research (NGCPR) 
Shirwal, Satara, Maharashtra



--
With regards,
J.M.Garg
Croton chakrabartyi leaf.jpg
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