Cycas zeylanica from Lal Bagh Bangalore-GS04022022-1

[Gurcharan Singh]

Cycas zeylanica (J. Schust.) A. Lindstrom & K.D. Hill, Novon 12(2): 238–239 (2002)

Syn: Cycas rumphii subsp. zeylanica J. Schust.

        Cycas rumphii Auct Plur,; Trimen 1898; Rendle 1900, Raizada & Sahni 

       1960

The species as often gone in Indian treatments under the name C. rumphii, which does not occur in India; It has also been confused with C. circinalis and C. indica. The three can be distinguished as under:

1. C. circinalis: Seed lacking spongy endotesta; Megasporophyll 20-35 cm long, 

                         apical spine of megasporophyll distinctly different from lateral                               spines, 14-34 mm long, lateral spines 10-28, pungent, 1-4 mm l                           ong. ovules 4-14.

2. C. indica: Seed lacking spongy endotesta; Mrgasporophyll 18 cm long, apical                            spine of megasporophyll not distinctly different from lateral

                          spines, 1–3 mm long, lateral spines less than 10, 2 mm long.

C. C. zeylanica: Seed with spongy endotesta; Megasporophyll 17-30 cm long,                              apical apical spine 40-60 mm long, 6-12 lateral bumps or                                      spines less than 2 mm long; 0vules 2-4.

Photographed from Lal Bagh, Bangalore, 29-9-2015

Dr. Gurcharan Singh

Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.

https://www.gurcharanfamily.com/

[Gurcharan Singh]

Here is again with better formatting, another image

Cycas zeylanica (J. Schust.) A. Lindstrom & K.D. Hill, Novon 12(2): 238–239 (2002)

Syn: Cycas rumphii subsp. zeylanica J. Schust.

        Cycas rumphii Auct Plur,; Trimen 1898; Rendle 1900, Raizada & Sahni 

       1960

The species has often gone in Indian treatments under the name C. rumphii, which does not occur in India; It has also been confused with C. circinalis and C. indica. The three can be distinguished as under:

1. C. circinalis: Seed lacking spongy endotesta; Megasporophyll 20-35 cm long, apical spine of megasporophyll distinctly different

                       from lateral spines, 14-34 mm long, lateral spines 10-28, pungent, 1-4 mm long. ovules 4-14.

2. C. indica: Seed lacking spongy endotesta; Mrgasporophyll 18 cm long, apical spine of megasporophyll not distinctly different from                               lateral spines, 1–3 mm long, lateral spines less than 10, 2 mm long.

C. C. zeylanica: Seed with spongy endotesta; Megasporophyll 17-30 cm long, apical apical spine 40-60 mm long, 6-12 lateral bumps or                                      spines less than 2 mm long; 0vules 2-4.

Photographed from Lal Bagh, Bangalore, 29-9-2015

Dr. Gurcharan Singh

Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.

https://www.gurcharanfamily.com/

[Gurcharan Singh]

one more image

Dr. Gurcharan Singh

Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.

https://www.gurcharanfamily.com/

[Gurcharan Singh]

[Gurcharan Singh]

one more image

Dr. Gurcharan Singh

Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.

https://www.gurcharanfamily.com/

[J.M. Garg]

Thanks, Singh ji

--
With regards,
J. M. Garg

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[J.M. Garg]

Thanks, Singh ji

--
With regards,
J. M. Garg

---------- Forwarded message ---------
From: Gurcharan Singh <sing...@gmail.com>
Date: Fri, 4 Feb, 2022, 8:48 pm
Subject: [efloraofindia:414440] Re: Cycas zeylanica from Lal Bagh Bangalore-GS04022022-1
To: efloraofindia <indian...@googlegroups.com>

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[Gurcharan Singh]

Thanks Garg ji.