18/05/2021 : surajit : Please Help Me Understand Agave

[surajit koley]

I have a few questions, typed on the attached plates (two) of an Agave sp.

I have confusions over the nature/characters of those "leaves", "spines" and "prickles".

Please, help me understand those characters.

I agree that image quality is poor, but I have no alternative. In addition to those two plates I attach here two more photographs of the leaves of the concerned species.

Thank you

Regards

surajit

life is short

time is running out

don't try to know everything

utilize what you already know

[surajit koley]

Please, ignore this thread containing sets of questions. Because :- the would be answers are no more relevant for the species I was looking for.

I apologize for unnecessarily drawing your attention.

Thank you

Regards

surajit

life is short

time is running out

don't try to know everything

utilize what you already know

[J.M. Garg]

Hi, Surajit ji,

Could you finally reach the id as per details at 18/05/2021 : surajit : Agave in "Botany of Bihar and Orissa" ?

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With regards,
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[surajit koley]

Sir ji, I couldn't give time to this one!

I suspect it is none of A. cantula Roxb., A. americana L., A. vivipara L. or A. angustifolia Haw.

It is probably Agave vera-cruz Miller, syn A. cantula Beng. Pl. (now what "Beng. Pl." was meant by Haines?). But I need time to check that thoroughly.

I don't have money to replace my keypad right now

Specially, key 'B', 'N' and 'Y' refuse to feel my touch!!!

[J.M. Garg]

Thanks a lot, Surajit ji

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With regards,
J.M.Garg

[surajit koley]

Please check - https://groups.google.com/g/indiantreepix/c/6lLX9xqb2gE/m/X-2bqLLNAQAJ

Probability of Agave angustifolia Haw. var. angustifolia :-

1. leaves are not stiff even rosette (as in KEW and eFI) = probability NIL
2. tepals different from my species, as in GBIF herb. = probability NIL
3. tepals similar, but tube longer; as in another GBIF = some probability
4. marginal prickles often sharply recurved (Haines) as in above GBIF = probability again NIL
5. flowers greenish-yellow (Haines) = probability NIL

Agave sisalana Perrine :-

1. leaves different as in KEW (outer leaves at right angle in this species) = NIL
2. inflorescence not 3-chotomous in KEW  (3-chotomous in my species)  = NIL

Agave cantula Roxb.

1. no acicular spine, neither conspicuous prickles in my species = NIL
2. inflorescence branches neither slender nor flexuous = NIL

Agave americana L. :-

1. no reflexed prickles in my species = NIL
2. neck of leaves not constricted in my species = NIL

Agave vera-cruz Mill. :-

1. everything looks similar to table https://groups.google.com/g/indiantreepix/c/6lLX9xqb2gE/m/RGU3AFNLBQAJ except marginal prickles (which are similar to A. sisalana)
2. tepals linear-lanceolate, pale amber tint

So, I think this species is Agave vera-cruz Miller.

Thank you

With regards

surajit koley

[J.M. Garg]

Thanks, Surajit ji

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With regards,
J.M.Garg

[surajit koley]

Sir,

Leaf type, leaf orientation, inflorescence character, flower colour are relevant only when leaf margin bears conspicuous prickles. My earlier ID was wrong, it is Agave sisalana, as in many other in the group site,

Thank you

With regards

surajit koley

On Fri, 28 May 2021 at 22:29, J.M. Garg <jmg...@gmail.com> wrote: