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

21 views
Skip to first unread message

surajit koley

unread,
May 18, 2021, 10:17:41 AMMay 18
to efloraofindia
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
Question_set2.jpg
Question_set1.jpg
leaves.jpg
leaves2.jpg

surajit koley

unread,
May 22, 2021, 3:15:34 AMMay 22
to efloraofindia
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

unread,
May 28, 2021, 11:58:51 AMMay 28
to efloraofindia, surajitkoley
Hi, Surajit ji,
Could you finally reach the id as per details at 18/05/2021 : surajit : Agave in "Botany of Bihar and Orissa" ?

--
You received this message because you are subscribed to the Google Groups "efloraofindia" group.
To unsubscribe from this group and stop receiving emails from it, send an email to indiantreepi...@googlegroups.com.
To view this discussion on the web, visit https://groups.google.com/d/msgid/indiantreepix/CAMV_mc00L%2BDWkfNgvSqgRwnfcVwThS1FP_QSapiZH4_FVyW%3Dzg%40mail.gmail.com.


--
With regards,
J.M.Garg

surajit koley

unread,
May 28, 2021, 12:25:02 PMMay 28
to J.M. Garg, efloraofindia
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

unread,
May 28, 2021, 12:59:15 PMMay 28
to surajit koley, efloraofindia
Thanks a lot, Surajit ji
--
With regards,
J.M.Garg

surajit koley

unread,
May 29, 2021, 11:14:46 AMMay 29
to J.M. Garg, efloraofindia

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

3-chotomous.jpg
pale amber tepals.jpg
thickened_base_and _concave_leaf.jpg
marginal_prickles.jpg

J.M. Garg

unread,
May 29, 2021, 11:25:24 AMMay 29
to surajit koley, efloraofindia
Thanks, Surajit ji
--
With regards,
J.M.Garg

surajit koley

unread,
Jun 7, 2021, 11:09:02 AMJun 7
to J.M. Garg, efloraofindia
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:
Reply all
Reply to author
Forward
0 new messages