Agave vera-cruz Mill., Gard. Dict. ed. 8 7 1768. (syn: Agave breviscapa A.Berger ex RosterAgave cyanophylla Jacobi; Agave haworthiana M.Roem.; Agave lepida D.Dietr.; Agave lurida Aiton; Agave magni Desf.; Agave manguai Desf.; Agave mexicana Lam.; Agave polyphylla K.Koch; Agave vera-crucis Haw.; Agave vernae A.Berger);
Mexico (Veracruz, Oaxaca): Mexico Gulf, Mexico Southwest; Introduced into: Ascension, East Himalaya, India, Pakistan, Peru, Réunion, Sri Lanka, St.Helena, Thailand as per POWO;
Ascension; East Himalaya; India; Mexico Gulf; Mexico Southwest; Pakistan; Runion; Sri Lanka; St.Helena; Thailand as per Catalogue of Life;

Stem reduced, covered with leaf bases. Leaves forming a lax rosette, arching upwards, the ends drooping, 1.5-2 m, linear-oblong, widest just above the middle, neck hardly constricted; apical spine 1-1.5 cm, almost black; marginal spine broad, spreading or pointing downwards, blackish-brown. Leaves green, often glaucous sometimes with a whitish bloom, shallowly channelled.
(Attributions- Compiled from secondary sources listed in references by Poornima Viswanathan for the Assam Biodiversity Portal project as per India Biodiversity Portal)

18/05/2021 : surajit : Please Help Me Understand Agave: 4 images.
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.

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

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

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.

Please check- efi thread

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 efi thread 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.
4 images.



References: POWO  Catalogue of Life  The Plant List Ver.1.1  WCSP  IPNI  GBIF (High resolution specimens) Flora of Pakistan  FOP illustration Annotated checklist of Flowering plants of Nepal  Flora of Karnataka  India Biodiversity Portal  Purdue University Famine Foods

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