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[jeff 1]

Bonjour

I have some problem with this new heliamphora , on the morphological caracters.

very close to H. elongata ,  for me the nectar spoon are the same  when we  see  the pictures  !!  

can you explain the real difference between  H.elongata and H.arenicola ?

have you imagined just an ecotype   , with a relation to the substrat ?

jeff

Edited by jeff 1, 16 January 2012 - 10:13 AM.

[amphirion]

from what i understand arenicola is a sand dweller, and prefers sandy substrate as opposed to growing on vegetative/organic substrate.

also arenicola, although exposed to full sun, maintains a rather green/yellow coloration, with red only occurring at the nectar spoon, where as elongata can potentially be completely red.


biggest difference between the two is their flower morphology.

       arenicola:    elongata:
max # of flowers           > 4     > 5
pedical length > 4 cm            > 3,5 cm
stamen #        > 25            > 20
bracts        ovate/ciliate margins          ovate/ avec filiform appendage
stamen filaments 3 cm 5 cm

etc, etc, etc. hope that helps.
info taken from McPhereson's Sarraceniaceae of SA.

Edited by amphirion, 17 January 2012 - 19:04 PM.