| Dear Steve and All,
Aloha.
I have not done it myself, but, Peter Boyce told me that certain clumping species of Schismatoglottis can be propagated by leaf cuttings. I have no idea if this extends to the whole genus, but, perhaps Peter will respond. This conversation arose due to the habit of certain Schismatoglottis that pup and the mother plant dies. While I am on this forum, I'd love to see more species of Schismatoglottis in cultivation. It is like Philodendron and Anthurium...large genera, but relatively few species in cultivation. Unfortunately, this is not likely to change in the near future.
Aloha,
Leland --- On Wed, 6/16/10, Tony Avent <tony@plantdelights.com> wrote:
From: Tony Avent <tony@plantdelights.com>
Subject: Re: [Aroid-l] Aroid leaf regeneration??
To: "'Discussion of aroids'" <aroid-l@www.gizmoworks.com>
Date: Wednesday, June 16, 2010, 10:52 AM
Steve:
We detailed our research on rooting amorphophallus from leaf
cuttings in an article published in Aroideana, Volume 30, 2007. Pinellia can
also be rooted, as can some tropical arisaema.
Tony Avent
Plant Delights Nursery
@
Juniper Level Botanic Garden
9241 Sauls Road
Raleigh, North
Carolina 27603 USA
Minimum Winter Temps 0-5 F
Maximum Summer
Temps 95-105F
USDA Hardiness Zone 7b
email tony@plantdelights.com
website
http://www.plantdelights.com
phone
919 772-4794
fax 919 772-4752
"I consider every plant hardy until I
have killed it myself...at least three times" - Avent
I am again doing some digging as a result of an
ongoing discussion with a group of growers. It is the opinion of some that
aroids can be induced to generate a totally new plant by placing growth hormone
on the petiole of a leaf. I have read all I can find and do not believe
this information to be accurate.
From the text of The
Genera of Araceae it appears the only two aroids that are capable of the
regeneration of a new plant from a leaf are Zamioculcas zamiifolia and
Gonotapus boivinii. This unique ability is the result of a bulblet
being formed at the juncture of the blade and the petiole and appears to happen
as a survival form during hostile seasons of the year. From
TGOA: "Regeneration of tubers, leaves and roots from leaf segments is well
known in Zamioculcas zamiifolia and Gonotapus boivinii (Engler 1881, Schubert
1913, Cutter 1962). Isolated entire leaflets of Zamioculcas and Gonotapus
spontaneously develop a basal swelling, followed by the formation of roots and
up to 3 buds, over a 6-9 week period for Zamioculcas. Leaf regeneration in
Gonotapus is more rapid. The results of experimental manipulation of isolated
leaflets grown in culture show that any part of the compound leaf is capable of
regeneration".O ne gentleman appears to be insisting any
of the other four Gonotapus species is capable of the same thing. I
have read and reread the section in TGOA on this subject and there is a mention
of a few other aroids that produce bulblets at the juncture of the leaf and
petiole but other Gonotapus are not mentioned. More from
TGOA:
"Leaf tubercles and regeneration. Tubercles regularly
develop at the juncture of leaflet and petiole in Pinellia fernata (Hansen 1881,
Linsbauer 1934, Troll 1939) at the apical end of petiole in Typhonium bulbiferum
(Sriboonma et al. 1994) and at the first and second order divisions of the leaf
of Amorphophallus bulbifer (Troll 1939). Tubercles in Pinella may also
form spontaneously along the petioles or can be induced at the basal part by
cutting into segments (Linsbauer 1934) Tubercles may develop in Typhonium
violifolium at the leaf apex, pale apex and the apex of this sheath
(sriboonma et al, 1994)."
Do any of
the other four species of Gonotapus actually do leaf regeneration?
And if not, can any of our scientists give me a source of documentation as
to why leaf regeneration does not happen in aroids? If any grower
has obsserved this behavior, can you document it?
I am not trying to "win
an argument, I just want to make sure I understand this growth form as it
relates to aroids.
Thanks,
Steve
www.ExoticRainforest.com
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