Re: CULT: Pineappling
From: John I Jones <jijones@ix.netcom.com>
Carryl Meyer wrote:
>
> Pineappling of the leaves of plants occurs when the area between the
> veins of the leaf grows faster than the veins, giving a 'ripple' or'
> zig-zag up and down' appearance to the leaf.
This is not pineappling as it is used with irises. Pineappling is a condition
in which a rhizome greatly enlargens and sends up many distorted and dwarfed
stalks that, if they bloom, often have distorted flowers. Pleated foliage may
also occur as an adjunct to this phenomonon.
Some time ago Bill Shear posted the following in regards to this:
> The wierd increase may be a case of what botanists call fasciation. It
> occurs when a normal growing point (apical meristem) becomes asymmetrical
> because of damage, or for some reason is injured and splits into many new
> growing points. Fasciated cacti are popular amongst those who like such
> things and are often called "crested". I've seen this a few times in
> irises.
>
> There is a similar phenomonon known from woody plants, mostly trees, called
> "witches broom." This is actually a genetic change which results in slow,
> congested growth.
> Since the change is genetic, it can be permanent and many dwarf conifers
> are selections taken first as cuttings from "witches brooms."
John | "There be dragons here"
| Annotation used by ancient cartographers
| to indicate the edge of the known world.
John Jones
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