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Name: Tiffany purpleinopp
Opp, AL 🌵🌷⚘🌹🌻 (Zone 8b)
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purpleinopp
May 20, 2017 8:52 AM CST
2 Crassula leaves that failed to separate from each other.
Thumb of 2017-05-20/purpleinopp/8e42fb

What examples of fasciation have you seen on your plants?
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Name: Baja
Baja California (Zone 11b)
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Baja_Costero
May 20, 2017 10:25 AM CST

Moderator

Here are a few plants which spontaneously crested on the patio. All of them have reversions going on. On the Pachypodium seedlings the reversions are growing out underneath the main crests.

Thumb of 2017-05-20/Baja_Costero/3d16e2 Thumb of 2017-05-20/Baja_Costero/786c59

Here is a crested Echeveria and the normal (original) form to compare.

Thumb of 2017-05-20/Baja_Costero/d3297c Thumb of 2017-05-20/Baja_Costero/04ba7c

Tiffany, I think what you're seeing may just be a monstrose plant acting monstrose. Gollums will make some pretty weird looking leaves including fusions, but they're just leaves and end up falling off the plant.
Name: Tiffany purpleinopp
Opp, AL 🌵🌷⚘🌹🌻 (Zone 8b)
Houseplants Organic Gardener Composter Region: Gulf Coast Miniature Gardening Native Plants and Wildflowers
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purpleinopp
May 20, 2017 11:41 AM CST
Fasciation means "to fuse", and I think one could say it is the cause of the abnormalities that can lead to cresting and/or monstrose plants. A single leaf can exhibit fasciation, unless the term is being applied incorrectly:

http://ucanr.edu/blogs/blogcor...
http://msue.anr.msu.edu/news/p...
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Name: Baja
Baja California (Zone 11b)
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Baja_Costero
May 20, 2017 11:49 AM CST

Moderator

Oh I'm sure you're right, I'm no botanist. Just making a distinction between stem and leaf, the former usually being more permanent in the lifespan of the plant. The leaves that are monstrose to begin with tend to vary more than the normal ones, as if they are a bit unstable form-wise. So you might get fusions or oddities. But Gollum does not revert to jade, at least as far as I can tell. In any case, the type of fasciation that I would call cresting (again, no expert) is fundamentally a change in the stem. And when it happens spontaneously it tends to also be unstable, leading to the outgrowth of normal stems.
[Last edited by Baja_Costero - May 20, 2017 12:06 PM (+)]
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Name: Daisy I
Reno, Nv (Zone 6b)
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DaisyI
May 20, 2017 6:17 PM CST
Fasciation happens when the apical meristem at the growth tip suddens elongates. There are also apical meristem tissue at leaf nodes (leaves and branches) and root tips but I think that fasciation has to do with the main growth tip. But I could be wrong. Smiling
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Name: Baja
Baja California (Zone 11b)
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Baja_Costero
May 20, 2017 6:37 PM CST

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That is how I understand things, with much better vocabulary than I have available. Maybe pile onto your list the additional potential site of fasciation on budding inflorescences. Smiling
[Last edited by Baja_Costero - May 21, 2017 10:04 AM (+)]
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Name: Baja
Baja California (Zone 11b)
Cactus and Succulents Seed Starter Foliage Fan Xeriscape Container Gardener Bromeliad
Hummingbirder Native Plants and Wildflowers Garden Photography Region: Mexico Plant Identifier Forum moderator
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Baja_Costero
May 20, 2017 6:43 PM CST

Moderator

Here's a fun one... you will note there are 2 types of Semps in this clump: one that's white in the center with red around the outside (most rosettes), and one with red on the inside and white around the outside (lower right). That one is a crest that I have watched grow wider and wider until it made a ring, with active growth around the periphery rather than at the center.

[Last edited by Baja_Costero - May 20, 2017 6:45 PM (+)]
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Name: Bev
Salem OR (Zone 8a)
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webesemps
May 22, 2017 9:36 AM CST
Following Baja's example, here's a crested one I had,

In early summer:
Thumb of 2017-05-22/webesemps/46adcf

one month later
Thumb of 2017-05-22/webesemps/f814d1

5 months later
Thumb of 2017-05-22/webesemps/d26a9f

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