I. setosa

Yes!!! My Brazilian is starting to make thorns and buds!

This message was edited Jan 16, 2007 1:52 PM

This plant started getting black spots on the leaves when I moved it to the greenhouse. Maybe it doesn't like all the humidity?

This plant seems like a magnet for the few plant eating bugs in my greenhouse. They are ignoring all the other plants and ganging up on this one.

Looks like it is making a bud, but it doesn't look like the buds in the Plantfiles about this species.
Beth

Beth, I just pulled up a website, think it was plant virus online, that states setosa is
very susceptible to a number of sweet potato virus's. Just google ipomoea setosa virus,
should bring up the website.

Interesting! Looks like setosa is susceptible to:
Beet curly top hybrigeminivirus
Sweet potato caulimovirus
Sweet potato feathery mottle potyvirus
Sweet potato latent (?) potyvirus
Sweet potato (?) phytoreovirus
Sweet potato ringspot (?) nepovirus
Sweet potato sunken vein (?) closterovirus
Sweet potato vein mosaic (?) potyvirus

When I first put this out in the greenhouse, I had the temps at 60-70 degrees. It didn't look happy. Now I have upped the temps to 70-80 degrees and it is starting to flourish.
Beth

This message was edited Feb 5, 2007 11:33 AM

Hopefully the virus won't be a factor if it is indeed a virus. Some
plants bloom and set seed even if they are virused. The fact yours is flourishing is a
good sign. Can't wait to see the blooms.

Jackie

Beth - Your observation on the sepals of the bud are legitimate...the plant you have pictured looks alot closer to either Ipomoea alba or Ipomoea turbinata to me at this point...

Ipomoea setosa buds have a natural yeast coating that usually protects them from pathogens attacking the flowerbuds...

I'd be interested to see some more photos of the leaves,stems and any other buds and did you happen to take any photos of the cotyledons(?)...

TTY,...

Ron

Ron,

I've seen the soft "thorns" on Ipomoea turbinata plants, but have not seen them on Ipomoea alba. Are they also found on forms of I. alba?

Arlan

Arlan - The soft protuberances on the plant stems are most usually present on Ipomoea turbinata,but are sometimes present on Ipomoea alba > usually along the base of the petiole and to a lesser developed degree on other parts...but you are right that the protuberances are much more prevalent on Ipomoea turbinata and much less often on Ipomoea alba...

TTY,...

Ron

The cotyledons were HUGE, the biggest I had ever seen...but I neglected to photograph them. I do still have some of the seeds and will photograph them tonight.
Beth

Beth - if you photograph the seeds >any closeups of the hilium area would be helpful...also do you have any definite Ipomoea setosa seeds to compare the seeds in question to (?)...

TTY,...

Ron

Here are the seeds that this plant grew from.

Here is another strange bud the plant is making.

baolvera - The plant and seeds look like the dark seeded form of Ipomoea alba...this dark seeded form has demonstrated more spine-like protuberances than the light seeded form...

TTY,...

Ron

I love a mystery! When this plant finally blooms we may have answers....and I learned that setosa isn't the only ipomoea that has spines.
Beth

Ipomoea tricolor will sometimes produce 'spine-like' protuberances similar to the Ipomoea alba but usually only towards the base of the petiole and on large plants...

I don't think that the plant in question here is Ipomoea tricolor,just mentioning that I've seen similar structures on the I.tricolors albeit in a somewhat attenuated form...

TTY,...

Ron