Month: October 2011 (Page 5 of 6)

Seed of the Week: Mimosa or Silktree

Our seeds from last week came from the mimosa or silktree, Albizia julibrissin.

Thanks to my cousin Karen Gibson, we have some great photographs of the mimosa tree.

Mimosas are small tree. This one is covered with the seed pods that yield the seeds.

Here’s a closer view of the seed pods.

As you can see, the seeds are smooth and shiny.

You might wonder why people would want to grow this tree that was originally from Asia.

It is because at other times of the year the tree looks like this.

The flowers are a lovely, delicate pink.

The flowers have a scent, especially at night. They attract night-flying moths.

Mimosa trees grow throughout the South and up the East Coast, into New England.

Have you seen a mimosa tree?

Karen, thank you very much for sharing your photographs and your seeds. You can see more about Karen at her blog, Musings, Mischief and Mayhem.

The Draconid Meteor Shower

The Draconid Meteor shower is due Saturday October 8, 2011, right in time for World Space Week. In addition, Saturday is also International Observe the Moon Night. Sounds like perfect reasons to go take a look outside at night.

This video from NASA (has an ad) will explain more.

If you miss the Draconid shower or it doesn’t turn out to be much of a show, try the Orionid meteor shower which is supposed to peak in the early morning of October 20 and 21, 2011. Unfortunately, the brightness of the moon may interfere.

Tips:
1. Try to find a place that is dark for best viewing. Porch and street lights can fade out the meteors.
2. Remind your children there may be several minutes between sightings. In the wee hours of the morning it can be hard to be patient.
3. Blankets and lawn chairs that allow for viewing in a prone position help prevent neck strain and keep chilly viewers warm.

More information at EarthSky

Leave us a comment and let us know what you see.

Photograph from NASA by Vincent Jacques

Bug of the Week: Sap Beetles

Lately we’ve had a couple of good wind storms that have knocked the last few grapefruit off the tree.

Taking advantage of the damaged and rotting fruit are some tiny beetles.

The first thing you notice about these beetles is that they tend to shun the light.

As soon as I opened the fruit, the beetles began to run. I got a lot of photographs of the bottoms of beetles disappearing out of view.

Called sap beetles, or sometimes picnic beetles, they feed inside spoiled, rotting fruit.

There goes one now. You might also notice that its hardened top wings, called elytra, are shorter than its abdomen. Also notice the nobs on the ends of the antennae. Those are characteristic of Nitidulidae, the sap beetle family.

This fruit contained two different kinds.

Can you see the similarities between the two different types of beetles?

As scavengers, sap beetles are part of nature’s clean up crew.

Have you ever seen sap beetles in fruit you have thrown in the compost heap?

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