Inside a rosehip

Images made through a microscope. All subject types.

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Charles Krebs
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Joined: Tue Aug 01, 2006 8:02 pm
Location: Issaquah, WA USA
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Inside a rosehip

Post by Charles Krebs »

I've long wanted a 2X for my MM-11 setup since 4X/5X was often too tight for a good "overall". Came across a good price on a USMC 2X, so I bought it. One of my first subjects was this rosehip. This was the first time I ever opened one and had a peek inside. Interesting.

USMC 2X
Image

Olympus 4X
Image

Olympus 10X
Image

grgh
Posts: 353
Joined: Sat Mar 09, 2013 4:55 am
Location: Lancashire. UK

Re: Inside a rosehip

Post by grgh »

Lovely images, I cannot find any critters in there either?
That time of year when all seems to be elusive.
used to do astronomy.
and photography.
Zeiss Universal Phase contrast.
Zeiss PMII

Sumguy01
Posts: 1609
Joined: Mon Jan 28, 2013 11:05 pm
Location: Ketchikan Alaska USA

Re: Inside a rosehip

Post by Sumguy01 »

=D> Very nice.
Thanks for sharing.

micro_pix
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Joined: Fri May 11, 2012 12:05 pm
Location: Southampton, Hampshire, UK

Re: Inside a rosehip

Post by micro_pix »

Excellent! Where I grew up the kids used to open these up and use the hairy seeds as an alternative to the “itching powder” that was sold at the local joke shop. I think the hairs are an irritant and if you don’t de-seed them before eating they can have an unpleasant effect, I believe that they are called “butt scratchers” in France.

ldflan
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Joined: Sat Mar 11, 2017 5:05 pm
Location: Issaquah, WA

Re: Inside a rosehip

Post by ldflan »

The hairs themselves are quite interesting, and seemingly have either a central channel or (as I think) they are folded around to form a kind of spiked tube, sort of like a blade of grass.

The five-sided folicular organ at the base of the hairs and the structure of the hairs where they emerge from the folicle is also fascinating (pics in link below.)

If you section the hip tissue, you will find the innermost tissue layer growing hairs and supporting achene development is heavily laden with calcium oxalate crystals. Meanwhile, if you can get the achene sectioned, you will find CaOx of completely different morphology proliferating in the endosperm.

Hip hairs and follicles images:

https://www.yogile.com/u1j8gkd04yl#51m

Hip and achene sections:

https://www.yogile.com/kqfz89msx60#21m

I'd like to know what the hairs are made of. A friend who has studied them a long time says they are a silicate material, but he can't find the reference. I suspect it's more like gypsum. Anybody know?

Leonard

LouiseScot
Posts: 13
Joined: Thu Jul 30, 2020 8:43 am
Location: Scotland

Re: Inside a rosehip

Post by LouiseScot »

Lovely images! I like how the hairs in the 10x image are almost transparent, or appear to be.
Louise

Saul
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Joined: Mon Jan 31, 2011 11:59 am
Location: Naperville, IL USA
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Re: Inside a rosehip

Post by Saul »

Beautiful picture !
Is USMC2x better than Mitutoyo 2x ?
Saul
μ-stuff

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