Showing posts with label Plantago. Show all posts
Showing posts with label Plantago. Show all posts

Monday, August 12, 2013

Microphotography: Portulaca grandiflora

I'm unclear on the specifics of where and how, but the husband, knowing that I've been looking for a microscope for some time, somehow obtained a used one for me. Which is one example of how he's the best husband ever.


The catches -- and of course there are catches -- are:

1) Okay, I don't know the proper names for anything here, but I'm going to call that thing in the middle, with the four things sticking out from it, the microscope's "udder," because that's what it looks like. Each of those barrels on the udder has a different level of magnification (I don't know what levels of magnification, because I cannot decipher what the barrels say), only two of which appear to function.
2) It's a regular, old-school, 1960s-ish microscope, so it wasn't designed with digital photography in mind. If the camera lens is not exactly centered over the eyepiece, the camera doesn't register anything being there at all. Likewise if it isn't precisely the right height above the eyepiece. My hands shake way too much to get pictures by holding the camera in the right spot myself, and although we do have a tripod, the base of the microscope is just large enough to get in the way of the tripod's legs, so I can get within about a centimeter (0.4 in.) of the eyepiece, but then no further. Except! When I took the below pictures, I actually could get the tripod directly over the eyepiece. I just couldn't do it again a few days later when I moved the whole thing outside to try to get a better set of pictures in stronger light, and I don't know why, and the whole thing was very frustrating. Which leads us to the third problem, which is:
3) Even when I do manage to line the camera up, using the tripod, the amount of light coming through the eyepiece is small, so my camera uses long exposure times, which results in blurry pictures, even at its best.
4) And at its worst, the camera autofocus chooses to focus on the eyepiece itself, instead of the image in the eyepiece. Or it focuses on some part of the microscope outside the eyepiece, so I get a perfect shot of the top of the udder but the actual image I'm trying to capture is too fuzzy to make out.

So the point is that there are some problems with this, and you should, consequently, not expect to see a lot of these pictures until such time as I can figure out how to get better ones. And I would love some suggestions from other people, because I know there's got to be someone out there who's taken photographs through a microscope's eyepiece successfully.

Having said all of that, there have been some pretty cool moments with the microscope already, which I will hopefully be able to share with you someday. Portulaca grandiflora seeds, my only successful photos to date, turn out to be much more interesting than the gray, metallic dust they appear to be with the naked eye. For example, I had always imagined them as more or less spherical, since a lot of seeds are, but they turn out to have a specific, weird shape, somewhere between a comma and a nautilus:


At the higher magnification, they also have an unexpected texture, which is probably the coolest and most surprising thing I've seen in weeks. It didn't photograph well, of course:


The pattern is sort of approximately that of a bunch of tiny interlocked cogwheels, covering the whole surface of the seed. Which is even stranger in combination with the overall iridescent metallic gray color. (I now suspect that Portulaca grandiflora are robotic plants.)

I also tried for photos of the pollen, but that went even less well, and wasn't very interesting:


And those are the only actual pictures I'm able to provide to you at this point. Possible coming attractions, if I can figure out how to take the pictures:

A lot of leaves are hairier than I would have guessed. (Pedilanthus being the most surprising.) Though most leaves are disappointingly boring.

The serrated edges on Yucca guatemalensis are a lot less regular in shape and spacing than I expected.

Cryptanthus pollen is even more dull than Portulaca pollen: basically just irregular little white rounded things. At least Portulaca pollen has a color to it.

Ceropegia woodii flowers look exactly the way you would expect them to look, and brought to mind both "eyelashes" and "houseflies." Aeschynanthus speciosus flowers are boring and look just like they do with the naked eye, except bigger. Neofinetia roots didn't do much for me. (Think "styrofoam.") The Euphorbia fungus (yes, I still have Euphorbia fungus) looked exactly like I expected (sort of a creeping white net), and was dull.

Broadleaf plantain (Plantago major) really does have flowers (when you let it bloom), and the flowers are actually sort of pretty. I mean, if they were twenty times bigger, you'd grow the plant as an ornamental: there's a white, fluffy bottlebrush sort of stamen, with lots of white spherical pollen grains, and then the stigmas, or something I take to be the stigmas, are sort of shaped like white tulips with purple stripes down the center of each petal. (Plantago major is high on the list of stuff to get pictures of, whenever I figure out how to do that, but you can get some idea from the picture here at Wikimedia Commons. There must be some natural variation, though, because that's a darker, solid purple than what I was seeing.)

Another high-priority item: Anthurium spadices. It's a little easier for me to believe that those are flowers, now that I've seen them close-up. (I'd link to a photo, but I couldn't find one easily on Google image search.) It should probably be noted that they're still not pretty. At best, interesting.

Spider mites are every bit as horrifying as you'd think they would be, and they will continue to suck sap out of a leaf even after it's been removed from the plant. They also do this weird thing where they either shake their back legs like a dog getting a belly rub, or they rub their rearmost pair of legs together like a person trying to warm their hands. I only saw it do that once, and it was fast. I was so surprised and freaked out by there being, suddenly, movement, that I can't tell you exactly what it was. It also convinced me to throw the leaf in the trash more or less immediately afterward.

I think I've seen spider mite eggs now, though they weren't all the same color, so I'm not 100% on that. (They were all somewhere in the yellow or yellow-orange color range, but the darkness varied a lot, from pale yellow down to almost black.)

Some unknown white thing that was on our lettuce was one of the scariest things I've ever seen. It somehow managed to evoke deep-sea crabs, skeletons, spiders, and ghosts simultaneously, and I'm pretty sure seeing them come into focus in the microscope took a year off my life. The best match I found on-line for them was here, on a forum where they were identified as the shed exoskeletons of a molted aphid here. (The pictures at the link aren't magnified enough to be upsetting, FWIW.) So "skeleton" and "ghost" were actually pretty close. That also explains why they weren't moving.

So the point is, there's a lot of potential for interesting new posts, if only I can figure out how to get the pictures. It's going to take some experimentation, and I only have so much time, so if anybody has any relevant expertise, I'd sure appreciate hearing from you.


Thursday, November 4, 2010

[Exceptionally] Pretty pictures: transmitted light -- Part XXXV

Mostly greens this time around, but they're interesting greens, with fairly distinct textures. But first, an uncompensated product endorsement.

The husband and I finished watching The Wire last night. For those who don't know, The Wire is an HBO series that ran from 2002 to 2008, and it's about, among other things, the drug trade, police department, city government, prisons, and school system of Baltimore, MD. And it's the real Baltimore: filmed on location, with lots of actors who are actually from Baltimore.

It's also the only show I've seen lately that's genuinely suspenseful, the only show that sets up rules about what can and cannot happen in this world and then sticks to them (I'm looking at you, Caprica), the only show with characters who seem like they could be real people and change in ways that real people might change, and some really fascinating things to say about American society, the War on [Some People Who Use] Drugs, politics, being a police officer, redemption (as well as fucking up), and a ton of other stuff.

Except not all boring and shit, like that made it sound.

Also, the realism and occasional bleakness mean that they can make some amazingly funny jokes sometimes. Seriously. You'll die. People have called it "the greatest television series ever made," and meant it. (Dunno about that, but it's surely got to be in the running.)

The Wire is not for you if you blanch at strong language, including but not limited to slurs relating to race and sexual orientation. (Though if that's a problem, you probably stopped reading a couple paragraphs ago.) You're also not going to like it if you have a problem with occasional nudity, simulated sex, drug use, or graphic and frequent violence.

It's also often very sad. Bad people don't always get what's coming to them; good people either. Also it's frequently very hard to tell the difference: this is not a show where everybody's either good or bad and they all have color-coded hats on at all times so you know who is who. You'll be amazed at some of the people you'll eventually feel sorry for.

The Wire is also frequently hard to follow: like most shows, they'll tell you what you need to know, but unlike most shows, they won't keep telling you and telling you to make sure you get it. (Closed captioning helps, as does watching with someone else.) But paying close attention pays off. Also, do yourself a favor and start watching from the beginning of season 1: we were getting DVDs from the library, but we missed some episodes in season 1 because some people hadn't returned the relevant discs yet, which made our experience more confusing than it had to be.

Anyway. If you're looking for more specific things about what the show's about or what it's like, you can check the Wikipedia page for the show; the above is just what I like about it. If you've heard nice things before and thought, oh, I should check that out sometime, this is me letting you know that you really, really should.

Anyway. On to the leaves.

(The previous transmitted light posts can be found here.)

Rubus sp. Good leaf, but bad photo. With a lot of these, I was taping them to the light on Nina's terrarium and then taking pictures that way (It's easier to keep the leaf still when it's unable to move.), and this one apparently caught more of a shadow than I intended.


Plantago major. I'd been curious about what broadleaf plantain would look like by transmitted light for a while before I actually got around to doing it. It's one of my favorite weeds, going back to when I was a kid. The photo, obviously, was disappointing. These things happen.


Vitis sp. Surprisingly similar to the Rubus picture, just in a different color. Which I guess is kind of cool?


Trifolium pratense. My favorite picture from this set, for reasons I don't quite understand. I like the plant quite a bit, too, as far as that goes.


Begonia NOID, possibly 'Texas Coffee Star.' I've done this plant before, but this wound up being a slightly better picture than the previous one.


Aspidistra elatior. So far, this is working out much better for me than A. lurida ever did; it hasn't been that much time, and it's not growing very fast, or at all, but I'll still be ecstatic with the plant if it makes it through the winter. Wish me luck.


Musa x 'Cheeka.' Picture's pretty cool, but this was a really bad purchase. Although the plant is still alive, it's not happy: each new leaf is smaller than the one before, and it's gotten better-than-usual care, by my standards -- more light, more warmth, more fertilizer -- so it shouldn't be complaining the way it is. We won't be trying any Musa or Ensete species again. At least not unless something big changes around here.


Asclepias syriaca. Was not expecting the common milkweed to have so much going on, vein-wise.


Abutilon 'Bella Red,' petals. The color is wrong here; it's a lot less orange than this, really. I blame the camera.


Ficus elastica 'Tineke.' (ID uncertain; there are lots of variegated Ficus elastica varieties out there.) Also too orange. I don't know how many pictures of this species I've tried, but I don't think I've been happy with one yet. I blame myself.