May 30, 2007

Species #11: Common Horsetail

Filed under: Vascular Plants — goff @ 4:02 pm

Common Horsetail

Common Horsetail
Equisetum arvense

This species is typically found in disturbed areas. With favorable ground conditions, it can form very dense stands that I imagine are probably clonal. These are the non-reproductive parts of the plant that are just growing to full size. The leaves (such as they are) will continue to get longer.

Other Photos

May 28, 2007

Species #10: Sitka Alder

Filed under: Vascular Plants — goff @ 11:51 pm

Sitka Alder

Sitka Alder
Alnus viridis sinuata

Sitka Alder is fairly common around here. It is most commonly found growing along beach fringes, avalanche tracks and other disturbed locations. Its growth is typically shrubby, with multiple smaller growths rather than a central large trunk. Its leaves also are double toothed, unlike its close relative, Red Alder. I had never before noticed the structures that I am guessing are flowers. I’m thinking the catkins are the male part, and perhaps these structures are the female flowers that will eventually develop into the cones (the photo with cones below shows cones still remaining from last year).

Sitka Alder Leaf

Sitka Alder Cones

Sitka Alder

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Species #9: Hacklemesh Weaver

Filed under: Invertebrates,Unidentified (Help!) — goff @ 11:28 pm

Spider

Hacklemesh Weaver
Callobius pictus

Thanks to Eric Eaton via bugguide.net for the family identification. The name ‘Hacklemesh Weaver’ is for the family group, not the individual species (which does not seem to have a common name).

Thanks to Jozef Slowik via Nearctic Arachnologists’ Forum for the species identification. He has written a paper on a survey of spiders on Chichagof Island (pdf) that I suspect will be helpful for figuring out the species of spiders I might find in the future.

I noticed this spider crawling down the side of a trash box while working on my computer this evening. It was a little distracting to see something large and dark slowly moving out of the corner of my eye. However, with this project as motivation, I took advantage of the situation and put it in a jar. It was pretty active, so I tried the refrigerator trick and after a few minutes it was far less active. I placed in a glass baking pan with paper on the bottom to take the pictures. At first its legs were all pulled in tight, but eventually it spread them out a little bit. After a few minutes it warmed up again and started moving around. Let’s just say it can be a little startling to be looking through the camera trying to take a close up of a spider’s face and then have it come scurrying rapidly toward you(r lens).

I have no idea how to identify spiders at this point, so I’ve submitted the photo to bugguide.net and the Nearctic Arachnologists’ Forum and will hope for some help.

Spider

Spider

Spider

Spider

Spider

Species #8: Metzgeria conjugata

Filed under: Bryophytes — goff @ 4:26 pm

Metzgeria

Liverwort
Metzgeria conjugata

I noticed this rather lush growth of liverworts on the trunk of a Yellow Cedar while wandering around Indian River Valley. I think there were sporophytes present, but they were quite small, looking almost like little pieces of bark or dirt that had fallen into the liverworts.

Metzgeria

Metzgeria

May 27, 2007

Species #7: Tufted Bulrush

Filed under: Vascular Plants — goff @ 10:38 pm

Tufted Bulrush

Tufted Bulrush
Trichophorum caespitosum

This plant is quite common in the muskegs. It often grows in distinctive little clumps of short green stems topped by the small flowers.

Tufted Bulrush

Tufted Bulrush

Other Photos

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