BPotD Archives being removed

Results tagged “may-05”

May 5, 2011: Thalictrum thalictroides

Thalictrum thalictroides

Claire is the author of today's entry:

Marie Viljoen (M Viljoen@Flickr | Marie's blog) from Brooklyn, NY, provided this photograph of Thalictrum thalictroides, taken in early April. Thank you again, Marie!

Thalictrum thalictroides, or rue-anemone, is a native of the eastern USA, found from the Great Lakes to northern Florida, and west as far as Oklahoma. Originally, Thalictrum thalictroides was named as Anemone thalictroides by Linnaeus. In 1839, Édouard Spach placed it in a genus all to its own - Anemonella (a name that persists in most modern references). Spach asserted that its tuberous roots and umbelliform inflorescence were a few of the characters that separated it from Anemone. The species was later redescribed by Boivin and Eames and placed in Thalictrum, which modern molecular work also supports. It is easy to understand, however, why Linnaeus originally thought Anemone, with its flowers on plants to 20cm tall appearing much like petite anemones. Thalictrum thalictroides is an early spring bloomer, and the rust-coloured leaves at emergence will eventually turn green towards the start of summer.

May 5, 2008: Macrocystis sp.

Macrocystis sp.

I'm surprised that no kelp flies made it into this photograph. Dipterans (perhaps in the Coelopidae) seemed to be swarming on all of the knotted kelp clumps found on the rocky Weston Beach at Point Lobos. As Dr. William Bushing notes in this article on Macrocystis pyrifera, "...These decaying kelp plants provide food for many of the sandy beach invertebrates including kelp flies and beach hoppers on the surface, and marine life that burrows into the sand."

Even though there are no flies to spot, a close look will net you a reflection of me in the lower left pneumatocyst (I was wearing a hat) and partial reflections in the other two (mostly of the legs of the tripod).

1

a place of mind, The University of British Columbia

 
UBC Botanical Garden and Centre for Plant Research
6804 SW Marine Drive, Vancouver, B.C., V6T 1Z4
Tel: 604.822.3928
Fax: 604.822.2016 Email: garden.info@ubc.ca

Emergency Procedures | Accessibility | Contact UBC | © Copyright The University of British Columbia