Who is pollinating Claytonia in California?! pt. II

I am still thinking about pollination biology of the tuberous perennial species of Claytonia in southern California, which often have large flowers compared to the annual species in the area. I am making an effort to observe more pollinators this year after having so few observations in the last two years (see pt. I). I have yet to observe the same pollinator at any given locality in southern California for the five putative taxa in the C. “peirsonii” complex. What are they pollinated by? To me, it is all very interesting stuff and I’m happy to take what I can get here and there… but my collaborator Diana Jolles (credit all photos) set out on our previous hike to shoot as many pollinator photos as possible so we might get to the bottom of this. Thanks to Diana’s efforts, we are gathering more clues about who may be pollinating the tuberous perennial Claytonia of southern California, this time from the San Gabriel Mountains populations.

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The insect visiting the Claytonia flower above is a Greater Bee Fly (Bombylius major), a member of the Bombyliidae. It was spending a lot of time visiting each flower: what a fuzzy fly!

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Pictured above are some of Diana’s photos from our first observation of a solitary bee visiting any tuberous perennial Claytonia in southern California. This gorgeous, green, metallic organism is a member of the genus Osmia (orchard bees) in the Megachilidae. These are in the running for the coolest looking native bees in California in my book. Such amazing coloration!

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Lastly, above are Diana’s photos of a third insect visitor seen on February 15th, 2014 near the Devil’s Punchbowl County Park. This dark butterfly is a Duskywing (Erynnis), a member of the Hesperiidae (skippers). It was hard to get a shot as the butterfly hardly seemed to want to sit still, but Diana managed to sneak in a few good ones — thanks so much for all the pictures! I’d like to thank also one of my collaborators, Dr. Emile Fiesler, for identifications of these beautiful pollinators. I hope we can make more pollinator observations this year for all of the members of the C. “peirsonii” complex. Still no overlap in pollinators observed among the members of this southern California species complex, a group currently included in the broad circumscription of Claytonia lanceolata!

Yep, it’s Claytonia time…

That’s right! Below are my first pictures of the 2014 Field Season of Claytonia “peirsonii”, collected just west of Devil’s Punchbowl County Park (Feb 15th, 2014). This population was documented for the first time today, now the westernmost occurrence of C. “peirsonii” that I know.

2014-02-15 14.12.46How many Claytonia do you see in the image below? I’ve counted about 100 individuals… wowza!

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Off to see the southern Sierra Nevada C. “yorkii” next weekend! Jawbone, here we come 😉

Take me with you the next time you go to Siberia…

… I want to go so bad!!!

Above is a figure from one of my collaborator’s papers on the genus Claytonia and relationships among members of the Montieae. In the genus Claytonia, section Claytonia consists primarily of tuberous perennials (the ones I study) with a disjunct distribution between Russia and North America. I’m enthusiastic about the possibility of comparatively observing patterns of evolution in Claytonia across two major continents. This research would monumentally contribute to our understanding of how these plants survived the last 5 million years of Pleistocene climate change (warming and cooling periods). As you can see from my preliminary phylogeny below, some groups that are geographically proximal are not most closely related, the opposite of what would be expected in an isolation-by-distance model! With incorporation of the Russian counterparts into my phylogeny, these data will permit a thorough assessment of the evolution of traits in Claytonia such as perennation structures (e.g., below-ground storage organs).

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Russia is considered a ‘black hole’ for research on Claytonia; I can only imagine how much diversity is yet to be discovered and studied given what I’ve observed in my backyard, the mountains of southern California. The way I see it, Claytonia is the black hole!

How can you help? Just like Pam MacKay, Dean Wm. Taylor, and Danea and James Riley have done recently, you can donate directly to my research fund by sending a check of any amount to Rancho Santa Ana Botanic Garden. The bonus is, all donations are tax-deductible, so everybody wins. Siberia, here we come!