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Calyptridium monospermum
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Photographer: Aaron Schusteff
ID: 0000 0000 1208 3134 (2008-12-27)Copyright © 2008 Aaron Schusteff
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INFORMATION PROVIDED WITH THE PHOTO
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date of photo Jul 27, 2006
location
Near Tomahawk Lake, Humphries Basin, Sierra National Forest (Fresno County, California, US)family
Montiaceae
notes Oh the dilemma---is it C. umbellatum or C. monospermum? (Many people seem to be unaware of monospermum and call them both umbellatum...so if I'm in error here, at least it will provide some overall balance to the situation :-) So why am I going with C. monospermum? Well, FNA indicates that umbellatum has white petals wheareas monospermum has rose to pinkish to white petals. (See http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=107148. Note FNA has revised the genus to Cistanthe.) But can't umbellatum be white to rose to pink as well? I think many will attest affirmatively. True, yellow anthers cinch it for umbellatum, but that doesn't help here. The distinguishing character most often used is one terminal inflorescence per rosette for umbellatum, two or more axillary inflorscences per rosette for monospermum. But the leaves obscure verifying this character in this image. I'm estimating there are < 16 rosettes, and since there are 16 inflorescences here and some appear to be emanating from the same (hidden) points under the leaves, I'm going with monospermum. Unfortunately, characters like that often don't behave uniformly enough to allow for simple mathematical reasoning of this sort, so who really knows! But even the experts have a hard time with this stuff...check out some of the Calyptridium links the bottom of the page here: http://ucjeps.berkeley.edu/consortium/CCH_newdet_byaid.html . OK, so much for my 'truth in determination' disclaimer.camera Shot on a Canon Digital Rebel XT at f14, 1/125, ISO 100, with flash, using a Canon 50mm Compact macro lens.
photo category: Plant - annual/perennial
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MORE INFORMATION ABOUT THIS PLANT
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| Look for Jepson Manual treatments, maps (University & Jepson Herbaria)View Calflora record for Calyptridium monospermumView all photos in CalPhotos of Calyptridium monospermum Check Google Images for Calyptridium monospermum |
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The photographer's identification Calyptridium monospermum has not been reviewed. Click here to review or comment on the identification. |
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Using this photo The thumbnail photo (128x192 pixels) on this page may be freely used for personal or academic purposes without prior permission under the Fair Use provisions of US copyright law as long as the photo is clearly credited with © 2008 Aaron Schusteff.
For other uses, or if you have questions, contact Aaron Schusteff arbonius2[AT]sbcglobal.net. (Replace the [AT] with the @ symbol before sending an email.) |
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