Difference between revisions of "Cerastium arvense"

From Puget Prairie Plants
(Created page with '===Seed=== '''Abbreviation:''' CEAR '''Seed sample from:''' 2011 '''Average Measurement:''' 0.9 x 0.9 x 0.5 '''Measurement Range: L:''' 0.75 – 1, W: 0.8 – 1, D: 0.4 – 0.…')
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[[File:CEAR.png|thumb|right|300px|''Cerastium arvense'' seeds </br> Photo Credit Lisa Hintz]]
'''Abbreviation:''' CEAR
'''Abbreviation:''' CEAR
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'''Longitudinal Cross Section:''' obovate [[File:CEAR long.png]]
'''Longitudinal Cross Section:''' obovate [[File:CEAR long.png]]

Revision as of 10:55, 30 April 2012

Cerastium arvense seeds
Photo Credit Lisa Hintz


Abbreviation: CEAR

Seed sample from: 2011

Average Measurement: 0.9 x 0.9 x 0.5

Measurement Range: L: 0.75 – 1, W: 0.8 – 1, D: 0.4 – 0.6


Shape: Seed somewhat kidney shaped, narrower at hilum and broadening at opposite apex. Hilum pinched.

Color: Rusty brown to orange brown. Hilum white.

Surface: Matte and covered with many small bumps, arranged in concentric half circles originating at the hilum and broadening at the opposite apex.

Latitudinal Cross Section: elliptical CEAR lat.png

Longitudinal Cross Section: obovate CEAR long.png

Basic Explanations and Assumptions:

The dimensions for the seeds are length x width x depth. The location of the hilum is used as the base of the seed, and the length is measured from hilum to the opposite apex. Where a style is present, the length is measured from the hilum to the bottom of the style. Width is measured at a right angle to the length at the widest part. Depth is measured at a right angle to the intersection of height and width lines.

Measurements included are the mean average for each measurement of ten separate seeds.

All measurements in millimeters unless otherwise noted.