Difference between revisions of "Achillea millefolium"

From Puget Prairie Plants
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====Features====  
 
====Features====  
  
'''Shape:''' Seed narrowly winged at margins, thicker in the middle. Seed face is narrower at hilium end, broadening at opposite side.
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'''Shape:''' Seed narrowly winged at margins, thicker in the middle. Seed face is narrower at hilum end, broadening at opposite side.
  
 
'''Color:''' Seed coat papery and white, becoming transparent at the center to reveal a red-brown inner seed.
 
'''Color:''' Seed coat papery and white, becoming transparent at the center to reveal a red-brown inner seed.

Revision as of 19:40, 27 February 2012

Seed

Abbreviation: ACMI

Seed sample from: 2011

Average Measurement: 1.9 x 0.6 x 0.3

Features

Shape: Seed narrowly winged at margins, thicker in the middle. Seed face is narrower at hilum end, broadening at opposite side.

Color: Seed coat papery and white, becoming transparent at the center to reveal a red-brown inner seed.

Surface: Finely longitudinally ridged.

Latitudinal Cross Section: elliptical ACMI-lat-crosssection.png

Longitudinal Cross Section: obovate ACMI-long-crosssection.png

Achillea millefolium
Achillea millefolium


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.