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Racemed Milkwort (Polygala polygama) and Two-leaved Water Milfoil (Myriophyllum heterophyllum) Specimens

Om171_747693_001

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Title	Racemed Milkwort (Polygala polygama) and Two-leaved Water Milfoil (Myriophyllum heterophyllum) Specimens
Subject	Plants and Animals Flowers
Place	Cleveland (Ohio) Cuyahoga County (Ohio) Mentor (Ohio) Lake County (Ohio)
Description	Leslie Stair collected these specimens, which are pressed onto 11" x 17" (27.9 cm x 43.18 cm) sheets of paper, while he was an engineering student at Case Western Reserve University. The racemed milkwort (Polygala polygama) has not been documented in Cuyahoga County since 1902, when Stair collected this specimen from University Circle in Cleveland. It is currently threatened in Ohio, meaning that it is not in immediate danger of being extirpated, or eliminated, but is in danger due to habitat destruction or other factors. The racemed milkwort grows in open areas with sandy soils. It produces pink flowers in mid-summer. Stair also collected this specimen of a two-leaved water-milfoil, or Myriophyllum heterophyllum , from Mentor Marsh in Lake County. This 1897 record is the only record of the plant at Mentor Marsh. Two-leaved water-milfoil is currently endangered in Ohio. Endangered species are on the verge of being eliminated in the wild. The two-leaved water milfoil grows in ponds, lakes, and streams throughout Ohio, but is threatened by habitat drainage. Mentor Marsh became Ohio's first State Nature Preserve in 1971.
Date of Original	1897; 1902
Source	Natural history specimen(s) HE-9134 HE-9779
Submitting Institution	Cleveland Museum of Natural History
Type	StillImage
Format	picture

Title	Om171_747693_001
Rights	For rights and reproduction requests, go to the Ohio Historical Society's Audiovisual and Graphic Reproduction Services page at http://www.ohiohistory.org/resource/audiovis/photodup.html; Online access is provided for research purposes only. For rights and reproduction requests or more information, go to http://www.ohiohistory.org/images/information
File Name	Om171_747693_001.tif
Image Height	1868
Image Width	1332
File Size	593.774 KB

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Racemed Milkwort (Polygala polygama) and Two-leaved Water Milfoil (Myriophyllum heterophyllum) Specimens

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