Harvard University Herbaria & Libraries

Index of Botanical Specimens

Classification	Rhodophyta: Rhodomelaceae: Polysiphonia
Harvard University Herbaria Barcode(s)	00976511
Collector	I. Holden
Country	United States of America
State	Massachusetts
Geography	North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Suffolk County: Revere
Locality	Revere Marshes, near Linden Station
Date Collected	1892-09-13
Container	Phycotheca Boreali-Americana
Substrate	on stones, on Ruppia maritima, and on muddy bottom in creek
Project	Macroalgae TCN
GUID	http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/315a6bf4-7867-40dd-9301-172704c5dab5
Harvard University Herbaria Barcode	00976511
Herbarium	FH
Previous ownership	ex Boston Society of Natural History; ex Phycotheca Boreali-Americana 45
Family	Rhodomelaceae
Determination	Polysiphonia subtilissima Montagne
Determination Remarks	[filed under] [current name]
Sex	not determined
Phenology	NotDetermined
Preparation Type	Sheet
Preparation Method	Pressed

Remarks

The prostrate filaments are well developed when the plant grows on mud, less so when on stones or Ruppia. It has been abundant at this station for several years, from July to November, but no fruit of any kind has yet been found. Though slender and apparently delicate, it endures without injury exposure at low tide for several hours to the full heat of the sun, becoming quite dry and brittle; also exposure to heavy rain for the same length of time; in both cases resuming its normal condition with the return of the tide.