Prickly Sow Thistle (Sonchus asper) Pollen
This is pollen collected from a Prickly Sow Thistle (Sonchus asper) flower found in a yard in Puyallup, Washington. It has been dewaxed with alcohol but not acetalized. The mounting medium is Melt Mount with a refractive index of 1.704. This is at equitorial focus.
Transmitted Brightfield Illumination
Kapp, Ronald O., HOW TO KNOW POLLEN AND SPORES, Wm. C. Brown Company, 1969.
Moore, P.D., J. A. Webb, and M. E. Collinson, POLLEN ANALYSIS, Blackwell Scientific Publications, 1991
Definition/Function:
KINGDOM: Plantae /Angiosperms /Eudicots /Asterids ORDER: Asterales FAMILY: Asteraceae TRIBE: Cichorieae GENUS: Sonchus SPECIES: asper
Significance in the Environment:
Characteristic Features:
Associated Particles:
References:
Faegri, Knut and Johs Iversen, TEXTBOOK OF POLLEN ANALYSIS, Hafner Publishing Company, 1964.Kapp, Ronald O., HOW TO KNOW POLLEN AND SPORES, Wm. C. Brown Company, 1969.
Moore, P.D., J. A. Webb, and M. E. Collinson, POLLEN ANALYSIS, Blackwell Scientific Publications, 1991
