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PJB-1989-18
Studies in the pollen morphology of arnebia species (boraginaceae ) from pakistan
Abstract
A palynological study of 9 species of the genus arnebia from Pakistan was carried out . the pollen were characterized by having two endoapertures per ectoaperture and a well developed costae with rectangular to constructed rectangular equatorial outline and echinate tectum. Using principle component analysis (PCA) and cluster analysis of various pollen characters a correlation of the style length and polen size was worked out.
