On some pollen morphological concepts

Abstract

The paper reviews some widely used pollen morphological concepts which are slightly vague and ambiguous. To meet the needs of palynological descriptions. the terminology has to be precise and, as far as possible, numerically defined. The terms oncus. vermca. annulus, prolate and oblate are discussed and redefined. The words sculpture and structure are discusssed, delimited and defined, and it is proposed that they be accepted as terms. A new term. pseudo-annulus has been proposed.

Pollen morphology of the genusPaliurus(Rhamnaceae)

“…Observations and photomicrographs were taken on a ZEISS 10 transmission electron microscope. Nilsson & Praglowski (1992), Praglowski & Raj (1979), Punt et al (1994), and Schirarend 8: Kohler (1993). The quantitative values given in the descriptions and tables represent the means or ranges of the means and in parentheses the absolute range of the measurements.…”

A Note on the Pollen Morphology of the Empetraceae

“…The sections were poststained in aqueous uranyl acetate and lead citrate. The terminology used follows mainly that of Erdtman (1969) and Praglowski & Raj (1979). …”

Pollen morphological studies in the Malvaceae

“…-The terminology used is a combination of that of Erdtman (1952), Erdtman (1969), and Faegri & Iversen (1975) with some additional or newly defined terms from Anonymous (1958), Praglowski & Punt (1973), Nilsson & Muller (1978), and Praglowski & Raj (1979).…”