Abstract

The pollen grains of Formosan plants, i.e. 66 families, 155 genera, and 263 species were studied. A brief description for each taxon as well as keys for genera and species were prepared for each family. The pollen grains were extracted from the dry herbarium specimens which are deposited in the Botany Department (TAI) and Forest Department (TAF) of the national taiwan university,Taiwan forest research institute (TAIF), and Pingtung Agricultural College (PA). In addition, fresh materials were used from the author's collection. The pollen grains of all available taxa were studied from permanent slides prepared by the acetolysis method outlined by erdtman (1956). The palynological terminology follows that of erdtman (1966), and Faegri, Iversen, and Waterbolk (1964). When possible,the size is measured randomly on the nasis of 30 grains for each collection.