Lena Struwe,^*,** Siwert Nilsson,^***,**** Victor A. Albert<sup>*****


*</sup>Author for correspondence.
^**Department of Ecology, Evolution, and Natural Resources, 237 Foran Hall, 59 Dudley Road, Rutgers University, New Brunswick, New Jersey 08901, U.S.A. Email: struwe@aesop.rutgers.edu.
^***Palynologiska Laboratoriet, Naturhistoriska Riksmuseet, Roslagsvägen 101, 104 05 Stockholm, Sweden.
^****Dr. Siwert Nilsson unexpectedly passed away onAugust 19, 2002. Siwert Nilsson was the world's foremost expert on Gentianaceae pollen and the former head of the Palynological Laboratory at the Swedish Museum of Natural History in Stockholm. He was also a personal friend of LS since her undergraduate years. His synthesis of all known palynological data from the Gentianaceae had been published only a few months before his death as an extensive chapter in our book Gentianaceae—Systematics and Natural History. This paper on Roraimaea was in progress when he passed away and his palynological data is here published posthumously with him as co-author as originally planned.
^*****Natural History Museum, University of Oslo, P. O. Box 1172 Blindern, N0-0318 Oslo, Norway.