Two new diatoms in the genus Fragilaria Lyngbye (Fragilariophyceae) from tropical reservoirs in Brazil and comparison with type material of F. tenera
Fruit micromorphological characters of the genus Grammosciadium DC. (Apiaceae) in Turkey
Hieracium hypochoeroides subsp. cilentanum (Asteraceae), a new taxon from S Italy
Mucuna chiapaneca (Leguminosae—Papilionoideae) a new species from Mexico