� Pollination ecology of Impatiens maculata Wight. � An endemic balsam of southern Western Ghats � Pollen diversity in Coringa mangrove flora of East Godavari District, Andhra Pradesh � An ecological study of sexual reproduction in some non-viviparous mangrove plant species � Seasonal variations and effect of temperature and salinity on the b-carotene content of some seaweeds of Visakhapatnam, East Coast of India � An ecological study of sexual reproduction in some tropical herbaceous weeds � Diversity and distribution of pteridophytes in the flora of Ethiopia and Eretria � Pollen productivity in some Sonchus species (Asteraceae)