Antonina Georgievna Borissova (1903-1970) was a Russianbotanist, specialising in the flora of the deserts and semi-deserts of central Asia. 1903 has the latest occurring solstices and equinoxes for 400 years, because the Gregorian calendar hasnt had a leap year for seven years or a century leap year since 1600. ... 1970 was a common year starting on Thursday. ... Botany is the scientific study of plant life. ... Flora is a collective term for plant life. ... A dune in the Egyptian desert Desert in California In geography, a desert is a landscape form or region that receives little precipitation. ... Map of Central Asia outlined in orange showing one set of possible borders Central Asia located as a region of the world Central Asia is a vast landlocked region of Asia. ...