CREATE TABLE table_20916 ("Central Forest Reserve" TEXT, "Size in km\\u00b2" FLOAT, "Total plant species" FLOAT, "Tree species" FLOAT, "Endemic" FLOAT, "Threatened  ( CR , VU , EN ) " FLOAT)

How many tree species are in the kitechura reserve?
SELECT "Tree species" FROM table_20916 WHERE "Central Forest Reserve" = 'Kitechura'
SELECT "Tree species" FROM "table_20916" WHERE "Central Forest Reserve" = 'Kitechura'