1 | Adult leaves linear and more or less rounded at the apex, not lanceolate, upper midrib prominent. |
1' | Adult leaves lanceolate, narrowly acute at the apex, upper midrib indistinct |
2 | Seed and its covering less than 8 mm in diameter. Midrib above sharp |
2' | Seed and its covering more than 10 mm in diameter. Midrib above blunt |