Aponus was a hot spring near Padua.
geton, = neighbor.
A partial anagram of Potamogeton, which in turn comes from Patmos, a river, and geiton, a neighbor. (Le, BL, M)
di-, =two;
dis-, = twice, double;
stachys, = ear of corn.
(in modern botany, ‘spike’)
(when things are arranged in two rows, the one opposite the other)
(here refers to the forked inflorescence) (LS, BL, AB)