127
409
Leaf parallel-veined.
Corolla funnel-shaped,
with a well-developed
tube. Stems erect
410
410
Corolla with a
cylindrical tube (at
most 4 mm wide), <
2.5(-3) cm long.
411
410
Corolla with a funnel-
shaped tube (c. 1 cm
wide at the mouth), >
2.5 cm long
415
411
Annual plants with
thin roots
412
411
Perennial plants with
thick roots
413
412
Calyx without well-
developed wings, c.
2/3 as long as the
corolla tube and
pressed against the
latter. Corolla 8-12
mm wide. Petals 4-5
mm long
Gentiana nivalis L.
412
Calyx with 2-3 mm
long wings, c. as long
as the corolla tube and
clearly wider at the
top. Corolla > 12 mm
wide. Petals up to 11
mm long
Gentiana
utriculosa L.
413
Basal leaves forming a
rosette, 2-4 times as
those of the stem.
Calyx winged
Gentiana verna L.
subsp. verna
413
Basal leaves not
forming a rosette, or, if
414