Pagina 40 - Flora of the Southern Carnic Alps

40
117
Leaves > 15 cm long.
Fruits surrounded by a
spiny husk
Castanea sativa
Mill.
117
Leaves usually < 15
cm long. Fruits not
surrounded by spiny
husk
118
118 Flower without petals.
Fruit dry 119
118 Flowers with petals.
Fruit fleshy 124
119
Petiole clearly
flattened
perpendicularly to the
blade
Populus tremula L.
119
Petiole not flattened
perpendicularly to the
blade
120
120
Seeds enclosed within
woody, small, cone-
like structures
121
120
Seeds surrounded at
the base by a leafy
bract, arranged in
inflorescences like
those of the hop
123