Yes, they can be both ....
If with "UF" unusual form (UFO) is meant, then that is a classification of the flowers form. This is regardless of the ratio. A Spider and a non-Spider can be a UFO.
... here from AHS (page 7 and 8):
On a Spider, the petals and sepals are much longer in proportion to thei
r width than a normal
flower. A SPIDER is a daylily whose petal length to width ratio is at least 4.0:1. A box is provided
for you to indicate if the cultivar is a SPIDER with space to record petal width and length in inches.
Measuring a Spider daylily: F
or width, measure the longest petal at its widest point as naturally
standing (without uncurling, unfolding, or flattening any portion of the petal). For length, stretch
out the petal to its fullest and measure the length of the longest petal from its tip
to the v
notch formed where the adjacent sepals separate at the neck of the flower. The result of dividing
the length by the width is expressed in the form of a ratio (e.g., 5.6:1 which is read "five point six
n class designated as
(pinched, twisted, or quilled
(narrow curling or cascading segments); and
markedly wider at the end like a kitchen spatula). The Unusual Form class is bas
ed exclusively on
form not on color or color patterns. An Unusual Form must display Unusual Form characteristics
on at least 3 petals or 3 sepals