PLEATED:
Petals that have a deep longitudinal crease on each side of the midrib. These creases cause folding of the petal upon itself creating a raised platform extending from the top of the perianth tube and ending between the throat and the petal tip. (Pleating has been referred to as "origami" in The Daylily Journal. See references.)

Photo by Michael Brown, used with permission.  Cultivar: ANASTASIA (Salter, 1995)

Photo by Curt Hanson, used with permission. Cultivar: 'Fad Gadget' (Hanson-C. 2007)

Photo by Curt Hanson, used with permission. Cultivar: 'Mother Upduff' (Curt Hanson 2008)

Cristate:
A term that refers to appendages of extra petal tissue growing from the midrib or elsewhere on the surface of the petals. When the extra tissue grows from the midribs, the form is called “Midrib Cristate”. (Other cristate forms have been referred to as "gothic" in The Daylily Journal. See references.)

Cristate can occur on single and double daylilies, but by itself, does not make a daylily double.

Photo by Charmaine Rich, used with permission. Cultivar: 'Sigourney' (Hanson-C. 2008)

Photo by Jack Carpenter, used with permission. H. ‘Texas Feathered Fancy’(Carpenter-J. 2006)

The next two examples show the midrib cristate form.


Photo: Paul Owen, used with permission. H. 'Little Miss Lucy' (Owen-P. 2010)

Photo by Patrick Stamile, used with permission. Culitvar: 'Kevin Walek' Stamile '98

RELIEF:
The relief forms are characterized by vertically raised ridges that extend from the throat and project from the petal surface. The ridges may grow parallel to the veins, or they may radiate outwards from each side of the midrib. (Relief forms have been referred to as "repousse", "carved" and "embossed" in The Daylily Journal. See references.)

Parallel ridges between veins.

Photo by Dan Hansen, used with permission. Cultivar: 'Hogwarts Express' (Hansen-D. 2005)


Photo by Dan Hansen, used with permission. Cultivar: 'Our Miss Ruby' (Hansen-D. 2007)


Photo by Tim Fehr, used with permission. Cultivar: 'The Butler Did It' (Kinnebrew-J., 2007)

REFERENCES
More information about these forms may be found in the following references:

"Scratching the Surface - Understanding the Art of the Sculptured Daylily", The Daylily Journal. 64 no.1 (Spring 2009) pp. 44-60.

"Exploring the Matrix - The inside and out of daylily petals", The Daylily Journal. 64 no.4 (Winter, 2009) pp. 40-44.

Entry written by Charmaine Rich and the Scientific Studies Committee, 2010.