In this task, you will be given a passage to read. A fill in the blank question will be given to you. Your answer should fit the blank appropriately.

The fruitbodies ( ascocarps ) of Geopyxis carbonaris are cup shaped , 1 2 cm wide , and have fringed whitish margins . The inner spore @-@ bearing surface of the cup , the hymenium , is brick red and smooth , while the exterior surface is a dull yellow , and may be either smooth or have blister @-@ like spots ( pustules ) . The stipe is small ( 1 1 @.@ 5 mm long and 1 2 mm wide ) , whitish in color , and expands abruptly into the cup . The brownish flesh of the fungus is thin and brittle . It does not have any distinctive taste , but has an unpleasant smell when crushed in water . The edibility of the fungus is not known , but the fruitbodies are insubstantial and unlikely to be harvested for eating .fill in the blank : The fruitbodies ( ascocarps ) of Geopyxis carbonaris are cup shaped , 1 __________________ cm wide , and have fringed whitish margins .
2