Figure 9-13. 9 SEM micrograph of a female plant with an immature sporophyte enclosed by the pseudoperianth. 10 Base of the pseudoperianth shown in figure 9, showing scales on its surface. 11 Close up of the mouth of the pseudoperianth shown in figure 9. 12 Fully developed pseudoperianth, partially cut away to show the upper part of the calyptra (c), near its point of fusion with the pseudoperianth, and the remnants of the elongated seta (s); note the basal stalk of fleshy tissue that surrounds the foot and basal part of the seta and the position of the basal scales, which is marked by the arrow. 13 The open mouth of the mature pseudoperianth shown in figure 12.