59 It is hard to reconcile the structures in Penthorum with other members of Crasulaceae. The flower consists essentially of a central axis dividing into five parts, each bearing on every side a globular placenta typically toward the apex. This central axis expands into a disc, resembling the stigma of Sarcoea, giving rise at the periphery to five equally-spaced styles, each tipped with a minute globular stigma, and each proceeding from a branch of the central axis. Wrapped about the style, and simulating a portion of the expanded disc, is the apical portion of the lateral carpel wall. The carpel walls are circumcissile at the junction of the sepals. The expanded placenta comes to occupy a central position within the carpel. The seeds, borne on short pedicels, resemble those of Hypericum and Rhatine; not at all those of Ledum and Diarrhpta.