Calyx. Perianthium monophyllum, sub-inflatum, corolla duplo brevius, quinquangulatum, quinquepartitum; angulis medio dilatatis, compressis extantibus; laciniis ovatis, acutis.
Corolla monopetala, campanulata, crenato-decem-partita; limbo patente.
Stamina. Filamenta quinque, filiformia, tubo corollæ inserta, erecta, inæqualia, corolla breviora. Antheræ ovatæ, compressæ.
Pistilla. Germen quatuor, supera, glabra. Styli duo, capillares, divaricati, longitudine corollæ. Stigmata orbiculata, lanata.
Pericarpium nullum.
Semina quatuor, globosa, arillata, in fundo calycis.
Empalement. Cup one leaf, a little inflated, shorter by half than the blossom, five-cornered, five-parted; the angles widened in the middle, flattened, standing out; segments egg-shaped, pointed.
Blossom one-petal, bell-shaped, ten-parted by scollops; border spreading.
Chives. Threads five, hair like, inserted into the tube of the blossom, erect, unequal, shorter than the blossom. Tips egg-shaped, flattened.
Pointals. Seed-buds four, above, smooth. Shafts two, hair-like, straddling, the length of the blossom. Summits orbicular, woolly.