(pl. puncta, adj. punctate) ( Erdtman, 1952) A rounded or elongate tectal perforation, less than 1µm in length or diameter. See also: foveola, scrobiculus, tectum perforatum.* Quasisaccus (pl. quasisacci, adj. quasisaccate) ( Meyen, 1988) Synonym of protosaccus.* Quasitectate (adj.) ( Balme, 1988) spore exine in which the outer and inner, more or less homogeneous, layers aer seperated by a clearly defined mesexinous layer of discontinous columellate elements, simulating those that characterise many angiosperm pollen.