 Asci of "Ascosphaera" fill honey bee larvae and pupae causing mummification with a chalk-like appearance, hence the name "chalkbrood".Yeasts for small colonies in vitro and in vivo, and excessive growth of "Candida" species in the mouth or vagina causes "thrush", a form of candidiasis.The cell walls of the ascomycetes almost always contain chitin and β-glucans, and divisions within the hyphae, called "septa", are the internal boundaries of individual cells (or compartments).