Haplobiontic Describing life cycles in which only one type of somatic body is formed, which may be either haploid or diploid, i.e. either the sporophyte or the gametophyte generation is missing.

• 单型世代：生活史中仅有一种生活的单倍体或二倍体的植物体，也就是说其孢子体或配子体世代缺失了。