Blasia
Encyclopedia
Blasia pusilla is the only species in the liverwort
genus
Blasia. It is distinguished from Cavicularia
by the presence of a collar around the base of the sporophyte
capsule, and a scattered arrangement of sperm-producing antheridia
.
Marchantiophyta
The Marchantiophyta are a division of bryophyte plants commonly referred to as hepatics or liverworts. Like other bryophytes, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of genetic information....
genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
Blasia. It is distinguished from Cavicularia
Cavicularia
Cavicularia densa is the only species in the liverwort genus Cavicularia. It is distinguished from Blasia by the absence of a collar around the base of the sporophyte capsule, and a clustered arrangement of sperm-producing antheridia....
by the presence of a collar around the base of the sporophyte
Sporophyte
All land plants, and some algae, have life cycles in which a haploid gametophyte generation alternates with a diploid sporophyte, the generation of a plant or algae that has a double set of chromosomes. A multicellular sporophyte generation or phase is present in the life cycle of all land plants...
capsule, and a scattered arrangement of sperm-producing antheridia
Antheridium
An antheridium or antherida is a haploid structure or organ producing and containing male gametes . It is present in the gametophyte phase of lower plants like mosses and ferns, and also in the primitive vascular psilotophytes...
.