division non land plants commonly referred like dominant life cycle cells plant carry single set genetic information estimated species familiar species grow flattened species form like flattened moss species distinguished apparently similar basis number features including single differ leaves present bear marginal rare differences universal occurrence leaves arranged ranks presence deep leaves lack clearly differentiated stem leaves point plant typically small usually wide individual plants long overlooked certain species cover large patches ground rocks trees reasonably firm substrate occur distributed globally available habitat humid locations desert arctic species species green houses gardens physical characteristics description small usually millimetres wide individual plants centimetres long overlooked familiar consist flattened ribbon like branching structure called plant body termed produce flattened stems overlapping scales leaves ranks middle rank different outer ranks called scale gallery examples reliably distinguished apparently similar single differences universal lack clearly differentiated stem leaves species species presence deeply leaves presence leaves arranged ranks point plant unlike contain unique membrane bound oil bodies containing cells plants overall physical similarity means confirmation identification groups performed certainty aid experienced dominant life cycle dependent cells typical plant contain single set genetic information plant cells majority life cycle contrasts sharply pattern exhibited nearly animals plants familiar seed plants generation represented tiny generation familiar tree plant unusual feature life cycle body short lived away long releasing spores persistent spores extended period life cycle life starts spore produce mass thread like flattened stage life grow mature bearer plant produces sex organs male organs known singular produce sperm cells clusters enclosed protective layer cells called land plants female organs known singular protected thin surrounding slender hollow tube neck sperm swim reach egg cell species female male sex organs borne different separate plants kinds reproductive structures borne different branches plant case sperm produced eggs held sperm tail like enable swim short distances provided thin film water present journey assisted japanese researchers discovered able fire sperm containing water air enabling female plants growing metre nearest male sperm reach occurs leading production immature develops distinct regions foot anchors place receives nutrients mother plant spherical capsule inside spores produced new locations stalk lies regions connects developed regions pushing way foot remains anchored parent plant capsule forced extended away plant air capsule cells divide produce cells spore producing cells spring like push open wall capsule capsule bursts spore producing cells undergo form spores disperse point life cycle start reproduction capable reproduction general true reproduction rule exception example older parts die younger tips separate individuals produce small disc shaped shallow cups dispersed rain cups grow margins common covering entire surface containers dispersal primary mechanism spreads nursery greenhouse ecology today found ecosystems planet sea excessively dry environments exposed high levels direct solar radiation groups living plants common numbers species moist tropical areas commonly found moderate deep shade desert species tolerate direct sunlight periods total classification relationship plants traditionally grouped class called grouping makes usually given division use division found literature frequently restricted sense include reason classified separately appear diverged plants near beginning evolution strongest line supporting evidence living group land plants generation earliest fossils believed compression fossils new_york fossils resemble modern species fossil called looks like relationship plants uncertain belong oldest fossils announced middle new_york united_states different types spores found argentina dating earlier middle million years ago internal classification classify division divisional based universally recognized genus addition taxon based called derived common latin latin language published descriptions species led confusion partly appears taxon based derived genus actually flowering plant family addition frequently textbooks adds confusion consensus classification family rank subdivided classes includes orders simple includes orders complex bottle previously placed includes problematic genus placed order class newly recognized basal sister group comprises genera updated classification long bottle complex began estimated species belong group despite fact date genes identified characterized economic importance ancient times believed cured diseases liver old english word literally means liver plant probably stemmed superficial appearance resemble liver outline led common group latin word belonging liver unrelated flowering plant referred treating diseases liver archaic relationship plant form function based doctrine signatures little direct economic importance today greatest impact indirect reduction erosion collection retention water tropical forests formation soil polar regions species humans directly species aquatic sold use thin slender branches float water surface provide habitat small invertebrates fish feed gallery small collection images showing structure diversity
Marchantiophyta