Plagiochila

 Plagiochila deltoidea, from here.

Belongs within: Jungermanniales.

Plagiochila is a cosmopolitan genus of leafy liverworts; with over 1200 species, it is the largest of the recognised liverwort genera. Members of the genus are very diverse in superficial appearance, including both trailing epiphytic species and forms with reduced leaves.

Characters (from Hong 1992): Dioicous gametangia; gemmae absent; creeping rhizomatous stems; branching of lateral-intercalary and Frullania types; rhizoid generally absent; succubous, obliquely inserted, long decurrent leaves; vestigial underleaves; strongly laterally compressed perianths; perigynium absent; oval-globose capsules (four-valved at base); bispiral elaters.

<==Plagiochila
    |--P. acanthodaJ87
    |--P. adiantoidesJ87
    |--P. ambustaE03
    |--P. angulataE03
    |--P. angusticedensJ87
    |--P. angustispinaJ87
    |--P. annotinaM49
    |--P. ansata Hooker & Taylor 1847 [=Jungermannia ansata Hooker & Taylor 1844]E03
    |--P. arbusculaM49
    |--P. asplenioidesM08
    |--P. barbadensisJ87
    |--P. bidensJ87
    |--P. bifariaJ87
    |--P. bispinosa Lindenb. 1858E03
    |--P. boissieriJ87
    |--P. bursataJ87
    |--P. circinalisE03
    |--P. conjugataM49
    |--P. corticolaG06
    |--P. crispataJ87
    |--P. cristataJ87
    |--P. cuspidataG06
    |--P. debilisG06
    |--P. deltoideaM49
    |--P. denticulataG06
    |--P. devexaG06
    |--P. drueliiG06
    |--P. duraE03
    |--P. duricaulis Hooker & Taylor 1847 [=Jungermannia duricaulis Hooker & Taylor 1844]E03
    |--P. elataD03
    |--P. elegansG06
    |--P. fagicolaE03
    |--P. fasciculataM49
    |--P. flexicaulisD03
    |--P. flexuosaG06
    |--P. fruticosaG06
    |--P. fuegiensisE03
    |--P. gayanaD03
    |--P. giganteaM49
    |--P. gracilisG06
    |--P. gregariaM49
    |--P. heteromallaE03
    |--P. hirtaE03
    |--P. hyadesianaE03
    |--P. hypnoidesJ87
    |--P. jacquinotiiE03
    |--P. jamesoniiJ87
    |--P. kroneanaJ87
    |--P. latifronsD03
    |--P. lechleriE03
    |--P. longissimaD03
    |--P. lyalliiM49
    |--P. macvicariiJ87
    |--P. mundaliensisG06
    |--P. neesianaE03
    |--P. nepalensisG06
    |--P. obcuneataE03
    |--P. patagonicaE03
    |--P. perrottetianaJ87
    |--P. pleurotaM49
    |--P. porelloidesM08
    |--P. pseudorenitensG06
    |--P. ramosissimaM49
    |--P. rectangulataE03
    |--P. remotidensE03
    |--P. retrospectansSF01
    |--P. robustaE03
    |--P. rufescensD03
    |--P. savatieranaE03
    |--P. sciophilaG06
    |--P. secretifoliaG06
    |--P. semidecurrensG06
    |--P. sinclairiiM49
    |--P. solitariaJ87
    |--P. stephensonianaSF01
    |--P. subpectinataE03
    |--P. subsimilisC82
    |--P. subtropicalG06
    |--P. superbaJ87
    |--P. tenuisJ87
    |--P. tristisD03
    `--P. uncialisE03

*Type species of generic name indicated

References

[C82] Colenso, W. 1882. On some newly-discovered New Zealand arachnids. Transactions and Proceedings of the New Zealand Institute 15: 165–173.

[D03] Dusén, P. 1903. The vegetation of western Patagonia. In: Scott, W. B. (ed.) Reports of the Princeton University Expeditions to Patagonia, 18961899 vol. 8. Botany pp. 1–34. The University: Princeton (New Jersey).

[E03] Evans, A. W. 1903. Hepaticae collected in southern Patagonia. In: Scott, W. B. (ed.) Reports of the Princeton University Expeditions to Patagonia, 18961899 vol. 8. Botany pp. 35–62. The University: Princeton (New Jersey).

[G06] Ghosh, J. P. 2006. A preliminary check-list of hepatics of West Bengal. Bulletin of the Botanical Survey of India 48: 73–102.

Hong, W. S. 1992. Plagiochila in western North America. Bryologist 95 (2): 142–147.

[J87] Judd, W. S. 1987. Floristic study of Morne La Visite and Pic Macaya National Parks, Haiti. Bulletin of the Florida State MuseumBiological Sciences 32 (1): 1–136.

[M08] Marstaller, R. 2008. Moosgesellschaften am Südrand des Kyffhäusergebirges bei Bad Frankenhausen (Kyffhäuserkreis). 130. Beitrag zur Moosvegetation Thüringens. Mauritiana 20 (2): 289–348.

[M49] Martin, W. 1949. The bryophytes of Stewart Island.—Part I. Transactions and Proceedings of the Royal Society of New Zealand 77 (2): 257–277.

[SF01] Stech, M., & W. Frey. 2001. CpDNA-relationship and classification of the liverworts (Hepaticophytina, Bryophyta). Nova Hedwigia 72 (1–2): 45–58.

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