Jungermannia

 Jungermannia truncata, from here.

Belongs within: Jungermanniales.

Jungermannia is a cosmopolitan genus of liverworts.

Characters (from Smith 1991): Dioecious or paroecious. Plants small to large, yellowish-green to brown. Where dioecious male plants smaller than female. Shoots prostrate to erect; branches arising laterally, innovations arising from below perianth. Rhizoids usually abundant, colourless to brown or deep red or purple. Leaves alternate, obliquely inserted, succubous, reniform, orbicular, ovate or elliptical, entire; oil bodies one to several per cell. Underleaves absent. Gemmae usually absent. Male bracts terminal, becoming intercalary, or below female, of similar shape to leaves, saccate at base. Female bracts of similar shape to leaves, entire; bracteoles absent. Perigynium absent or very short, or long and bearing one or two pairs female bracts. Periant 0-⅔ emergent, shortly cylindrical, obovoid, clavate or fusiform, smooth or more usually plicate above, gradually or abruptly contracted to mouth. Capsule wall bistratose. Spores 10-24 μm.

<==Jungermannia
    |--J. subg. PlectocoleaAKS07
    |    |--J. sect. PlectocoleaAKS07
    |    |    |--J. comataAKS07
    |    |    |--J. glauca Amakawa in Hara 1966AKS07, SS07
    |    |    |--J. hasskarlianaAKS07
    |    |    |--J. nilgiriensis Alam, Kumar & Srivastava 2007AKS07
    |    |    |--J. pfleidereriAKS07
    |    |    |--J. rubripunctataAKS07
    |    |    |--J. sikkimensisAKS07
    |    |    |--J. tetragonaAKS07
    |    |    `--J. truncataAKS07
    |    |         |--J. t. var. truncataAKS07
    |    |         `--J. t. var. setulosaAKS07
    |    `--J. (sect. Eucalyx) infuscaAKS07
    `--J. subg. SolenostomaG06
         |--J. appressifoliaG06
         |    |--J. a. var. appressifoliaG06
         |    `--J. a. var. nigricansG06
         |--J. atrobruneaG06
         |--‘Solenostoma’ dulongenseB-OO10
         |--J. heterolimbataG06
         |--J. lanigeraG06
         |--J. limbatifoliaG06
         |--J. macrocarpaG06
         |--J. parvitexaG06
         |--J. pseudocyclopsG06
         |--J. schaulianaG06
         |--J. stephanii (Schiffn.) Amakawa 1968G06, SG07 [=Aplozia stephanii Schiffn. 1898SG07]
         |--J. suborbiculataG06
         `--J. subrubraG06
Jungermannia incertae sedis:
  J. antarctica Ångström 1872 [incl. J. pigafettoana Massal. 1885]E03
  J. atrovirensM08
  J. bengalensisG06
  J. conniveusH04
  J. cribrifoliaE03
  J. eriocaulaE03
  J. excisaE03
  J. floerkiiE03
  J. gollanii Steph. 1917SS07
  J. gracillimaFHH01
  J. hatcheri Evans 1898E03
  J. inundataM49
  J. lycopodioidesE03
  J. parcaeformisE03
  J. platyphyllaG40
  J. propagulifera Gottsche 1890E03
  J. rotataM49
  J. schismoidesE03
  J. sociaE03
  J. ventricosaH04
  J. virgataPK03

*Type species of generic name indicated

References

[AKS07] Alam, A., A. Kumar & S. C. Srivastava. 2007. Jungermannia nilgiriensis, a new species from Nilgiri Hills (Western Ghats) India. Bulletin of the Botanical Survey of India 49: 219–224.

[B-OO10] Bednarek-Ochyra, H., & R. Ochyra. 2010. Bucklandiella shevockii (Bryophyta, Grimmiaceae), an exquisite new species from Yunnan, China. Polish Botanical Journal 55 (2): 499–506.

[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).

[FHH01] Frey, W., M. Hofmann & H. H. Hilger. 2001. The gametophyte-sporophyte junction: unequivocal hints for two evolutionary lines of archegoniate land plants. Flora 196: 431–445.

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

[G40] Gray, J. E. 1840. A Manual of the Land and Fresh-water Shells of the British Islands, with figures of each of the kinds. By William Turton, M.D. A new edition, thoroughly revised and much enlarged. Longman, Orme, Brown, Green, and Longmans: London.

[H04] Haeckel, E. 1899–1904. Kunstformen der Natur. Bibliographisches Institut: Leipzig und Wien.

[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.

[PK03] Piippo, S., & T. Koponen. 2003. Review of the bryofloristic connections of New Guinea Island. Telopea 10 (1): 467–476.

[SG07] Singh, S. K., & J. P. Ghosh. 2007. Bryo-diversity in Indian Botanic Garden, Howrah, West Bengal. Bulletin of the Botanical Survey of India 49: 155–164.

[SS07] Singh, S. K., & D. K. Singh. 2007. A preliminary census of Hepaticae and Anthocerotae of Doon Valley. Bulletin of the Botanical Survey of India 49: 1–14.

Smith, A. J. E. 1991. The Liverworts of Britain and Ireland. Cambridge University Press.

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