''Metzgeria'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

thalloid Thallus (plural: thalli), from Latinized Ancient Greek, Greek (), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some Marchantiophyta, liverworts, lichens, and the Myxogastr ...

liverworts The Marchantiophyta () are a division of non-vascular land plants commonly referred to as hepatics or liverworts. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of ge ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Metzgeriaceae Metzgeriaceae is a family of thallose liverworts in the order Metzgeriales Metzgeriales is an Order (biology), order of Marchantiophyta, liverworts. The group is sometimes called the simple thalloid liverworts: "thallus, thalloid" because th ...

Taxonomy

The genus was named in honor of Johann Metzger (1771–1844), a German copper engraver and art restorer from

Staufen im Breisgau Staufen im Breisgau (High Alemannic: ''Staufe im Brisgau'') is a German town in the Breisgau-Hochschwarzwald district of Baden-Württemberg. It had a population of approximately 8,300 in 2019. General The city of Staufen im Breisgau lies in the ...

, in

Baden-Württemberg Baden-Württemberg (; ), commonly shortened to BW or BaWü, is a German state () in Southwest Germany, east of the Rhine, which forms the southern part of Germany's western border with France. With more than 11.07 million inhabitants across a ...

, a friend of

Giuseppe Raddi Giuseppe Raddi (9 July 1770 in Florence, Italy – 6 September 1829 the island of Rhodes) was an Italian botanist and curator at the Museum of Natural History of Florence. He was among the first Europeans to explore and document the flora of South ...

and pupil of the great Florentine engraver

Raffaello Sanzio Morghen Raffaello Morghen (19 June 1758 – 8 April 1833) was an Italian engraver. Life He was born in Naples, apparently to a German family of engravers. He received his earliest instructions from his father, himself an engraver; but, to obtain mo ...

(1753–1833).K. Danz 2003. ''‘Florenz ist die Schazkammer von klassischen Gemälden’. Der Florentiner Kunstmarkt im beginnenden 19. Jahrundert und die Gemäldesammlung Ludwigs I. von Bayern''. PhD thesis, Albert-Ludwigs-Universität, Freiburg.

Species

Approximately 120 to 200 species of ''Metzgeria'' have been described. Species may be either

monoicous Monoicy () is a sexual system in haploid plants (mainly bryophytes) where both sperm and eggs are produced on the same gametophyte, in contrast with dioicy, where each gametophyte produces only sperm or eggs but never both.Crandall-Stotler, B.J. ...

dioicous Dioicy () is a sexual system where archegonia and antheridia are produced on separate gametophytes. It is one of the two main sexual systems in bryophytes. Both dioicous () and monoicous gametophytes produce gametes in gametangia by mitosis rathe ...

. Species include the following: * '' Metzgeria angusta'' * ''

Metzgeria atrichoneura ''Metzgeria'' is a genus of thalloid liverworts in the family Metzgeriaceae. Taxonomy The genus was named in honor of Johann Metzger (1771–1844), a German copper engraver and art restorer from Staufen im Breisgau, in Baden-Württemberg, a fri ...

'' * '' Metzgeria conjugata'' * ''

Metzgeria crassipilis ''Metzgeria'' is a genus of thalloid liverworts in the family Metzgeriaceae. Taxonomy The genus was named in honor of Johann Metzger (1771–1844), a German copper engraver and art restorer from Staufen im Breisgau, in Baden-Württemberg, a fri ...

'' * ''

Metzgeria furcata ''Metzgeria furcata'', the forked veilwort, is a frequent liverwort growing on the bark of a wide range of tree and shrub species and occasionally on rocks. It is a slim, translucent thallose liverwort forming yellow-green mats of branches about ...

'' * ''

Metzgeria leptoneura ''Metzgeria'' is a genus of thalloid liverworts in the family Metzgeriaceae. Taxonomy The genus was named in honor of Johann Metzger (1771–1844), a German copper engraver and art restorer from Staufen im Breisgau, in Baden-Württemberg, a fri ...

'' * ''

Metzgeria myriopoda ''Metzgeria'' is a genus of thalloid liverworts in the family Metzgeriaceae. Taxonomy The genus was named in honor of Johann Metzger (1771–1844), a German copper engraver and art restorer from Staufen im Breisgau, in Baden-Württemberg, a fri ...

'' * ''

Metzgeria pubescens ''Metzgeria'' is a genus of thalloid liverworts in the family Metzgeriaceae. Taxonomy The genus was named in honor of Johann Metzger (1771–1844), a German copper engraver and art restorer from Staufen im Breisgau, in Baden-Württemberg, a fri ...

'' * ''

Metzgeria submarginata ''Metzgeria'' is a genus of thalloid liverworts in the family Metzgeriaceae. Taxonomy The genus was named in honor of Johann Metzger (1771–1844), a German copper engraver and art restorer from Staufen im Breisgau, in Baden-Württemberg, a fri ...

'' * ''

Metzgeria temperata ''Metzgeria'' is a genus of thalloid liverworts in the family Metzgeriaceae. Taxonomy The genus was named in honor of Johann Metzger (1771–1844), a German copper engraver and art restorer from Staufen im Breisgau, in Baden-Württemberg, a fri ...

'' * ''

Metzgeria uncigera ''Metzgeria'' is a genus of thalloid liverworts in the family Metzgeriaceae. Taxonomy The genus was named in honor of Johann Metzger (1771–1844), a German copper engraver and art restorer from Staufen im Breisgau, in Baden-Württemberg, a fri ...

References

Literature

*RADDI G. 1818. Jungermanniografia Etrusca. Memorie i Mathematica e di Fisica della Societa Italiana delle Scienze (Modena), 18: 14–56, plus tables. *Meagher, David (University of Melbourne Department of Botany), pers. comm.

External links

* * * Metzgeriales Liverwort genera {{Bryophyte-stub