Notes on Early Land Plants Today. 39. <i>Microlejeunea indica</i> (Marchantiophyta, Lejeuneaceae)

The systematic position of the pantropical genus Microlejeunea Stephani (1888: 61) has been debated. Grolle (1995) first defined the precise generic concept of Microlejeunea, which was also confirmed by molecular studies (Wilson et al. 2004; Dong et al. 2013). This concept has recently been followed by various authors (e.g., He & Zhu 2011; Lavocat & Schäfer-Verwimp 2011; Thouvenot et al. 2011; Marline et al. 2012; Thiers et al. 2012). Microlejeunea is well characterized and easily separated from Lejeunea Libert (1820: 372) by the presence of ocelli in the leaf lobe, transverse section of stem consisting of seven cortical cells and three medullary cells, and keel of female bract usually winged (Wei & Zhu 2013). Lejeunea indica Udar & Awasthi (1981: 345), known only from India (Udar & Awasthi 1981; Joshi 1995; Zhu & Long 2003; Dey et al. 2008), has all essential characters of Microlejeunea. Thus, a new combination is needed.

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Notes on Early Land Plants Today. 48. Drepanolejeunea longifolia, a new synonym of Drepanolejeunea angustifolia (Marchantiophyta, Lejeuneaceae)

Phytotaxa ◽

10.11646/phytotaxa.162.4.7 ◽

2014 ◽

Vol 162 (4) ◽

pp. 234 ◽

Cited By ~ 1

Author(s):

QIONG HE ◽

RUI-LIANG ZHU

Keyword(s):

Asexual Reproduction ◽

Transverse Section ◽

Land Plants ◽

Cortical Cells ◽

Basal Disc ◽

New Synonym ◽

Early Land ◽

Medullary Cells

Drepanolejeunea (Spruce 1884: 186) Stephani (1891: 209), with about 110 currently accepted species, is the fourth largest genus of Lejeuneaceae (following Cololejeunea (Spruce 1884: 291) Stephani (1891: 208), Lejeunea Libert (1820: 373), and Cheilolejeunea (Spruce 1884: 251) Stephani (1890: 284) (He et al. 2012). Although Drepanolejeunea is a diverse pantropical genus, it is characterized and easily distinguished from other related genera by the 1) erect to widely divergent lobes of underleaves without a basal disc, 2) transverse section of stem with 7 cortical cells and 3 medullary cells, 3) presence of ocelli at least at base of leaf lobe), 4) proximal hyaline papilla, 5) pycnolejeuneoid leaf sequence of gynoecial innovation (if present), 6) inflated perianths usually with various projections near apex, and 7) asexual reproduction by means of cladia or caducous leaves (Zhu & So 2001; He et al. 2012; Pócs et al., 2013). The genus has been classified in a separate subtribe, Drepanolejeuneinae Gradstein (2013: 14), together with Vitalianthus Schuster & Giancotti (1993: 447).

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Notes on Early Land Plants Today. 69. Circumscription of Plagiochilaceae (Marchantiophyta) with a preliminary infrageneric subdivision of Plagiochila

Phytotaxa ◽

10.11646/phytotaxa.208.1.8 ◽

2015 ◽

Vol 208 (1) ◽

pp. 75 ◽

Cited By ~ 5

Author(s):

Lars Söderström ◽

Anders Hagborg ◽

Matt Von Konrat

Keyword(s):

Current Knowledge ◽

Land Plants ◽

New Combinations ◽

Molecular Studies ◽

Nomen Novum ◽

Early Land

Plagiochilaceae is here circumscribed to include 10 genera, Acrochila, Chiastocaulon, Dinckleria, Pedinophyllopsis, Pedinophyllum, Plagiochila, Plagiochilidium, Plagiochilion, Pseudolophocolea and Xenochila. For the forthcoming world checklist of hornworts and liverworts we here summarize the current knowledge and identify the sections of Plagiochila that are currently recognized by morphological and molecular studies. Plagiochila is provisionally divided into 28 sections based on recent morphological and molecular studies. Plagiochila ecuadorica and Plagiochila sciophila subsp. ciliigera are new combinations, Plagiochila umbrosioides is a nomen novum.

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Notes on Early Land Plants Today. 10. A new combination in Acromastigum

Phytotaxa ◽

10.11646/phytotaxa.65.1.15 ◽

2012 ◽

Vol 65 (1) ◽

pp. 58 ◽

Cited By ~ 1

Author(s):

ELIZABETH BROWN ◽

LARS SÖDERSTRÖM ◽

ANDERS HAGBORG ◽

MATT VON KONRAT

Keyword(s):

Land Plants ◽

New Combination ◽

Early Land

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Notes on Early Land Plants Today. 46. Transfer of Vitalianthus urubuensis (Marchantiophyta, Lejeuneaceae) to Cheilolejeunea

Phytotaxa ◽

10.11646/phytotaxa.152.1.5 ◽

2013 ◽

Vol 152 (1) ◽

pp. 50 ◽

Cited By ~ 3

Author(s):

YU-MEI WEI ◽

Qiong He ◽

S. ROBBERT GRADSTEIN ◽

Laura V. Campos ◽

Rui-Liang Zhu

Keyword(s):

Type Species ◽

Atlantic Coast ◽

Molecular Data ◽

Land Plants ◽

New Combination ◽

Proximal Side ◽

Eastern Brazil ◽

Monophyletic Lineage ◽

North Eastern ◽

Early Land

Vitalianthus was established by Schuster & Giancotti (1993) based on Drepanolejeunea bischleriana K.C.Pôrto & Grolle (1987: 301), which is endemic to the Atlantic coast of north-eastern Brazil. This genus is related to Drepanolejeunea (Spruce 1884: 76) Schiffner (1893: 119) (Gradstein et al. 2001, Gradstein & Costa 2003, He et al. 2012a, b) and characterized by the 1) hyaline papilla at the proximal side of lobule tooth, 2) unbroken basal vitta of 3-7 ocelli in leaf lobes, 3) bilobed underleaves with upright lobes, 4) gynoecial innovations with a pycnolejeuneoid leaf sequence, 5) perianth keels unarmed, and 6) absence of specialized cladia (He et al. 2012a). In addition to the type species, this genus currently also contains Vitalianthus urubuensis Zartman & Ackerman (2002: 267) from the Amazonian rainforests of Brazil and Colombia (Zartman & Ackerman 2002, Mota de Oliveira & ter Steege 2013, Campos et al. in prep.), and V. guangxianus Zhu et al. (2012a: 32). Our examination of type material and recent collections of Vitalianthus urubuensis from Brazil and Colombia reveals that the hyaline papilla of the leaf lobule is distal as in Cheilolejeunea (Spruce 1884: 79) Schiffner (1893: 118) (Fig. 1E,F). The moniliate, unbroken vitta of ocelli in the leaf lobes, one of the most important features of Vitalianthus, also occurs in some species of Cheilolejeunea, e.g. in Cheilolejeunea falsinervis (Sande Lacoste 1854: 321) Schuster & Kachroo (1961: 56) from Asia and Australasia. It thus appears that V. urubuensis is morphologically more similar to Cheilolejeunea than to Vitalianthus. The morphological affinity between Vitalianthus urubuensis and Cheilolejeunea is confirmed by our unpublished molecular data (ITS, trnG and trnL-F; Wei et al., in prep.) which show that V. urubuensis and several species of Cheilolejeunea form a monophyletic lineage. Therefore, the following new combination is necessary.

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Microlejeunea subaphanes, a new synonym of Cheilolejeunea decursiva (Marchantiophyta, Lejeuneaceae) new to America

Phytotaxa ◽

10.11646/phytotaxa.188.5.8 ◽

2014 ◽

Vol 188 (5) ◽

pp. 292 ◽

Cited By ~ 2

Author(s):

Lei Shu ◽

Yu-Mei Wei ◽

Xia-Fang Cheng ◽

Rui-Liang Zhu

Keyword(s):

Rare Species ◽

Transverse Section ◽

Type Specimen ◽

Critical Study ◽

Tropical Africa ◽

Cortical Cells ◽

Phylogenetic Studies ◽

New Synonym ◽

Molecular Phylogenetic ◽

Medullary Cells

Recent molecular phylogenetic studies have confirmed that Microlejeunea (Spruce 1884: 286) Stephani (1888: 61) is a good genus which is closely related to Lejeunea Libert (1820: 372) (Dong et al. 2013; Wei 2013). Microlejeunea is distinguished from Lejeunea by the presence of ocelli in the leaf lobe, transverse section of the stem consisting of seven cortical cells and three medullary cells, and keel of the female bract usually winged (Wei & Zhu 2013). Although about 50 species are currently accepted in Microlejeunea, most of them are still poorly known. Microlejeunea subaphanes Herzog (1950: 70) is a very rare species known only from the type specimen collected in São Paulo, Brazil (Herzog 1950; Gradstein & Costa 2003), and its identity is not clear (Bischler et al. 1963). Our examination of its type specimen showed that M. subaphanes does not belong to Micrololejeunea because of the distal hyaline papilla of the leaf lobule, pycnolejeuneoid gynoecial innovation, keel of female bract not winged, transverse section of the stem consisting of 7−9 cortical cells and 4−5 medullary cells, and absence of ocelli in the leaf lobe (Fig. 1). Further critical study revealed that M. subaphanes is conspecific with Cheilolejeunea decursiva (Sande Lacoste 1855: 522) Schuster (1963: 112), which is widespread in tropical Africa and rare in Asia (Borneo, Java, Sri Lanka), Australia and Oceania (Fiji, Hawaii) (Zhu & Lai 2005).

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Morphological variation and the relationship with host leaves in the epiphyllous liverwort Cololejeunea chenii Tixier (Marchantiophyta: Lejeuneaceae)

Phytotaxa ◽

10.11646/phytotaxa.408.3.7 ◽

2019 ◽

Vol 408 (3) ◽

pp. 222-226

Author(s):

SHU-WEN TU ◽

ZUN DAI ◽

XIA TANG ◽

LU-YAN TANG ◽

TAO PENG ◽

...

Keyword(s):

Morphological Variation ◽

Transverse Section ◽

Dorsal Lobe ◽

Cortical Cells ◽

Running Water ◽

Generic Concept ◽

Extreme Habitats ◽

The Relationship

Cololejeunea (Spruce 1884: 291) Stephani (1891: 208), with over 400 published binominals, is the largest genus of Lejeuneaceae Cavers (1910: 291) and the most species of the genus are distributed in the tropical and subtropical regions (Zhu & So 2001, Yu et al. 2013). These usually small sized liverworts grow preferably in extreme habitats, such as on the surface of living leaves, on twigs, or in running water (Gradstein et al. 2003). The currently accepted generic concept of the genus is based on its incubous foliation, leaves consisting of a dorsal lobe and a ventral lobule, Lejeunea-type branching, lack of underleaves, and transverse section of stem comprising of 5(–8) cortical cells and 1 medullary cell (Yu et al. 2013, and references therein).

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Notes on Early Land Plants Today. 42. Validation of Nanomarsupella (Gymnomitraceae, Marchantiophyta)

Phytotaxa ◽

10.11646/phytotaxa.112.1.3 ◽

2013 ◽

Vol 112 (1) ◽

pp. 16 ◽

Cited By ~ 1

Author(s):

ANDERS HAGBORG ◽

LARS SÖDERSTRÖM ◽

MATT VON KONRAT

Keyword(s):

Type Species ◽

New Genus ◽

Land Plants ◽

New Combination ◽

New Subgenus ◽

Early Land

Schuster (1978) described Marsupella xenophylla together with his new subgenus Nanomarsupella stating they were valid as generico-specific descriptions (ICN Art. 38.5; McNeill et al. 2012). However, as it was not described with a new genus but instead with new subgenus it is not validly described. However, the species is regarded as validly described here. Schuster (1996) then intended to elevate the subgenus to a genus but as the proposed basionym is not valid and no description was provided, his new genus is invalid as well as his proposed new combination of type species.

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Notes on Early Land Plants Today. 40. Notes on Cephaloziellaceae (Marchantiophyta)

Phytotaxa ◽

10.11646/phytotaxa.112.1.1 ◽

2013 ◽

Vol 112 (1) ◽

pp. 1 ◽

Cited By ~ 4

Author(s):

JIŘÍ VÁŇA ◽

LARS SÖDERSTRÖM ◽

ANDERS HAGBORG ◽

MATT VON KONRAT

Keyword(s):

Broad Sense ◽

Land Plants ◽

New Combinations ◽

New Synonyms ◽

The Family ◽

Molecular Studies ◽

Early Land ◽

Made In

The family Cephaloziellaceae is here defined in a very broad sense based mainly on molecular studies and includes morphologically diverse elements. Necessary new combinations are made in addition to some transfers and new synonyms in Cylindrocolea and Cephaloziella.

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