Species Of Cheilolejeunea Research Articles

Cheilolejeunea sicilicula S. Fish & Glenny (Lejeuneaceae, Marchantiopsida), a newly described species from lowland forests of South Island, New Zealand

ABSTRACT Cheilolejeunea sicilicula S. Fish & Glenny, a new species of liverwort from lowland indigenous forest reserves in Westland and Western Nelson provinces in South Island, New Zealand, is described and illustrated. In New Zealand it is superficially similar to C. campbelliensis (Steph.) R. M. Schust., C. novaezelandiae R. M. Schust. and C. albovirens (Hook.f. & Taylor) E. A. Hodgs, which are all small-leaved species with leaves that range from 195 to 500 µm long. Cheilolejeunea sicilicula differs from these species in having a curved second tooth, and in having elongated cells along the antical free margin of the lobule. Molecular phylogenetic analyses resolve C. sicilicula as a member of the tropical section Cyrtolejeunea which has five extant species and a Miocene fossil species. This section was previously unknown in New Zealand. The addition of Cheilolejeunea sicilicula to the New Zealand flora brings the number of accepted New Zealand Cheilolejeunea species to 12, six of which are endemic.

<p><strong><em>Cheilolejeunea hodgettsii sp. nov. </em></strong><strong>with comments on other African members of sect. <em>Cyrtolejeunea.</em>―Notes on the bryophytes of Madagascar 1</strong></p>

A Cheilolejeunea species with peculiar leaf shape is described from Madagascar, as new to science, which belongs to Sect. Cyrtolejeunea. This encouraged the author to reinvestigate other African members of this section, and to transfer the former described Neurolejeunea breutelii var. africana into the genus of Cheilolejeunea sect. Cyrtolejeunea under the name of Cheilolejeunea shevockii and to re-establish the identity of Cheilolejeunea ulugurica. As a consequence, three species of the ten members of Sect. Cyrtolejeunea occur in Africa, while the genus Neurolejeunea remains restricted only to the Neotropics.

On a new species of Cheilolejeunea (Spruce) Steph. (Lejeuneaceae, Machantiophyta) from Amazonian savannas

During fieldwork to investigate bryophyte communities in disjunct areas of savannas in the Eastern Amazon, a new species of Cheilolejeunea was collected. The genus contains species mainly inhabiting tropical rain forests, which also occur in seasonal forests or xeromorphic forests, such as Cheilolejeunea adnata, Cheilolejeunea discoidea, and Cheilolejeunea rigidula. The aim of this paper is to describe and illustrate the new species, as well as to present comments on its morphology, taxonomy and distribution. The new species is characterized by profusely branched, creeping plants with leaves widely spreading to squarrose, imbricate, suborbicular to obovate with usually incurved, rounded to obtuse apex and mammillose leaf cells, often with a lenticular papilla on the dorsal surface. Further diagnostic characters, as well as comments on its distribution and similarities with related species, are given.

Cheilolejeunea rodneyi Bever. & Glenny (Lejeuneaceae, Marchantiopsida), a newly described species from lowland indigenous forest sites in the Tararua Ecological District, North Island of New Zealand.

Cheilolejeunea rodneyi Bever. & Glenny, a new species of liverwort from lowland indigenous forest reserves in the Tararua Ecological District near Wellington in the North Island of New Zealand is described and illustrated. In both morphology and phylogeny, it is closest to the recently-described C. morganii Bever. & Glenny, with which it shares monoicy, pycnolejeuneoid innovation leaf sequences, a pentacarinate perianth with long rostrum and absence of large botryoidal oil-bodies, but differs in having a single or two-celled uniseriate second tooth, a large extal lobule papilla, a cylindrical rostrum, oil-bodies with large, usually homogeneous segments, and the common presence of cladia. Its addition to the New Zealand flora brings the total species of Cheilolejeunea to 11, four of which are endemic.

Cheilolejeunea morganii Bever. & Glenny (Lejeuneaceae, Marchantiopsida), a newly described species from lowland indigenous forest sites in New Zealand

ABSTRACTIntroduction. Cheilolejeunea morganii Bever. & Glenny, a new species of Cheilolejeunea from a lowland forest habitat in eastern Taranaki in the North Island of New Zealand, is described and illustrated.Methods. DNA sequences were extracted from recently collected material at two locations and compared with those for species in a published phylogeny of the genus to establish the position of C. morganii. Photographic images were obtained of key features of the species for the preparation of illustrations for publication.Key results. Cheilolejeunea morganii does not match any species described for New Zealand or Australia. The sequencing results indicate its position in the phylogeny is close to Section Paroicae. A key to the New Zealand species of Cheilolejeunea is provided.Conclusions. In the Australasian flora, C. morganii is distinguished from other species by its combination of monoicy, pycnolejeuneoid gynoecial innovations, lobule length less than 50% lobe length and a multicellular second lobule tooth with 3–4 cells uniseriate. A case is presented for the recognition of the species as a New Zealand endemic.

Cheilolejeunea lamyisp. nov., a Fossil Lejeuneaceae from Miocene Dominican Amber

An inclusion in Miocene Dominican amber is described as Cheilolejeunea lamyi, sp. nov. The fossil resembles the extant Cheilolejeunea rigidula but differs in the partly subacute leaf lobes, often apiculate underleaf lobes, and the slightly more acute lobes of the bracteole. The two other Cheilolejeunea species in Dominican amber, Cheilolejeunea antiqua and C. suzannensis, have entire rather than bifid underleaves.

Gaolejeunea, a new genus from China and new member of subtribe Echinolejeuneinae (Lejeuneaceae, Marchantiophyta)

A narrowly endemic species known only from the type locality in Shangsi Co., Guangxi, as well as a peculiar member of the Chinese Lejeuneaceae, Cheilolejeunea gaoi has previously been treated as a species of Cheilolejeunea. However, the presence of Allorgella-type denticulations formed by two adjacent cells on leaf and underleaf margins, small ovate leaf lobules without distinct teeth, ental hyaline papilla, and finely segmented oil bodies all suggest that it belongs somewhere else. Maximum likelihood, maximum parsimony, and Bayesian analyses of a three marker dataset (nrITS, cpDNA rbcL and trnL−F) derived from 85 accessions of Lejeuneeae and 15 outgroup species revealed that C. gaoi belongs to subtribe Echinolejeuneinae. Based on the results of phylogenetic analyses, combined with morphological data, we suggest here that C. gaoi should be established as a new genus, Gaolejeunea. We strongly recommend in situ or ex situ conservation activity for this species based on the IUCN Red List criteria.

Three new species of Cheilolejeunea (Spruce) Steph. (Lejeuneaceae, Marchantiophyta) from Neotropics

Three new species of the genus Cheilolejeunea are described and illustrated: C. cyrtolejeuneoides sp. nov. and C. grosseoleosa sp. nov. both from Brazil, and C. azureomontana sp. nov. from Jamaica. Cheilolejeunea cyrtolejeuneoides is similar to C. holostipa and C. insecta but mainly differing by autoicous plants and deeply bifid underleaves; Cheilolejeunea grosseoleosa is characterized by dioicous plants, small size, strongly crenulate keel, and differs mainly from other species of the genus by its single large coarsely segmented oil body per cell, composed only of 4‒6 globules; Cheilolejeunea azureomontana is characterized by autoicous plants, leaves spreading, spathulate to slightly obovate leaf lobe, basal cells forming a poorly differentiated vitta, and cells toward margin obliquely arranged. The number of Cheilolejeunea species worldwide is estimated at 140–150.

Three new species of Cheilolejeunea (Spruce) Steph. (Marchantiophyta, Lejeuneaceae) from northern Brazil

Cheilolejeunea aracaensis sp. nov., Cheilolejeunea caracariense sp. nov., and Cheilolejeunea cuspidifera sp. nov. are described from Amazonas and Roraima states in northern Brazil. C. aracaensis differs from the other neotropical species in the genus by having the second and first lobule teeth elongated and paired, lacking subgynoecial innovations, a perianth with inflated ventral keels and inconspicuous rostrum. C. caracariensis is distinguished by its conical lobule, plane free margin, and a strongly papillose keel. C. cuspidifera is distinguished by being an irregularly dentate near the apex of the leaf lobe, second lobule tooth elongated and underleaves with cuspidate lobes.

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

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.

Chemosystematics of the Thai Liverwort Cheilolejeunea (Marchantiophyta, Lejeuneaceae)

Members of the liverwort genus Cheilolejeunea, on the basis of chemical data, have been divided into striatane- (I), trifarane- (II) and δ-lactone- (III) chemotypes. In this paper the sesquiterpenoids occurring in C. ceylanica from Thailand are described and the chemosystematics of Cheilolejeunea species are explored. Species belonging to type I produce striatane-type sesquiterpenoids, which have been found in many species of Lejeuneaceae and thus are considered to be one of the significant chemical markers of this family. However, to the best of our knowledge, the trifarane-type is not detected in any other liverworts. The lactone-type species produce chiroptical δ-lactones, with a milky odor.

Cheilolejeunea laciniata(Lejeuneaceae, Marchantiophyta), a new species from Southeastern Brazil

Cheilolejeunea laciniata sp. nov. (Lejeuneaceae) from Southeastern Brazil is described and illustrated. The species is easily recognized by the dentate to laciniate leaf margins, a feature present only in two other species of Cheilolejeunea, C. norisiae from Panama and Cuba, and C. lacerata from Brazil. A key summarizing the differences of the three species is presented.

Bryophytes of St Helena, South Atlantic Ocean. 6. Cheilolejeunea (Spruce) Schiffn. (Jungermanniales: Lejeuneaceae), including C. microscypha (Hook.f. & Taylor) M.Wigginton, comb. nov. and C. rotalis (Hook.f. & Taylor) M.Wigginton, comb. nov.

Two little known species of Cheilolejeunea, C. microscypha (Hook.f. & Taylor) M.Wigginton, comb. nov. (a reinstated St Helena liverwort), and C. rotalis (Hook.f. & Taylor) M.Wigginton comb. nov., endemic to St Helena, South Atlantic Ocean, are described and illustrated, and oil bodies of C. ascensionis (Hook.f. & Taylor) Grolle are newly described and illustrated.

Cheilolejeunea hyalomarginata, a remarkable new species of Lejeuneaceae (Marchantiophyta) from New Caledonia

The new species, Cheilolejeunea hyalomarginata (Lejeuneaceae) from New Caledonia, is described and illustrated. The species is easily distinguished from all other species of Cheilolejeunea by the hyaline denticulate margin of the leaf lobe. Further diagnostic characters include the entire underleaves, the lobular apex connate with 4–6 lobe cells, and the spinose, unicellular, strongly thick-walled lobular tooth with a very small lumen at the base.

Two new species of Cheilolejeunea (Spruce) Schiffn. (Lejeuneaceae) from Brazil: C. lacerata sp. nov. and C. rupestris sp. nov.

Two new species of Cheilolejeunea subgenus Strepsilejeunea from the state of Bahia, northeastern Brazil, are described and illustrated: Cheilolejeunea lacerata C. Bastos & Gradst. sp. nov. and Cheilolejeunea rupestris C. Bastos & Gradst. sp. nov. Cheilolejeunea lacerata is distinguished by its lacerated and irregularly dentate antical margin of the leaf lobe. The species is known only from southern Bahia where it occurs in fragments of evergreen rain forest. Cheilolejeunea rupestris was collected in 'campos rupestres' in the Chapada Diamantina, growing on rock. The outstanding features of this new species are the broad, four-cells-wide ventral merophytes, the reniform, shallowly bifid underleaves, and the recurved, obtuse to acute leaf apices. The species approaches C. fragrantissima (Spruce) Steph. and the two may be sister taxa. The similarity of the two species suggests that the separation between subgen. Cheilolejeunea and subgen. Strepsilejeunea may be artificial.

A new species of Cheilolejeunea (Spruce) Schiffn. from Panama

Cheilolejeunea (subgen. Strepsilejeunea) norisiae G. Dauphin & Gradst. sp. nov. is described and illustrated. The new species differs from other members of the genus Cheilolejeunea by the laciniate leaf margins and the large pre-apical tooth.

Cheilolejeunea gaoi(Hepaticae, Lejeuneaceae), a New Species from Guangxi, China

Abstract A new species, Cheilolejeunea gaoi (Hepaticae, Lejeuneaceae) from Guangxi, China, is described and illustrated. It differs from other Cheilolejeunea species in its marginal denticulation of the leaf lobe and of underleaves. These are formed by projecting corners of two adjacent cells rather than single projecting cells. The new species resembles the genus Pictolejeunea in plant habit, leaf cells, perianth shape, absence of gynoecial innovation, and structure of apex of leaf lobule. However, the former differs primarily in the marginal position of the hyaline papilla of the leaf lobule and the absence of ocelli in the leaf lobes and underleaves.

Taxonomic Notes and Phytogeography of Cheilolejeunea pluriplicata (Hepaticae, Lejeuneaceae)

Cheilolejeunea pluriplicata (Pearson) R. M. Schust. is a common species thought to be endemic to Africa. It is similar to Asian Cheilolejeunea khasiana (Mitt.) N. Kitag., however, it differs in having fusiform perianths with (6-)7-10 keels. Recent studies reveal the occurrence of C. pluriplicata in China (southern Yunnan) and Nepal. The structure of the sporophyte, elaters, and spores of C. pluriplicata agrees well with that in other species of Cheilolejeunea. A complete description and illustrations of C. pluriplicata are provided. Cheilolejeunea is a large and diverse genus of approximately 80 species (Thiers 1997) most of which are distributed in the subtropical and tropical regions, with only a few species extending to temperate regions. The genus comprises 16 species in China (So & Zhu 1996), 23 in Africa (Grolle 1995; Wigginton & Grolle 1996), 17 including varieties in Australia (Thiers 1997), 12 in Japan (Mizutani 1982), 9 in India (Asthana et al. 1995), 13 in western Melanesia (Grolle & Piippo 1984), and 21 in Borneo (Menzel 1988). Recently, several taxa have been transferred to Cheilolejeunea (Gradstein et al. 1993; Grolle & Reiner-Drehwald 1997; He 1995, 1996a,b, 1997a,b; Thiers & Gradstein 1989). During our studies of the Lejeuneaceae of Yunnan, we were surprised to find Cheilolejeunea pluriplicata (Pearson) R. M. Schust., which is a common African species previously known only from central and southern Africa. MATERIALS AND METHODS The Chinese materials of Cheilolejeunea pluriplicata were collected by Xing-Jiang Li and Shu-Ying Zeng in 1974 and 1980, respectively. Additional materials of C. pluriplicata were borrowed from JE. Specimens of other related species were collected by the first author, or borrowed from BM, FH, HSNU, IFP, KUN, and NICH. Materials for scanning electron microscope (SEM) studies were dehydrated in a desiccator, mounted on metal stubs, and then coated with gold. SEM micrographs were made with a JEOL 1200 EX scanning electron microscope. Representative specimens of Cheilolejeunea pluriplicata that were examined are as follows. CHINA. YUNNAN. Xishuangbanna, Menghai, Li 3361 (HSNU, IFP, KUN); Cangyuan, Zeng 80-1211 (HSNU, IFP, KUN). MADAGASCAR. TAMATAVE. Route du Chrome, Tixier 11657 (JE); TANANARIVE. au de Mantasoa, Onraedt 74.M.2274 (JE). NEPAL. Between Basantpur and Door Pani, Long 16457 (JE). SOUTH AFRICA. Kap-Prov., bei Stellenbosch, Langkloof nahe dem Jonkershoel-Tal. Perold SA 71b (JE).

<p><strong>Studies on Hong Kong <em>Cheilolejeunea </em>with two species new to China.</strong></p>

Five species of the genus Cheilolejeunea are reported from Hong Kong. Among them, Cheilolejeunea osumiensis (Hatt.) Mizut. and Cheilolejeunea ryukyuensis Mizut. are new to China. Cheilolejeunea intertexta (Lindenb.) Steph. is newly reported for China except Taiwan, and Cheilolejeunea trifaria (Reinw. et al.) Mizut. is documented for the first time for mainland China except Hainan and Taiwan. The detailed description and illustration of Cheilolejeunea osumiensis as well as the key to the five Cheilolejeunea species of Hong Kong are also presented.