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

Phytotaxa ◽  
2013 ◽  
Vol 152 (1) ◽  
pp. 50 ◽  
Author(s):  
YU-MEI WEI ◽  
Qiong He ◽  
S. ROBBERT GRADSTEIN ◽  
Laura V. Campos ◽  
Rui-Liang Zhu

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 The morphological affinity between Vitalianthus urubuensis and Cheilolejeunea is confirmed by our unpublished molecular data (ITS, trnG and trnL-F; Wei et al., in prep.)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.

Phytotaxa ◽  
2013 ◽  
Vol 112 (1) ◽  
pp. 16 ◽  
Author(s):  
ANDERS HAGBORG ◽  
LARS SÖDERSTRÖM ◽  
MATT VON KONRAT

 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.


Phytotaxa ◽  
2012 ◽  
Vol 65 (1) ◽  
pp. 58 ◽  
Author(s):  
ELIZABETH BROWN ◽  
LARS SÖDERSTRÖM ◽  
ANDERS HAGBORG ◽  
MATT VON KONRAT

Phytotaxa ◽  
2013 ◽  
Vol 113 (1) ◽  
pp. 1 ◽  
Author(s):  
SHIRLEY A. GRAHAM ◽  
TACIANA B. CAVALCANTI

Cuphea sect. Euandra subsect. Oidemation comprises a non-monophyletic group of species defined by possession of a fire-resistant xylopodium. The xylopodium is a frequent feature of plants occurring in the seasonally and ecologically dry cerrados and savannas of South America. Subsect. Oidemation has diversified particularly in these habitats in eastern Brazil and adjacent Paraguay. Twenty species and five varieties are recognised: eleven species are endemic to Brazil; one each is endemic to Paraguay and Florida, USA; and seven are distributed in Brazil and adjacent areas of Bolivia, Paraguay, Uruguay and/or Argentina. Their morphology, including pollen and seed morphology, and chromosome numbers are reviewed. The presence of at least three major pollen types and two base chromosome numbers suggests the subsection is para- or polyphyletic; phylogenetic information based on molecular data for species of the subsection is limited. Diverse diploid, tetraploid, and hexaploid chromosome numbers point to polyploidy as an important mechanism of speciation in this group. A key to the species is accompanied by descriptions, illustrations and distribution maps.The subsection is lectotypified by C. retrorsicapilla and lectotypes are designated for C. acicularis, C. aspera, C. confertiflora, C. crulsiana, C. emarginata, C. enneanthera, C. excoriata, C. ferruginea, C. ferruginea var. acuminata, C. hyssopoides, C. remotifolia, C. retrorsicapilla, C. sperguloides, C. spermacoce var. angustata, and C. spermacoce var. elongata. A new combination is made for C. retrorsicapilla var. enneanthera.


Phytotaxa ◽  
2014 ◽  
Vol 162 (4) ◽  
pp. 232 ◽  
Author(s):  
S. ROBBERT GRADSTEIN ◽  
SILVIA CALVO ARANDA ◽  
ALAIN VANDERPOORTEN

The genus Iwatsukia (Cephaloziaceae) is a small tropical liverwort genus of 4 species, Iwatsukia exigua from Sabah and New Guinea, Iwatsukia bifida from Venezuela and Costa Rica, the pantropical Iwatsukia jishibae, and Iwatsukia spinosa from Venezuela (Schuster 1968, 2002). Vilnet et al. (2012) showed that Iwatsukia jishibae is nested in Odontoschisma (Dumortier 1831: 68) Dumortier (1835: 19) and Váňa et al. (2013) made the necessary nomenclatural transfer. In the framework of a phylogenetic and taxonomic study of Odontoschisma and related genera which is in preparation, we were able to confirm the position of Iwatsukia jishibae in Odontoschisma. In addition, we found that Iwatsukia bifida is nested in Odontoschisma, forming a separate lineage within the genus together with Iwatsukia jishibae. We also found that Iwatsukia exigua, the type species of Iwatsukia, is a synonym of Iwatsukia jishibae. We therefore transfer the genus Iwatsukia to Odontoschisma.


Zootaxa ◽  
2008 ◽  
Vol 1775 (1) ◽  
pp. 1 ◽  
Author(s):  
HELEN M. SMITH

Through discovery of their males, females described as Homalopoltys Simon (Araneidae) are found to be congeneric with Dolichognatha O.P.-Cambridge (Tetragnathidae). Some of the character states seen in Homalopoltys (type species H. incanescens Simon) do not fit within the current diagnosis of Dolichognatha so the potential transfer is tested using the data matrix of Hormiga et al. (1995). It is found that the synonymy of Homalopoltys with Dolichognatha is justified according to current terms of reference. Both described Homalopoltys species were known only from Sri Lanka. The male of D. incanescens (Simon) (NEW COMBINATION) is described for the first time, and the range of this species is extended to north-eastern Australia. Dolichognatha albida (Simon) (NEW COMBINATION) is redescribed and new material is reported from Thailand but the species is still known only from females. Dolichognatha mandibularis (Thorell), with similar morphology to D. incanescens, is also redescribed but is only known from a single male (Sumatra). Two new species are described: D. deelemanae sp. nov. is from Kalimantan and D. raveni sp. nov. is from north-eastern Australia and New Guinea. The character states that unite the genus Dolichognatha are discussed and some potential new character systems are put forward. Some of the fresh specimens of D. albida and D. incanescens show that reflective tapeta are present in the secondary eyes and the abdominal morphology of these and the newly described species differs from that of other known Dolichognatha species.


Phytotaxa ◽  
2013 ◽  
Vol 97 (2) ◽  
pp. 63 ◽  
Author(s):  
YU-MEI WEI ◽  
RUI-LIANG ZHU

  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.


Zootaxa ◽  
2021 ◽  
Vol 4933 (3) ◽  
pp. 324-340
Author(s):  
ROGÉRIO BERTANI ◽  
MARLUS QUEIROZ ALMEIDA

The new genus Yanomamius n. gen. from Brazilian and Venezuelan Amazon is described, with three new species from Brazil: Y. franciscoi n. sp. (type species), Y. raonii n. sp., and Y. neblina n. sp. The enigmatic Venezuelan species described as Holothele waikoshiemi Bertani & Araújo, 2006 and presently included in Guyruita Guadanucci et al. (2007) is transferred to the new genus, making the new combination Y. waikoshiemi (Bertani & Araújo, 2006) n. comb. Yanomamius n. gen. is closely related with the schismatotheline genera Schismatothele Karsch, 1879 and Euthycaelus Simon, 1889 sharing as probable synapomorphies a group of short spines on the retrolateral distal tibia of male palp and the shape of bulb. They differ by the position of the spines in a compact group instead of in rows and by a tapering embolus. Females differ from Schismatothele and Euthycaelus by the spermathecae weakly sclerotized. A series of recent phylogenies based on molecular data suggested a close relationship between schimatothelines and psalmopoeines. The male tibia I of Yanomamius n. gen. species have a series of ridges or a single protuberance behind the tibial apophyses that resemble those of psalmopoeines and strengthen the idea of close relationship of the two subfamilies. 


Phytotaxa ◽  
2014 ◽  
Vol 162 (4) ◽  
pp. 236 ◽  
Author(s):  
YU-MEI WEI ◽  
Rui-Liang Zhu ◽  
S. ROBBERT GRADSTEIN

Lejeunea huctumalcensis Lindenb. & Gottsche in Gottsche et al. (1847: 762), a widespread neotropical species, is one of the most unusual taxa in Lejeunea Libert (1820: 372) owing to the variable gynoecial innovation type which may be lejeuneoid  or pycnolejeuneoid, the presence of ocelli in leaf lobes and the perianth keels usually with bifid or more ramified laciniae (Reiner-Drehwald & Ilkiu-Borges 2007). In other species of this large genus, innovations are invariably lejeuneoid, ocelli are lacking and perianth keels do not produce bifid or more ramified laciniae. The generic position of Lejeunea huctumalcensis has long been controversial and the species has been assigned to at least six different genera, including Ceratolejeunea (Spruce 1884: 77) Jack & Stephani (1892: 16), Hygrolejeunea (Spruce 1884: 77) Schiffner (1893: 124), Lejeunea, Otigoniolejeunea (Spruce 1884: 77) Schiffner (1893: 125), Pycnolejeunea (Spruce 1884: 246) Schiffner (1893: 124), and Trachylejeunea (Spruce 1884: 180) Schiffner (1893: 126) (Reiner-Drehwald & Ilkiu-Borges 2007). The latter authors showed that L. huctumalcensis is an older name for L. xiphotis Spruce (1884: 227), the type species of Lejeunea subg. Otigoniolejeunea Spruce (º Otigoniolejeunea (Spruce) Schiffn.), and thus L. huctumalcensis automatically becomes a member of this group. Otigoniolejeunea was provisionally accepted by Reiner-Drehwald & Ilkiu-Borges (2007) as a subgenus of Lejeunea, with L. huctumalcensis as its only species. Other recent authors, however, have treated Otigoniolejeunea as a mere synonym of Lejeunea (e.g., Grolle 1983; Singh 2013).


2011 ◽  
Vol 43 (4) ◽  
pp. 331-343 ◽  
Author(s):  
Robert LÜCKING ◽  
Eimy RIVAS PLATA ◽  
Klaus KALB ◽  
Ralph S. COMMON ◽  
Alejandrina BARCENAS PEÑA ◽  
...  

AbstractThe new genus Halegrapha is introduced, with six species (five new species and one new combination) from Australia, the Philippines, Malaysia, Kenya, Mexico, and the United States: H. chimaera Rivas Plata & Lücking (type species; Philippines), H. floridana Common & Lücking (United States: Florida), H. intergrapha Hale ex Lücking (Malaysia), H. kenyana Kalb & Lücking (Kenya), H. mexicana A. B. Peña & Lücking (Mexico), and H. mucronata (Stirt.) Lücking (Australia). The genus resembles Graphis morphologically in the strongly carbonized, black lirellae and white-grey thallus strongly encrusted with calcium oxalate crystals, but has a Phaeographis-type hymenium (clear in two species) and ascospores, making it a ‘chimera’ between the two genera. Molecular data suggest the genus to be closely related to Phaeographis and allies but genetically distinct from any of the genera currently recognized, including Platygramme.


2020 ◽  
Vol 78 ◽  
pp. 33-40
Author(s):  
Hui Geng ◽  
Cheng-De Li ◽  
Jason Mottern ◽  
Andrew Polaszek

Idiococcobius Hayat, syn. nov., is synonymised with Coccobius Ratzeburg, based on morphological and molecular data from a new species of Coccobius from Malaysian Borneo. The new species is sufficiently similar morphologically to the type species of Idiococcobius to place it unambiguously within that genus, but molecular data from the new species, and a reassessment of the morphology of Idiococcobius, indicate synonymy of the two genera. Idiococcobius encarsoides Hayat is therefore transferred to Coccobius; resulting in the new combination: Coccobius encarsoides (Hayat), comb. nov.Coccobius islandicus Geng & Polaszek, sp. nov, is described from morphology and DNA sequence data.


Sign in / Sign up

Export Citation Format

Share Document