scholarly journals Notes on Early Land Plants Today. 63. Validation of the family Phyllothalliaceae (Pallaviciniales, Jungermanniopsida, Marchantiophyta)

Phytotaxa ◽  
2014 ◽  
Vol 183 (4) ◽  
pp. 298 ◽  
Author(s):  
Tomoyuki Katagiri ◽  
Lars Söderström ◽  
Anders Hagborg ◽  
Matt Von Konrat

When Hodgson (1964) proposed the new family Phyllothalliaceae together with the initially monotypic genus Phyllothallia Hodgson (1964: 247) based on Phyllothallia nivicola Hodgson (1964: 247), she mentioned “This new family is not a splinter entity from any already recognized family, but is originated to contain a genus which in vegetative characters at least is completely different from any known genus. The characters of the family are those of the genus”. The first sentence specifies the features in which Phyllothalliaceae is different from the other families but not how these features differ and so it does not satisfy the requirement of Art. 38.1(a) for a description/diagnosis (see: Art. 38. 2. Ex. 4). Although Grolle (1972: 216) discussed the validity of the family and considered the second sentence fulfil the requirements for the valid publication, ICN (McNeill et al. 2012) allows a single description/diagnosis for monotypic genus and species only. Hence, the family Phyllothalliaceae lacked a description/diagnosis which was needed when proposed and it has never been validly published until now. In order to be able to use the name in the forthcoming world checklist of Hornworts and Liverworts (Söderström et al., in prep.), the family is validated here. Note that a Latin description is no longer needed under the current ICN (McNeill et al. 2012).

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
D.G. Shah ◽  
D.N. Mehta ◽  
R.V. Gujar

Bryophytes are the second largest group of land plants and are also known as the amphibians of the plant kingdom. 67 species of bryophytes have been reported from select locations across the state of Gujrat. The status of family fissidentaceae which is a large moss family is being presented in this paper. Globally the family consists of 10 genera but only one genus, Fissidens Hedw. has been collected from Gujarat. Fissidens is characterized by a unique leaf structure and shows the presence of three distinct lamina, the dorsal, the ventral and the vaginant lamina. A total of 8 species of Fissidens have been reported from the state based on vegetative characters as no sporophyte stages were collected earlier. Species reported from the neighboring states also showed the absence of sporophytes. The identification of different species was difficult due to substantial overlap in vegetative characters. Hence a detailed study on the diversity of members of Fissidentaceae in Gujarat was carried out between November 2013 and February 2015. In present study 8 distinct species of Fissidens have been collected from different parts of the state. Three species Fissidens splachnobryoides Broth., Fissidens zollingerii Mont. and Fissidens curvato-involutus Dixon. have been identified while the other five are still to be identified. Fissidens zollingerii Mont. and Fissidens xiphoides M. Fleisch., which have been reported as distinct species are actually synonyms according to TROPICOS database. The presence of sexual reproductive structures and sporophytes for several Fissidens species are also being reported for the first time from the state.


2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Mehta D. N. ◽  
Gujar R> V. ◽  
Shah D. G.

<p>Bryophytes are the second largest group of land plants and are also known as the amphibians of the plant kingdom. sixty seven species of<br />bryophytes have been reported from select locations across the state of Gujrat. The status of family fissidentaceae which is a large moss<br />family is being presented in this paper. Globally the family consists of 10 genera but only one genus, Fissidens Hedw. has been collected<br />from Gujarat. Fissidens is characterized by a unique leaf structure and shows the presence of three distinct lamina, the dorsal, the ventral<br />and the vaginant lamina. A total of 8 species of Fissidens have been reported from the state based on vegetative characters as no<br />sporophyte stages were collected earlier. Species reported from the neighboring states also showed the absence of sporophytes. The<br />identification of different species was difficult due to substantial overlap in vegetative characters. Hence a detailed study on the diversity<br />of members of Fissidentaceae in Gujarat was carried out between November 2013 and February 2015. In present study 8 distinct species<br />of Fissidens have been collected from different parts of the state. Three species Fissidens splachnobryoides Broth., Fissidens zollingerii<br />Mont. and Fissidens curvato-involutus Dixon. have been identified while the other five are still to be identified. Fissidens zollingerii<br />Mont. and Fissidens xiphoides M. Fleisch., which have been reported as distinct species are actually synonyms according to TROPICOS<br />database. The presence of sexual reproductive structures and sporophytes for several Fissidens species are also being reported for the first<br />time from the state.<br />Keywords: Bryophytes, Mosses, Fissidentaceae, Diversity.</p><p> </p><p><span>DOI: </span><a id="pub-id::doi" href="http://dx.doi.org/10.21756/cba.v1i1.11022">http://dx.doi.org/10.21756/cba.v1i1.11022</a></p>


Phytotaxa ◽  
2015 ◽  
Vol 208 (1) ◽  
pp. 97 ◽  
Author(s):  
Tamas Pócs ◽  
Rui-Liang Zhu ◽  
Elena Reiner-Drehwald ◽  
Lars Söderström ◽  
Anders Hagborg ◽  
...  

For the coming checklist of hornworts and liverworts (Söderström et al., in press) a few validations, transfers and synonymizations in the family Lejeuneaceae are still required. 


Nematology ◽  
2008 ◽  
Vol 10 (1) ◽  
pp. 9-14 ◽  
Author(s):  
George Poinar Jr ◽  
Hans Kerp ◽  
Hagen Hass

AbstractNematodes are one of the most abundant groups of invertebrates on the face of the earth. Their extremely poor fossil record hinders our ability to assess just when members of this group invaded land and first became associated with plants. This study reports fossil nematodes from the stomatal chambers of the Early Devonian (396 mya) land plant, Aglaophyton major. These nematodes, which are tentatively assigned to the order Enoplia, are described as Palaeonema phyticum gen. n., sp. n. in the new family Palaeonematidae fam. n. Diagnostic characters of the family are: i) cuticular striations; ii) uniform, cylindrical pharynx with the terminal portion only slightly set off from the remainder; and iii) a two-portioned buccal cavity with the upper portion bearing protuberances. The presence of eggs, juveniles and adults in family clusters within the plant tissues provide the earliest evidence of an association between terrestrial plants and animals and may represent an early stage in the evolution of plant parasitism by nematodes.


2019 ◽  
Vol 24 (6) ◽  
pp. 1063-1070
Author(s):  
Jeno Kontschán

A new monotypic genus, Ivoria taiensis gen. nov., sp. nov. (Mesostigmata: Uropodina: Uropodinychidae) is described on the basis of seven females collected in soil samples from Ivory Coast. The new genus has large and robust chelicerae, but it differs from the other Uropodina genera having similar chelicerae in several characters, which are presented in a comparative table. The new genus is placed in the family Urodinychidae based on its long setae h1, chelicerae with an internal sclerotized node, fixed digit of chelicerae apically smooth and devoid of apical processes, corniculi smooth.


2011 ◽  
Vol 25 (2) ◽  
pp. 143 ◽  
Author(s):  
Prashant P. Sharma ◽  
Carlos E. Prieto ◽  
Gonzalo Giribet

Among Opiliones, Afrotropical lineages constitute some of the least studied groups in comparison with those endemic to other biogeographic provinces. Based upon morphological evidence, we erect Pyramidopidae, fam. nov. to distinguish a group of Laniatores from the family Phalangodidae. We review evidence from recent molecular phylogenetic studies that corroborate the independence of Pyramidopidae, fam. nov. from previously described families and support its sister relationship to another largely Afrotropical group, the family Assamiidae. The monotypic genus Maiorerus Rambla, 1993 is transferred to Pyramidopidae, fam. nov. The new family comprises 12 genera geographically restricted to Africa and the adjacent Canary Islands. Interfamilial relationships of the derived Laniatores are discussed in the context of gross and genitalic morphology.


2014 ◽  
Vol 28 (2) ◽  
pp. 196 ◽  
Author(s):  
Thomas Wesener

Cyliosoma Pocock, 1895, the oldest available genus name for Australian giant pill-millipedes, is revised with a redescription of its type species, Sphaerotherium angulatum Butler, 1878. All 16 species of Epicyliosoma Silvestri, 1917 are transferred to Cyliosoma, together with two species, Sphaerotherium fraternum Butler, 1872 and S. marginepunctatum Karsch, 1881, which are redescribed here. A new phylogenetic analysis of the Sphaerotheriida was conducted using 100 morphological characters and including two Cyliosoma species and four recently described or redescribed species of the family Zephroniidae. Most character states are illustrated for Cyliosoma, including the first SEM images of a member of the genus. Cyliosoma is neither closely related to the South African Sphaerotherium, nor to the other Australian genus, Procyliosoma, and is here placed in a new family, Cyliosomatidae. The monotypic Australian genus Cynotelopus Jeekel, 1986 is also referred to the Cyliosomatidae. The current position of the Cyliosomatidae is in a trichotomy including the South African Sphaerotheriidae and the Malagasy–Indian Arthrosphaeridae.


1900 ◽  
Vol 32 (2) ◽  
pp. 30-33 ◽  
Author(s):  
Nathan Banks

In 1871, Thorell published his description of Rhagidia in a paper entitled, “Om Arachnider fran Spetsbergen och Beeren-Eiland.” He placed it in the family Eupodidœ, from the other genera of which it differed principally in the great size of the mandibles. In 1876, Cambridge, in his paper “On a new Order and some new Genera of Arachnida from Kerguelen's Land,” described Pœcilophysis as the type of a new family and a new order. He was unaware of Thorell's mite, yet there is but one prominent difference between them, Pœcilophysis is said to have eyes on the frontal tubercle. Neither of these authors gave any reference to any species of Koch's genus Scyphius, to which their forms bear a great resemblance. Koch described about a dozen species of this genus, many of which are doubtless only forms of one species. In the modern European literature, nothing is done with Koch's species of this genus, save by Oudemans (1897), who identifies four of the Kochian names. Oudemans, however, appears to be ignorant of the fact that there were several other names for this genus besides Scyphius, for he thinks, since Scyphius is preoccupied, that the genus must have a new name.


1996 ◽  
Vol 11 (1-2) ◽  
pp. 251-256
Author(s):  
Joseph D. Clinton

A description of a Family of Polyhedra is given where the parent forms are the five regular polyhedra. The facial planes of the parent forms are subdivided into right triangles and by a series of rearrangements are allowed to move out of plane thus creating new volumetric forms while maintaining the same surface area. The axes of symmetry of the parent polyhedra are preserved. One new form is less stable than the parent and the other is more stable than the parent; thus giving rise to a family of real stable, stable and not-so stable polyhedra. Illustrations of all fifteen polyhedra in the family are given along with tables describing several of their geometric properties. The influence of precision on geometrical stability will also be demonstrated as related to architectural applications.


Phytotaxa ◽  
2014 ◽  
Vol 183 (4) ◽  
pp. 287 ◽  
Author(s):  
Jiri Vana ◽  
Lars Söderström ◽  
Anders Hagborg ◽  
Matt Von Konrat
Keyword(s):  

Gymnomitriaceae Klinggräff (1858: 16) was thoroughly treated by Váňa et al. (2010). Since the publication, a series of papers have shown that the circumscription of the family and genera within the family must be revised.


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