Riccia


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Riccia

 

a genus of liverworts of the family Ricciaceae. The dichotomously branched thallus of basal and palisade tissue usually forms rosettes reaching 2 cm in diameter. The rosettes have linear or cordate segments, with rhizoids and amphigastria on the lower side. The palisade tissue consists of air chambers that often open to the top or of vertical rows of cells with air canals between them. Antheridia, archegonia, and a sporogonium (in the form of a rounded theca without a stalk or foot) are embedded in the upper part of the thallus. There are about 130 terrestrial or, less commonly, floating, species. They are distributed on all continents, most often in southern latitudes and the southern hemisphere. The USSR has about 20 species.

References in periodicals archive ?
La Riccia will be driving business growth and capturing market opportunities within Middle East and Africa including Turkey in the digital transformation and cloud domain.
In his new role, La Riccia will be driving business growth and capturing market opportunities within MEA including Turkey in the digital transformation and cloud domain, said a statement from the company.
It will also enable a more tailor-made support for the concerned regions to anticipate and manage the impact ", said Micaela Fanelli (IT/PES), mayor of Riccia in the province of Campobasso.
The ethereal extracts of the liverwort species growing in southern part of Turkey such as Riccia fluitans, Porella cordaeana, Porella platyphylla, Corsinia coriandrina, Mannia androgyna, Reboulia hemisphaerica, Plagiochasma rupestre, Targionia hypophylla were evaluated comparatively for the wound-healing activity.
Other herbaceous taxa from pseudomaquis samples include moderate amounts of nitrophilous elements suchs as Aster, Cardueae, Cichorioideae, Dipsacus fullonum, Rumex acetosella, Plantago lanceolata and Urtica dioica, as well as spores of some coprophilous non-pollen palynomorphs such as Coniochaeta, Riccia, Sordaria (maximum of 11%) and Sporormiella (Figure 4).
(2) Pero que, a diferencia de Leonardo da Vinci quien fue acusado de haber sodomizado a un joven de diecisiete anos, Machiavelli lo fue de haber sodomizado a una conocida prostituta de la epoca llamada Lucretia, mas conocida como "La Riccia".
The moss Didymodon tofaceus and the liverwort Riccia frostii were collected on floodplains.
Quando, nel 1946, Gil--fortunosamente salvatosi da una tragica conclusione delia sua disawentura bolognese--torno a Napoli con i suoi genitori e, per una serie di strane coincidenze, gli capito di andare ad abitare alia Villa Buono alia Riccia a Portici, gli si presentarono di nuovo le blatte come problema.
x x x x Gongylanthus scariosus x x x Lethocolea pansa x x x Phaeoceros laevis x Riccia bifurca x x Riccia crinita x x x Riccia crystallina Riccia lamellosa x Riccia nigrella x x x Riccia sorocarpa x x x x Targionia hypophylla Lichens Fruticose Cladia aggregata x x x Cladia corallazion x Cladonia cervicornis Neophyllis mucrolemma Siphula coriacea Teloschistes sieberiana x Thysanothecium scutellum Usnea scabrida subsp.
This phenomenon is confirmed through deforestation that favours the development of NPM type 207 or Glomus fasciculatum (fungal spore), present along the sequence, and by the development NPM of coprophilous affinity (Riccia sorocarpa, Podospora or type 55 a, Sporomiella or Sordaria type or types 113 and 368) which have a similar curve to that of nitrophyllous taxa.
Chojnacka, "Biosorption and bioaccumulation of microelements by Riccia fluitans in single and multi-metal system," Bioresource Technology, vol.