Udar R 1956
On two specis of Riccia new to the Indian flora
Current Science 25: 232-233

Udar R 1957
On the synonymy of some Indian species of Riccia
Current Science 25: 20-22

Udar R 1957
Riccia crozalzii Levier and Riccia warnstorfii Limpr. from India
Current Science 26: 287-288

Udar R 1959
Genus Riccia in India - IV. A new Riccia, Riccia pandei Udar sp. nov. from Garhwal with a note on the species of the genus from the West Himalayan territory
Journal of the Indian Botanical Society 38: 146-159

Udar R 1961
Genus Riccia in India V. A new Riccia, R. reticulata Udar sp. nov., from Pilani with note on the species of Riccia from the Central India zone, Gangetic plains, Punjab and Rajasthan
Bull. Bot. Soc. Univ. Sagar 13: 46-55

Udar R 1965
Riccia grollei Udar nom. nov. a correction for Riccia tuberculata Pande aet Udar from India
Current Science 34: 126

Udar R 1978
Cephalozia kashyapii Udar nom. nov. from eastern Himalayas
Geophytology 8: 133

Udar R, Asthana AK 1985
A new Anthoceros from Nagaland
Journal of the Indian Botanical Society 64: 303-305

Udar R, Awasthi US 1981
A new species of Lejeunea from India
Cryptogamie: Bryologie, Lichénologie 2: 345-348

Udar R, Awasthi US 1981
The genus Archilejeunea (Spruce) Schiffn. in India
Geophytology 11: 72-79

Udar R, Awasthi US 1982
Acrolejeunea sikkimensis (Mizut.) Gradst. in the Western Himalayas
Lindbergia 7: 109-112

Udar R, Awasthi US 1982
The genus Schiffneriolejeunea (Hepaticae) in India
Lindbergia 8: 55-59

Udar R, Awasthi US 1985
A new species of Lopholejeunea (Spruce) Schiffn. from India
Bulletin of the Botanical Survey of India 25: 174-176

Udar R, Awasthi US, Shaheen F 1983
A new species of Lopholejeunea (Spruce) Schiffn. from India
Lindbergia 9: 34-36

Udar R, Chandra S 1964
A new species of Plagiochasma, P. pauriana Udar et Chandra, from Pauri, Gahrval, India
Revue Bryologique et Lichénologique 33: 213-216

Udar R, Chandra S 1965
On two new species of Mannia, M. foreaui Udar et Chandra and M. perssonii Udar et Chandra, with a note on the genus and its Indian species
Canadian Journal of Botany 43: 147-160

Udar R, Chandra S 1966
On a new species of Calobryum, C. indicum Udar et Chandra from Darjeeling, India
Revue Bryologique et Lichénologique 33: 555-559

Udar R, Chandra S 1977
A new species of Notothylas Sull., N. pandei Udar et Chandra from India
Geophytology 7: 142-146

Udar R, Chandra V 1964
On the occurrence of branched female receptacles in Marchantia cf. grisea Burgeff
Current Science 33: 254-255

Udar R, Gupta A 1983
Differentiation of the genus Targionia L. in India-II. The east Himalayan and South Indian complex and description of a new species of Targionia
Geophytology 13: 83-87

Udar R, Gupta A 1984
A new Riccia (Mich.) L. from Deoban Western Himalayas, India
In: Proceedings of the V Indian Geophytological Confernece, Lucknow 14-16 November, 1983, Special Publication pp. 307-311

Udar R, Kumar A 1982
Studies in East Himalayan Hepaticae II. The genus Chandonanthus Mitt. new to India
Geophytology 12: 59-64

Udar R, Kumar A 1982
Two new species of Cephaloziella from India
Lindbergia 8: 30-34

Udar R, Kumar A 1983
A remarkable Cylindrocolea Schust. from India
Lindbergia 8: 181-184

Udar R, Kumar A 1984
Studies in Indian Jungermanniaceae II. Jungermannia (Plectocolea) tetragona Lindneb. from Andaman Islands with a note on its distribution in India
Journal of the Indian Botanical Society 62: 357-360

Udar R, Kumar A 1985
The family Cephaloziellaceae in south India
Geophytology 15: 141-145

Udar R, Kumar A 1987
The genus Lethocolea from India
Lindbergia 12: 103-105

Udar R, Kumar D 1976
Genus Cephalozia in Eastern Himalayas
Geophytology 6: 35-45

Udar R, Kumar D 1982
A new Haplomitrium from India
Journal of the Indian Botanical Society 61: 73-79

Udar R, Kumar D 1982
The genus Radula in India
Journal of the Indian Botanical Society 61: 177-182

Udar R, Nath V 1973
Studies in South Indian Hepaticae 3. Cephalozia siamensis Kitagawa - a new record from India
Bulletin of the Botanical Survey of India 15: 149-151

Udar R, Nath V 1976
A new species of Cephaloziella Spruce, C. magna Udar et Nath. sp. nov. from Sheetlakhet, Almora (Western Himalayas) India
Geophytology 7: 50-53

Udar R, Shaheen F 1982
A new Folioceros from South India
Geophytology 12: 78-80

Udar R, Shaheen F 1983
Porella chinensis (St.) Hatt. var. hattori var. nov. from Himalayas
Miscellanea Bryologica et Lichenologica 9: 146-148

Udar R, Shaheen F 1983
Porella hattorii sp. nov. from India
Lindbergia 9: 70-72

Udar R, Singh DK 1977
Studies in East Himalayan Hepaticae I. The genus Trichocolea Dum.
Geophytology 7: 65-72

Udar R, Singh DK 1978
Cyathodium indicum Udar et Singh, sp. nov. from Western Himalayas India
Journal of Bryology 10: 139-142

Udar R, Singh DK 1979
Nothothylas dissecta, a hornwort new to India
The Bryologist 82: 625-628

Udar R, Singh DK 1979
Notothylas pfleidereri sp. nov. from Mangalore, India
Lindbergia 5: 28-30

Udar R, Singh DK 1980
An interesting Notothylas from Brasil
Miscellanea Bryologica et Lichenologica 8: 173-178

Udar R, Singh DK 1981
Further observations on Notothylas pfleidereri Udar et Singh
Lindbergia 7: 66-68

Udar R, Singh DK 1981
Notothylas khasiana Udar et Singh sp. nov. from Shillong, India
Journal of the Indian Botanical Society 60: 112-117

Udar R, Srivastava G 1983
A new Cololejeunea from India
Miscellanea Bryologica et Lichenologica 9: 137-139

Udar R, Srivastava G 1985
Cololejeunea (Pedinolejeunea) kashyapii sp. nov. from Karnataka, India
Geophytology 15: 64-66

Udar R, Srivastava SC 1970
A new species of Metzgeria from India
Revue Bryologique et Lichénologique 37: 361-365

Udar R, Srivastava SC 1971
A new species of Cyathodium Kunze, C. denticulatum Udar et Srivastava sp. nov. from Darjeeling (E. H.), India
Geophytology 1: 165-169

Udar R, Srivastava SC 1972
A new species of Fossombronia Raddi, F. foreaui Udar et Srivastava from Kodai Kanal (Palni Hills) South India
Nova Hedwigia 47: 463-468

Udar R, Srivastava SC 1973
On a species of Riccardia, R. santapaui Udar et Srivastava from Chindwara (Madhya Pradesh), India
Revue Bryologique et Lichénologique 39: 155-161

Udar R, Srivastava SC 1983
Rare and endangered liverworts of India
In: Jain SK, Rao RR (eds.), An Assessment of Threatened Plants of India (Proceedings of Seminar, Sept. 14.-17, 81). Naini Tal: Kumaon University

Udar R. & D. K. Singh 1981
Recent concepts in the taxonomy of the genus Notothylas
In: Contemporary trends in plant sciences. (Ed. SC Verma). (Kalyani: New Delhi) pp. 162-174

Udar R. & DK Singh 1979
On a new species of Notothylas Sull. From Western Ghats, India (1)
Revue Bryologique et Lichénologique 45: 201-208

Udar, R. & A. K. Asthana 1985
Anthoceros bharadwajii - a new species from India
Proceedings of the Indian National Science Academy. Part B, Biological Sciences 51: 483-488

Udar, R. & A. Kumar 1980
A new Cephaloziella from India
Miscellanea Bryologica et Lichenologica 8: 137-139

Udar, R. & A. Kumar 1982
A new Chonecolea from India
The Bryologist 85: 315-318

Udar, R. & A. Kumar 1983
A new Frullania from India
Miscellanea Bryologica et Lichenologica 9: 192-194

Udar, R. & Awasthi, U. S. 1982
The genus Drepanolejeunea St. in India
Journal of the Hattori Botanical Laboratory 53: 419-437

Udar, R. & Chandra, S. 1960 [1961]
Enzymes of Hepaticae. II. On the enzymes in Riccia discolor L. et L.
Journal of the Hattori Botanical Laboratory 23: 85-92

Udar, R. & Chandra, V. 1965
Morphology and life history of Plagiochasma intermedium L. et G.
Journal of the Hattori Botanical Laboratory 28: 75-93

Udar, R. & D. K. Singh 1976
A new Cyathodium from India
The Bryologist 79: 234-238

Udar, R. & D. K. Singh 1981
A new species of the genus Notothylas Sull., N. himalayensis Udar et Singh, from India
Journal of Bryology 11: 451-457

Udar, R. & D. K. Singh 1981
Some new combinations under Phaeoceros Proskauer
Geophytology 11: 257-258

Udar, R. & F. Shaheen 1982
A new Porella, P. chinensis (St.) Hatt. var. crispata, var. nov. from Himalayas
Miscellanea Bryologica et Lichenologica 9: 74-76

Udar, R. & F. Shaheen 1982
Marchantia kashyapii sp. nov. from south India
Indian Journal of Botany 5: 1-6

Udar, R. & G. Srivastava 1982
Two new species of Cololejeunea from peninsular India
Journal of Bryology 12: 227-231

Udar, R. & Jain, A. 1983
Polymorphism in Asterella wallichiana (Lehm. et Lindenb.) Grolle from India
Journal of the Indian Botanical Society 62: 361-366

Udar, R. & Jain, A. 1984
Liverworts of Kerala - I. Marchantiales
Indian Journal of Forestry 7: 300-304

Udar, R. & Kumar, A. 1981
Genus Notoscyphus Mitt. in India
Journal of the Hattori Botanical Laboratory 49: 247-260

Udar, R. & Kumar, R. 1983
Radula pandei, a new Hepatic from Southern India
Lindbergia 9: 133-136

Udar, R. & Srivastava, S. C. 1983
Reproductive biology and some Indian liverworts
Phytomorphology 33: 37-46

Udar, R. & Srivastava, S. C. 1984
Scanning electron microscopy of spores of some Indian liverworts
Journal of the Hattori Botanical Laboratory 56: 97-103

Udar, R. & U. S. Awasthi 1979
A new species of Leptolejeunea from India
Miscellanea Bryologica et Lichenologica 8: 115-117

Udar, R. & V. Nath 1976
A new species of Cephaloziella Spruce, C. magna Udar et Nat sp. nov. from Sheetla Khet, Almora (Western Himalayas) India
Geophytology 6: 105-107

Udar, R. & V. Nath 1978
A new species of Jubula Dum. from India
Miscellanea Bryologica et Lichenologica 8: 49-52

Udar, R. & V. Nath 1981
Frullania hattoriantha sp. nov. from India
Miscellanea Bryologica et Lichenologica 9: 44-47

Udar, R., Srivastava, S. C. & Srivastava, G. 1983
Observations on endemic liverwort taxa from India. I. Reproductive biology and SEM details of spores in Stephensoniella brevipedunculata Kash.
Journal of the Hattori Botanical Laboratory 54: 321-330

Udar, R., U. S. Awasthi & F. Shaheen 1982
A new Caudalejeunea from India
The Bryologist 85: 329-331

Ulvinen T 2007
Laatokan Karjalan Suomen alueen sammalien alustava luettelu
Bryobrotherella 10: 17-25

Ulvinen T, Syrjänen K, Anttila S 2002
Suomen sammalet - levinneisyys, ekologia ja uhanalaisuus [Bryophytes of Finland: distribution, ecology and red list status]
Suomen ymperistö 560: 1-354

Underwood LM 1884
Descriptive catalogue of the North American Hepaticae, north of Mexico
Bulletin of the Illinois State Laboratory of Natural History 2: 1-133

Underwood LM 1888
Some undesribed hepaticae from California
Botanical Gazette. Crawfordsville, Chicago 13: 112-114

Underwood LM 1889
Notes on our Hepaticae. I. Northern Species
Botanical Gazette. Crawfordsville, Chicago 14: 191-198

Underwood LM 1890
A new North American Lejeunea
Bulletin of the Torrey Botanical Club 17: 258-259

Underwood LM 1890
The distribution of hepaticae of North America
Proc. Amer. Assoc. Advancement of Sci. 39: 298-304

Underwood LM 1891
A preliminary list of Pacific Coast Hepaticae
Zoe 1: 361-367

Underwood LM 1892
A few additions to the hepatic flora of the Manual region
Bulletin of the Torrey Botanical Club 19: 299-301

Underwood LM 1892
Recent work in systematic hepaticology
Botanical Gazette. Crawfordsville, Chicago 17: 218-220

Underwood LM 1892
The Hepaticae of Labrador
Bulletin of the Torrey Botanical Club 19: 268-270

Underwood LM 1894
Notes on Hepaticae- II
Botanical Gazette. Crawfordsville, Chicago 19: 273-278

Underwood LM 1894
Report of the botanical division of the Indiana State Biological survey
Proceedings of the Indiana Academy of Science 1893: 13-67

Underwood LM 1895
Notes on our Hepaticae - III. The distribution of North American Marchantiaceae
Botanical Gazette. Crawfordsville, Chicago 20: 59-71

Underwood LM 1896
Notes on our Hepaticae IV. The genus Fossombronia
Botanical Gazette. Crawfordsville, Chicago 21: 67-71

Underwood LM 1896
The genus Cephalozia in North America
Bulletin of the Torrey Botanical Club 23: 381-394

Une, K. 1998
Bryophytes as teaching materials
Hikobia 12: 373-379
In Japanese with English abstract

Une, K., Y. Tateishi & N. Nishimura 1998
Bryophytes of the Tsurugatayama Hill (Kurashiki-shi, Okayama-ken, SW-Honshu, Japan)
The Bulletin of Research Institute of Natural Sciences, Okayama University of Science 24: 3-6
In Japanese with English abstract

Unger F 1862
Wissenschaftliche Ergebnisse einer Reise in Griechenland und in den jonischen Inseln
Vienna

Uniyal, P. L. 1998
Cytogenetics of bryophytes
In: Chopra, R. N. (ed.), Topics in Bryology. Allied Publishers, New Delhi, India pp. 125-164

Uniyal, P. L. 1999
Role of bryophytes in conservation of ecosystems and biodiversity
The Botanical magazine of Delhi University Botanical Society 49: 101-115

Uotila, P. 2002
Aquatic flora of Lake Pintele (South Häme, S Finland), with Najas tenuissima
Lutukka 18: 118-130
In Finnish with English summary; includes Riccia fluitans and Ricciocarpos natans

Uotila, P., Niemelä, T. & Virtanen, V. 2005
Accessions to the Botanical Museum of the Finnish Museum of Natural History, University of Helsinki, in 2004
Memoranda Societatis pro Fauna et Flora Fennica 81: 111-11414

Uotila, P., T. Niemalä & S. Piippo 2000
Accessions to the Botanical Museum of the Finnish Museum of Natural History, University of Helsinki in 1999
Memoranda Societatis pro Fauna et Flora Fennica 76: 65-68

Uotila, P., T. Niemelä & S. Piippo 1998
Accessions to the Botanical Museum of the Finnish Museum of Natural History, University of Helsinki, in 1997
Memoranda Societatis pro Fauna et Flora Fennica 74: 93-96

Uotila, P., T. Niemelä & S. Piippo 1999
Accessions to the Botanical Museum of the Finnish Museum of Natural History, University of Helsinki, in 1998
Memoranda Societatis pro Fauna et Flora Fennica 75: 53-56

Uotila, P., T. Niemelä & S. Piippo 2002
Accessions to the Botanical Museum of the Finnish Museum of Natural History, University of Helsinki, in 2000
Memoranda Societatis pro Fauna et Flora Fennica 77: 13-17

Uotila, P., T. Niemelä & S. Piippo 2002
Accessions to the Botanical Museum of the Finnish Museum of Natural History, University of Helsinki, in 2001
Memoranda Societatis pro Fauna et Flora Fennica 78: 63-66

Uotila, P., T. Niemelä & V. Virtanen 2003
Accessions to the Botanical Museum of the Finnish Museum of Natural History, University of Helsinki, in 2002
Memoranda Societatis pro Fauna et Flora Fennica 79: 79-82
1894 bryophytes added in 2002

Urbanek H 1966
Zespoly lesne wojewódzwa lódzkiego ze szczególnym uwzglednieniem mzakow. Cz. IV. Przeglad mszaków w wyróznionych zespolach lesnych - Forest associations of the province of Lodz with special reference to Bryophyta. Part. IV. A survey of the bryophytes occurring in forest associations
Fragmenta Floristica et Geobotanica 12: 151-178

Urdíroz Áriz, A. & A. Ederra Indurain 1999
Brioflora recolonizadora de dos bosques de Navarra (N España) sometidos a fuegos controlados
Publicaciones de Biología de la Universidad de Navarra, Serie Botánica 12: 59-84

Urdíroz Áriz, A. & A. Ederra Indurain 1999
[Abstract] Corología, ecologa, estrategias y formas de vida de la brioflora post-fuego en un carrascal de Navarra (N. España). XIII Simposio de Botánica Criptogámica, Libro de Resúmenes
Universidad Complutense, Madrid, Spain p. 174

Uribe J, Aguirre C, J 1995
Las especies colombianas del género Symphyogyna (Hepaticae: Pallaviciniaceae)
Caldasia 17: 429-457

Uribe J, Aguirre J 1997
Clave paraa los generos de hepáticas de Colombia
Caldasia 19: 13-27

Uribe M J 2004
Estudios en ejemplares tipo del género Frullania. III. Sobre F. meridana Steph. y F. setigera Steph. (Jubulaceae - Hepaticae)
Tropical Bryology 25: 29-34

Uribe M,, J. 1999
Nuevo registro del género Symphyogyna (Hepaticae, Pallaviciniaceae) para Colombia
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales (supl. esp.) 23: 119-121

Uribe M., J. 2002
[Abstract] Estudios en el subgénero Meteoriopsis del género Frullania
In: Rangel Ch., J. O., J. Aguirre C. & M. G. Andrade C. (eds.), Libro de Resúmenes VIII Congreso Latinoamericano de Botánica/II Congreso Colombiano de Botánica. Universidad Nacional de Colombia, División Bibliotecas, Bototá, Colombia p. 77

Uribe M., J. 2004
Type studies on Frullania subgenus Meteoriopsis (Hepaticae). II. On F. apollinarii and F. paranensis
Caldasia 26: 89-93

Uribe M., J. 2004
Type studies on Frullania subgenus Meteoriopsis (Hepaticae). IV. A new species from the Galapagos Islands
Cryptogamie, Bryologie 25: 295-299
New: Frullania darwinii

Uribe M., J. 2005
Monografia del subgenero Meteoriopsis del género Frullania (Jubulacea, Hepaticae)
Universidad National de Colombia. Doctorado en Biologia

Uribe M., J. 2006
Type studies on Frullania subgenus Meteoriopsis (Hepaticae). V. Frullania dulimensis sp. nov. from Colombia
Cryptogamie, Bryologie 27: 309-312
New: Frullania dulimensis sp. nov.

Uribe M., J. 2008
Monograph of Frullania subgenus Meteoriopsis (Frullaniaceae, Marchantiophyta)
Caldasia 30(1): 49-94

Uribe M., J. & Gradstein, S. R. 1998
Catalogue of the Hepaticae and Anthocerotae of Colombia
Bryophytorum Bibliotheca 53: 1-99

Uribe M., J. & O. Orrego 2001
Modelos de distribución de abundancias en comunidades de briófitos
Caldasia 23: 261-267

Uribe M., J. & S. R. Gradstein 1999
Estado del conocimiento de la flora de hepáticas de Colombia
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales 23(87): 315-318

Uribe-M J, Gradstein R 2003
Type studies on Frullania subgenus Meteoriopsis (Hepaticae). I. The lectotypification of the genus Frullania, F. subgen. Thyopsiella and F. subgen. Meteoriopsis, and some species transferred from subgen. Meteoriopsis to subgen. Thyopsiella
Cryptogamie, Bryologie 24: 193-207

Urmi E 1996
Bericht über arbeitstage 1995 im Unterengandin
Meylania 10: 14-20

Urmi E 1996
Welche überrachungen bryofloristische standard-aufnehmen neben ihrem bekannten nutzen noch zu beiten haben
Meylania 10: 10-11

Urmi E 2001
Due brioflore a confronto: affinità e differenze
Braun-Blanquetia 31: 19-26

Urmi E, Bisang I, Geissler P, Hürlimann H, Lienhard L, Müller N, Schmid-Grob I, Schnyder N, Thöni L 1991
Rote Liste der gefährdeten und seltenen Moose der Schweiz
Bern: Bundesamt für Umwelt, Wald und Landschaft 56 pp.

Urmi, E. 1983
Tetralophozia filiformis (Steph.) comb. nov. in Europa
Journal of Bryology 12: 393-401

Urmi, E. 1984
Zur Moosflora des Alpenraumes
Botanica Helvetica 94: 177-188

Urmi, E. 1999
Über die relative Grösses von Arealen bei Kryptogamen und Phanerogamen
Haussknechtia Beiheft 9: 377-389

Urmi, E. & N. Schnyder 2000
Bias in taxon frequency estimates with special reference to rare bryophytes in Switzerland
Lindbergia 25(2-3): 89-100
Analysis of the data from the Swiss bryophyte mapping project revealed bias in frequency estimates. Data based on a systematic survey of Switzerland allow a reliable measurement of the relative frequency of common taxa. The degree of rarity of uncommon taxa, however, is difficult to assess with these data alone. Further information from non-systematic sampling and from the literature was used for the comparison of old and new frequency estimates. Different types of bias and their causes are discussed and illustrated by distribution maps of twelve taxa. Bias mostly originates in methodological problems, neglect, and uneven knowledge of the taxa and the study area. Elimination of such bias is essential in a species conservation context

Urmi, E., N. Schnyder & N. Müller 1999
[Abstract] Do regional and global distribution patterns in bryophytes correlate?
XVI International Botanical Congress - Publisher not given, St. Louis p. 329

Urmi, Edwin & Norbert Schnyder 2007
Mapping bryophytes - a review
Lindbergia 32(2): 40
Distribution maps are used for biogeography, biodiversity, conservation and global change issues, and for phylogeographical purposes. Since 1887 bryophyte maps have become more and more important. Standardized methods of recording guarantee an even survey of geographical regions. An appropriate map scale and style are both essential for the production of good distribution maps. Seven complete atlases for all bryophytes on a national or international level are currently available

Urville, Jules Sebastian Cesar Dumont d' 1845-1853
Voyage au Pôle sud et dans l'Océanie sur les Corvettes l'Astrolabe et la Zelée
Voyage au Pole Sud et dans l'Oceanie sur les Corvettes l'Astrolabe el la Zelee, Execute par Ordre du Roi Pendant les Annees 1837-1838-1839-1840 sous le Commandement de M. J. Dumont d'Urville. Paris
1845-1853 - see TL2 for details