Abrahamczyk, S., Kessler, M., Putra, D.D., Waltert,M., Tscharntke, T. (2008): The value of differently managed cacao plantations for forest bird conservation in Sulawesi, Indonesia. Bird Conservation International 18: 349-362.

Aryanti, N.S., Bos, M. M., Kartawinata, K., Tjitrosoedirdjo, S. S., Guhardja, E., Gradstein, S. R. (2008): Bryophytes on tree trunks in natural forests, selectively logged forests and cacao agroforests in Central Sulawesi, Indonesia. Biol. Conserv. 141: 2516-2527.

Burghardt, M., Gradstein, S. R. (2008): A revision of Tylimanthus (Acrobolbaceae, Marchantiophyta) in tropical America, Africa and Macaronesia. Fieldiana, Botany, N.S. 47: 199-210.

Eckstein J, Burghardt, M. (2008): Die Moosflora des Alten Botanischen Gartens in Göttingen. Herzogia 21: 217-227.

Engel, J. J., Heinrichs, J. (2008): Studies of New Zealand Hepaticae. 39. Dinckleria Trevis. an older name for Proskauera Heinrichs and J. J. Engel. Cryptogamie, Bryol. 29: 193-194.

Gradstein, S. R. (2008): Epiphytes and deforestation in the tropics. Abhandlungen des Westfälischen Museums für Naturkunde 70: 417-424.

Gradstein, S.R. (2008): Annotated catalogue of liverworts and hornworts of the Galapagos Islands. Biblioth. Lichenol. 99: 143-162.

Gradstein, S. R. (2008): Epiphytes of tropical montane forests – impact of deforestation and climate change. Pp. 51-66 in: Gradstein, S. R., Homeier J., Gansert D. (eds.) The Tropical Mountain forest. Universitätsverlag Göttingen.

Gradstein, S. R., Burghardt, M. (2008): A new species of Odontoschisma (Cephaloziaceae, Marchantiophyta) from South America. Fieldiana, Botany, N.S. 47: 193-198.

Gradstein, S. R., Homeier J., Gansert D. (eds.) (2008): The Tropical Mountain forest – Patterns and Processes in a Biodiversity Hotspot. Universitätsverlag Göttingen, 219 pp.

Gradstein, S.R., Kessler, M., Lehnert, M., Abiy, M., Mandl, F., Makeschin, F., Richter, M. (2008): Vegetation, climate and soil of the unique Purdiaea forest of southern Ecuador. Ecotropica 14: 15-26.

Gradstein, S. R., Klatt, S., Normann, F., Weigelt, P., Willmann, R., Wilson, R. (eds.) (2008): Systematics 2008, Programm and Abstracts. Universitätsverlag Göttingen, 425 pp.

Günter, S., Cabrera, O., Weber, M., Stimm, B., Zimmermann, M., Fiedler, K., Knuth, J., Boy, J., Wilcke, W., Jost., S., Makeschin, F., Werner, F., Gradstein, S.R., Mosandl, R. (2008): Natural forest management in neotropical mountain rain forest – an ecological experiment. Ecological Studies 198: 347-359.

Hentschel, J., Davison, P. G., Heinrichs, J. (2008): Porella gracillima Mitt. (Jungermanniidae, Porellaceae) in Tennessee, with an illustrated key to the Porella species of North America north of Mexico. Fieldiana, Botany, N.S. 47: 183-191.

Herzog, S.K., Hennessey, B., Kessler M., García-Solíz, V.H. (2008): Distribution, natural history and conservation status of two endemics of the Bolivian Yungas, Bolivian Recurvebill Simoxenops striatus and Yungas Antwren Myrmotherula grisea. Bird Conservation International 18: 331-348.

Herzog, S. K., Kessler, M., Balderrama, J. A. (2008): A new species tyrannulet (Tyrannidae: Phyllomyias) from Andean foothills in northwest Bolivia. Auk 125: 265-276.

Homeier, J., Werner, F. A., Breckle, S-W., Gradstein, S. R., Richter, M. (2008): Potential vegetation and floristic composition of Andean forests in South Ecuador, with a focus on the Reserva San Francisco. Ecological Studies 198: 87-100.

Ilkiu-Borges, A. L., Gradstein, S. R. (2008): A new species of Cheilolejeunea (Spruce) Schiffn. (Lejeuneaceae) from Cerro de la Neblina, Venezuela. Nova Hedwigia 87: 521-528.

Janssen, T., Bystriakova, F., Rakotondrainibe, F., Coomes, D., Labat, J.-N., Schneider, H. (2008): Neoendemism in Madagascan tree ferns results from recent, coincident diversification bursts. Evolution 62: 1876-1889.

Kessler, M. (2008): A distinctive new species of Elaphoglossum (Dryopteridaceae) from lowland Bolivia. Bot. J. Linnean Soc. 157: 165-167.

Kessler, M., Jimenez, I., Krömer, T. (2008): Diversity and endemism of six plant groups in the Cordillera Mosetenes, Cochabamba, Bolivia. Revista Boliviana de Ecología y Conservación Ambiental 23: 15-26.

Kessler, M., Kluge J. (2008): Diversity and endemism in tropical montane forests. Pp. 35-50 in: Gradstein, S. R., Homeier J., Gansert D. (eds.) The Tropical Mountain forest. Universitätsverlag Göttingen.

Kessler, M., Smith, A. R. (2008): New species of grammitid ferns (Polypodiaceae, Polypodiopsida) from Bolivia. Organisms Div. Evol. 8: 167e1-e18.

Kluge, J., Bach, K., Kessler, M. (2008): Elevational distribution and zonation of tropical pteridophyte assemblages in Costa Rica. Basic and Applied Ecology 9: 35-43.

Kreier, H.-P., Rex, M., Weising, K., Kessler, M., Smith, A. R., Schneider, H. (2008): Inferring the diversification of the epiphytic fern genus Serpocaulon (Polypodiaceae) in South America using chloroplast sequences and amplified fragment length polymorphisms. Pl. Syst. Evol. 274: 1-16.

Kreier, H.-P., Zhang, X.-R., Muth, H., Schneider, H. (2008): The microsorioid ferns: inferring the relationships of a highly diverse lineage of Paleotropic epiphytic ferns (Polypodiaceae, Polypodiidae. Mol. Phyl. Evol. 48: 1155-1167.

Krömer, T., Jimenez, I. & Kessler, M. (2008): Diversity and vertical distribution patterns of vascular epiphytes in the Cordillera Mosetenes, Cochabamba, Bolivia. Revista Boliviana de Ecología y Conservación Ambiental 23: 27-38.

Krömer, T., Kessler, M., Lohaus, G. & Schmidt-Lebuhn, A. N. (2008): Nectar sugar composition in relation to pollination syndromes in Bromeliaceae. Pl. Biol. 10: 502-511.

La Torre-Cuadros, M. A., Linares-Palomino, R. (2008): Mapas y clasificación de vegetación en ecosistemas estacionales: un análisis cuantitavivo de los bosques secos de Piura. Revista Peruana de Biología 15: 31-42.

Lehnert, M. (2008): On the identification of Cyathea pallescens (Sodiro) Domin (Cyatheaceae): typification, reinstatements and new descriptions of common Neotropical tree ferns. Bot. J. Linn. Soc. 158: 621-649.

Lehnert, M., Kessler, M., Salazar, L.-I., Navarrete, H., Werner, F.A., Gradstein, S.R. (2008): Pteridophyta checklist - Reserva Biológica San Francisco (Prov. Zamora-Chinchipe, S. Ecuador). Pp. 59-68 in Liede-Schumann, S., Breckle, S.W. (Eds.) Provisional checklists of flora and fauna of the San Francisco valley and its surroundings (Reserva Biolócica San Francisco / Prov. Zamora-Chinchipe, southern Ecuador). Ecotropical Monogr. 4.

Linares-Palomino, R., Cardona, V., Soto, D., Herzog, S. K., Kessler, M. (2008): Tree community patterns along a deciduous to evergreen forest gradient in central Bolivia. Ecologia en Bolivia 43: 1-20.

Lozada, T., de Koning, G. H. J., Kessler, M., Klein, A.-M., Tscharntke, T. (2008): Geographical range size of tropical plant influences their response to anthropogenic activities. Diversity and Distributions 14: 59-68.

Ludwiczuk, A., Nagashima, F., Gradstein, S. R., Asakawa, Y. (2008): Volatile components from selected Mexican, Ecuadorian, Greek, German and Japanese liverworts. Natural Product Communications 3: 133-140.

Mandl, N., Lehnert, M., Gradstein, S. R., Kessler. M., Abiy, M., Richter, M. (2008): The unique Purdiaea nutans forest of southern Ecuador: abioic characteristics and cryptogamic diversity. Ecological Studies 198: 275-280.

Nöske, N., Hilt, N., Werner, F., Brehm, G., Fiedler, K., Sipman, H. J. & Gradstein, S. R. (2008): Disturbance effects on diversity in montane forest of Ecuador: sessile epiphytes vs. mobile moths. Basic and Applied Ecology 9: 4-12.

Reiner-Drehwald, M. E., Schäfer-Verwimp, A. (2008): On Inflatolejeunea, Lejeunea species with eplicate perianths and Lejeunea talamancensis sp. nov. from Costa Rica (Lejeuneaceae). Nova Hedwigia 87: 387-420.

Reiner-Drehwald, M. E. , Schäfer-Verwimp, A. (2008): Lejeunea oligoclada and L. rionegrensis (Lejeuneaceae) in tropical America: new data on morphology and geographical distribution. Nova Hedwigia 87: 175-184.

Salino, A., Almeida, T. E., Smith, A. R., Navarro-Gomez, A., Kreier, H.-P., Schneider, H. (2008): A new Microgramma (Polypodiaceae) from Brazil and recircumscription of the genus based on phylogenetic evidence. Systematic Botany 33: 630-635..

Schmidt-Lebuhn, A. N. (2008): Monophyly and phylogenetic relationships of Minthostachys (Labiatae, Nepetoideae) examined using morphological and nrITS data Pl. Syst. Evol. 270: 25-38.

Schmidt-Lebuhn, A. N. (2008): Revision of the genus Minthostachys (Labiatae). Mem. New York Bot. Gard. 98: 1-77.

Schmidt-Lebuhn, A. N., Fuchs, J., Kessler, M. (2008): Flow cytometric measurements do not reveal different ploidy levels in Minthostachys (Lamiaceae). Pl. Syst. Evol. 271: 123-128.

Schneider, H., Kreier, H.-P., Janssen, T., Hovenkamp, P. (2008): Phylogenetic relationships of the fern genus Christiopteris shed new ligh onto the classification and biogeography of drynarioid ferns. Bot. J. Linnean Soc. 157: 645-656.

Smith, A. R., Kessler, M. (2008): Sixteen new species of Thelypteris (Thelypteridaceae) from Bolivia. Brittonia 60: 49-62.

Smith, A. R., Pryer, K. M., Schuettpelz, E., Korall, P., Schneider, H., Wolf, P. G. (2008): Fern classification. Pp. 417-467. In: Haufler, C.H., Ranker, T. A. (eds.). Cambrige University Press

Soria A., R. W., Kessler, M. (2008): The influence of sampling intensity on the perception of the spatial distribution of tropical diversity and endemism: a case study of ferns from Bolivia. Diversity and Distributions 14: 123-130.

Sundue, M., Kessler, M. (2008): New species and new records of Terpsichore (Pteridophyta: Grammitidiaceae) from Bolivia. Organisms, Diversity and Evolution 8: 1-10.

Wagenitz, G. (2008): Deutsche Floren: Der Weg von Latein zum Deutsch, von Linné zum Natürlichen System. Feddes Repert. 119: 144-151.

Wagenitz, G., Kandemir, A. (2008): Two new species of the genus Psephellus (Compositae, Cardueae) from eastern Turkey. Willdenowia 38: 521-526.