Acebey, A., Kessler, M., Maass, B. L. & Krömer, T. (2006): Aráceas y bromeliáceas en bosques andinos de Bolivia. Pp. 434-448 in Moraes, R. M., Øllgaard, B., Kvist, L. P, Borchsenius, F., Balslev, H. (eds) Botánica Económica de los Andes Centrales. Universidad Mayor de San Andrés, Plural Editores, La Paz..

Bastos, J. P. & Gradstein, S. R. (2006): Two new species of Cheilolejeunea (Spruce) Schiffn. from Brazil: C. lacerata sp. nov. and C. rupestris sp. nov. J. Bryol. 28: 133-138.

Burghardt, M., Gradstein, S. R. & Vana, J. (2006): Discovery of the African liverwort genus Cephalojonesia (Cephaloziellaceae) in Mexico. J. Hattori Bot. Lab. 100:35-40.

Davison, P. G., Smith, D., Feldberg, K., Lindner, M. & Heinrichs, J. (2006): Plagiochila punctata (Jungermanniopsida: Plagiochilaceae) in Tennessee, new to North America. Bryologist 109: 242-246.

Feldberg, K. & Heinrichs, J. (2006): A taxonomic revision of Herbertus (Jungermanniidae: Herbertaceae) in the Neotropics based on nuclear and chloroplast DNA and morphology. Bot. J. Linnean Soc. 151: 309-322.

Gottschlich, G., Garve, E., Heinrichs, J., Renker, C., Müller, J. & Wucherpfennig, D. (2006): Zur Ausbreitungsdynamik der Pilosellinen (Hieracium subgen. Pilosella, Asteraceae) in Niedersachsen. Braunschweiger Naturkundl. Schr. 7: 545-567.

Gradstein, S. R. (2006): The lowland cloud forest of French Guiana – a liverwort hotspot. Cryptogamie, Bryol. 27: 141-152.

Gradstein, S. R. (2006): Stephani's Species Hepaticarum revisited. Willdenowia 36: 557-563.

Gradstein, S. R., Krömer, T. & Velasquez, A. (2006): On the use of plant indicators in forest resource assessment. Pp. 21-35 in (Spitta, A., ed.) Proc. DAAD Symp "Las relaciones cientificas mexico-alemanes - situation actual y perspectives". Mexico.

Gradstein, S. R., Wilson, R., Ilkiu-Borges, A. L. & Heinrichs, J. (2006): Phylogenetic relationships and neotenic evolution of Metzgeriopsis (Lejeuneaceae) based on chloroplast DNA sequences and morphology. Bot. J. Linnean Soc. 151: 293-308.

Grundmann, M., Schneider, H., Russell, S. J. & Vogel, J. C. (2006): Phylogenetic relationships of the moss genus Pleurochaete Lindb. (Bryales, Pottiaceae) based on chloroplast and nuclear markers. Organisms, Diversity and Evolution 6: 33-45.

Hartmann, F. A., Wilson, R., Gradstein, S. R., Schneider, H. & Heinrichs, J. (2006): Testing hypotheses on species delimitations and disjunctions in the liverwort Bryopteris (Jungermanniopsida: Lejeuneaceae). Int. J. Pl. Sci. 167: 1205-1214.

Hauck, M., Hofmann, E. & Schmull, M. (2006): Site factors determining epiphytic lichen distribution in a dieback-affected spruce-fir forest on Whiteface Mountain, New York: microclimate. Ann. Bot. Fennici 43: 1-12.

Hauck, M., Paul, A. & Spribille, T. (2006): Uptake and toxicity of manganese in epiphytic cyanolichens. Environm. Exp. Bot. 56: 216-224.

Heinrichs, J. (2006): Molecular phylogeny and biogeography of Plagiochila (Jungermanniidae: Plagiochilaceae). Plant Genome: Biodiversity and Evolution, Vol. 2B, pp. 433-458, Science Publ.

Heinrichs, J., Lindner, M., Groth, H., Hentschel, J., Feldberg, K., Renker, C., Engel, J.J., von Konrat, M., Long, D. G. & Schneider, H. (2006): Goodbye or welcome Gondwana ? - insights into the phylogenetic biogeography of the leafy liverwort Plagiochila with a description of Proskauera, gen. nov. (Plagiochilaceae, Jungermanniales). Plant Syst. Evol. 258: 227-250.

Heinrichs, J., Rycroft, D. S., Feldberg, K., Lindner, M. & Hartmann, F. A. (2006): The systematic position of Plagiochila surinamensis inferred from nrDNA sequences, morphology and phytochemistry. J. Hattori Bot. Lab. 100: 135-142.

Hentschel, J., Wilson, R., Burghardt, M., Zündorf, H.-J., Schneider, H. & Heinrichs, J. (2006): Reinstatement of Lophocoleaceae (Jungermanniopsida) based on chloroplast gene rbcL data: exploring the importance of female involucres for the systematics of Jungermanniales. Plant Syst. Evol. 258: 211-226.

Hentschel, J., Zündorf, H.-J., Hellwig, F. H., Schäfer-Verwimp, A. & Heinrichs, J. (2006): Taxonomic studies in Chiloscyphus Corda (Jungermanniales: Lophocoleaceae) based on nrITS sequences and morphology. Pl. Syst. Evol. 262: 125-137.

Herzog, S.K. & Kessler, M. (2006): Local vs. regional control of species richness: a new approach to test for competitive exclusion at the community level. Global Ecol. Biogeogr. 15: 163-172.

Hu, S., Dilcher, D. L., Schneider, H. & Jarzen, D. M. (2006): Eusporangiate ferns from the Dakota formation, Minnesota, USA. Int. J. Pl. Sci. 167: 579-589.

Janssen, T. (2006): A moulding method to preserve tree fern trunk surfaces including remarks on the composition of tree fern herbarium specimens. Fern Gazette 17: 351-363.

Janssen, T., Rakotondrainibe, F. (2006): A revision of the fern familiy Cyatheaceae in the Mascarene Islands. Adansonia, sér. 3, 28:213-241.

Kessler, M. (2006): Bosques de Polylepis. Pp. 110-120 in Moraes, R. M., Oelgard, B., Kvist, L. P., Borchsenius, F. & Balslev, H. (eds) Botánica Económica de los Andes Centrales. Universidad Mayor de San Andrés, Plural Editores, La Paz.

Kessler, M. & Mickel, J. T. (2006): Nineteen new species of Elaphoglossum (Dryopteridaceae, Pteridophyta) from Bolivia. Brittonia 58: 93-118.

Kessler, M. & Schmidt-Lebuhn, A. N. (2006): Taxonomic and distributional notes on Polylepis (Rosaceae). Org. Divers. Evol. 6: 67-70.

Kessler, M. & Smith, A. R. (2006): Megalastrum (Dryopteridaceae – Pteridophyta) in Bolivia, with description of six new species. Amer. Fern J. 96: 31-44.

Kessler, M. & Smith, A. R. (2006): Five new species of Asplenium (Aspleniaceae) from Bolivia. Candollea 61: 305-313.

Kessler, M., Smith, A. R. & Lehnert, M. (2006): Four new species of Selaginella (Selaginellaceae – Pteridophyta) from Bolivia. Edinburgh J. Bot. 63: 85-93.

Kluge, J. & Kessler, M. (2006): Fern endemism and its correlates: contribution from an elevational transect in Costa Rica. Diversity and Distributions 12: 535-545.

Kluge, J., Kessler, M. & Dunn, R. (2006): What drives elevational patterns of diversity? A test of geometric constraints, climate, and species pool effects for pteridophytes on an elevational gradient in Costa Rica. Global Ecology and Biogeography 15: 358-371.

Korall, P., Conant, D. S., Schneider, H., Udea, K., Nishida, H. & Pryer, K. M. (2006): On the phylogenetic position of Cystodium: it's not a tree ferns - it's a polypod!. Amer. Fern J. 96: 45-53.

Korall, P., Pryer, K. M., Metzgar, J., Schneider, H. & Conant, D. S. (2006): Tree ferns: monophyletic groups and their relationships as revealed by four protein-coding plastic loci. Mol. Phyl. Evol. 39: 830-845.

Kreier, H.-P. & Schneider, H. (2006): Phylogeny and biogeography of the staghorn fern genus Platycerium (Polypodiaceae, Polypodiidae). Amer. J. Bot. 93: 217-225.

Kreier, H.-P. & Schneider, H. (2006): Reinstatement of Loxogramme dictyopteris, based on phylogenetic evidence, for New Zealand endemic fern, Anarthropteris lanceolata. Australian Syst. Bot. 19: 309-314.

Krömer, T. & Kessler, M. (2006): Filmy ferns (Hymenophyllaceae) as high-canopy epiphytes. Ecotropica 12: 57-63.

Krömer, T., Kessler, M. & Herzog, S. K. (2006): Distribution and flowering ecology of bromeliads along two climatically contrasting elevational transects in the Bolivian Andes. Biotropica 38: 183-195.

Lehnert, M. (2006): Two new tree ferns (Cyatheaceae) from southern Ecuador. Brittonia 58: 4-6.

Lehnert, M. (2006): The Cyatheaceae and Dicksoniaceae (Pteridophyta) of Bolivia. Brittonia 58: 229-244.

Lehnert, M. (2006): New species and records of tree ferns (Cyatheaceae, Pteridophyta) from the northern Andes. Organisms Divers. Evol. 6: 321-322.

Leon-Yanez, S., Gradstein, S. R. & Wegener, C. (2006): Catalogue of the liverworts and hornworts of Ecuador. Herbario QCA, Quito.

Nagalingum, N. S., Schneider, H., Skakuj, M. & Pryer, K. M. (2006): Comparative morphology of reproductive structures in heterosporous water ferns and a reevaluation of the sporocarp. Int. J. Pl. Sci. 167: 805-815.

Paul, A. & Hauck, M. (2006): Effects of manganese on chlorophyll fluorescence in epiphytic cyanolichens. Flora 201: 451-460.

Reiner-Drehwald, M. E. (2006): Type studies on neotropical Lejeuneaceae (Jungermanniopsida). Cheilolejeunea and Lepidolejeunea. Nova Hedwigia 83: 473-482.

Schäfer-Verwimp, A., Wilson R., Yandún S., Feldberg K., Burghardt, M., Vána, J. & Heinrichs, J. (2006): Additions to the bryophyte flora of Ecuador. Cryptogamie, Bryol. 27: 313-332.

Schmidt-Lebuhn, A. N. (2006): A list of references to C.C. Epling’s taxonomical works on the genera of American Labiatae. Candollea 61: 71-82.

Schmidt-Lebuhn, A. N. (2006): One new and one rediscovered species of Clinopodium (Labiatae) from Peru. Edinburgh J. Bot. 63: 73-80.

Schmidt-Lebuhn, A.N., Kessler, M. & Kumar, M. (2006): Promiscuity in the Andes: a phylogenetic analysis of the genus Polylepis (Rosaceae) based on morphology and AFLP data. Syst. Bot. 31: 547-559.

Schmidt-Lebuhn, A. N., Kumar, M. & Kessler, M. (2006): An assessment of the genetic population structure of two species of Polylepis Ruiz & Pav. (Rosaceae) in the Chilean Andes. Flora 201: 317-325.

Schneider, H. (2006): Aleuritopteris. P.p. 43.47 in Johns, R. J., Edwards, P. J., Utteridge, T. M. A., Hopkins, H. C. F., A guide to the alpine and subalpine flora of Mount Jaya. Kew Publishing: Royal Botanic Gardens, Kew.

Schneider, H., Kreier, H.-P., Perrie, L. R. & Brownsey, P. J. (2006): The relationships of Microsorum (Polypodiaceae) species occurring in New Zealand. New Zealand J Bot. 44: 121-127.

Schneider, H., Kreier, H.-P., Wilson, R. & Smith, A. R. (2006): The Synammia enigma: evidence for a temperate lineage of polygrammoid ferns (Polypodiaceae, Polypodiidae) in southern South America. Syst. Bot. 31: 31-41.

Schneider H. & Schuettpelz, E. (2006): Identifying fern gametophytes using DNA sequences. Mol. Ecol. Notes 6: 989-991.

Smith, A. R., Kreier, H.-P., Haufler, C. H., Ranker, T. A. & Schneider, H. (2006): Serpocaulon (Polypodiaceae), a new genus segregated from Polypodium. Taxon 55: 919-930.

Smith, A. R., Pryer, K. M., Schuettpelz, E., Korall, P., Schneider, H. & Wolf P. G. (2006): A classification for extant ferns. Taxon 55: 705-731.

Wagenitz, G., Hellwig, F. H., Parolly, G. & Martins, L. (2006): Two new species of Centaurea (Compositae, Cardueae) from Turkey. Willdenowia 36: 423-434.

Wagenitz, G. & Wissemann, V. (2006): "Es scheint als verrücke die Botanik in Mannheim allen [...] den Kopf". Johannes Hedwig und die Botanik seiner Zeit im Spiegel hier erstmalig editierter und annotierter Briefe der Jahre 1790-1792. Acta Historica Leopoldina 46: 431-445.