| Genera of the Pottiaceae: mosses of harsh environments RH Zander Bull. Buffalo Soc. Nat. Sci. 32, 1-378, 1993 | 931 | 1993 |
| Revision of the genus Leptodontium (Musci) in the New World RH Zander Bryologist, 213-280, 1972 | 138 | 1972 |
| Didymodon RH Zander Flora of North America north of mexico 27, 539-561, 2007 | 99 | 2007 |
| The tribe Pleuroweisieae (Pottiaceae, Musci) in Middle America RH Zander Bryologist, 233-269, 1977 | 96 | 1977 |
| Minimal values for reliability of bootstrap and jackknife proportions, decay index, and Bayesian posterior probability RH Zander Phyloinformatics 2, 1-13, 2004 | 86 | 2004 |
| New national and regional bryophyte records, 31 LT Ellis, A Alegro, H Bednarek-Ochyra, R Ochyra, A Bergamini, A Cogoni, ... Journal of bryology 34 (2), 123-134, 2012 | 83 | 2012 |
| Seven new genera in Pottiaceae (Musci) and a lectotype for Syntrichia RH Zander Phytologia 65 (6), 424-436, 1989 | 76 | 1989 |
| A framework for post-phylogenetic systematics RH Zander Zetetic Publications, 2013 | 72 | 2013 |
| Carbon and hydrogen isotope ratios of bryophytes from arid and humid regions PW Rundel, W Stichler, RH Zander, H Ziegler Oecologia 44, 91-94, 1979 | 69 | 1979 |
| Didymodon (Pottiaceae) in Mexico and California: taxonomy and nomenclature of discontinuous and nondiscontinuous taxa RH Zander | 64 | 1981 |
| A synopsis of Bryoerythrophyllum and Morinia (Pottiaceae) in the New World RH Zander Bryologist, 539-560, 1978 | 62 | 1978 |
| Notes on Barbula and Pseudocrossidium (Bryopsida) in North America and an annotated key to the taxa RH Zander | 61 | 1979 |
| New combinations in Didymodon (Musci) and a key to the taxa in North America north of Mexico RH Zander | 57 | 1978 |
| The Pottiaceae s. str. as an evolutionary Lazarus taxon RH Zander The Journal of the Hattori Botanical Laboratory 100, 581-602, 2006 | 52 | 2006 |
| New national and regional bryophyte records, 39 LT Ellis, OM Afonina, AK Asthana, R Gupta, V Sahu, V Nath, N Batan, ... Journal of bryology 36 (2), 134-151, 2014 | 51 | 2014 |
| The genera Didymodon and Bryoerythrophyllum (Pottiaceae) in Antarctica R Ochyra, RH Zander Journal of bryology 24 (1), 33-44, 2002 | 49 | 2002 |
| Mosses of the southern Blue Ridge Province and their phytogeographic relationships LE Anderson, RH Zander Journal, 1973 | 44 | 1973 |
| A phylogrammatic evolutionary analysis of the moss genus Didymodon in North America north of Mexico RH Zander Bulletin of the Buffalo Society of Natural Sciences 36, 81-115, 1998 | 43 | 1998 |
| Pottiaceae RH Zander, Flora of North America Editorial Committee Flora of North America North of Mexico 27, 476-642, 2007 | 42 | 2007 |
| Didymodon tectorum and D. brachyphyllus (Musci, Pottiaceae) in North America RH Zander, R Ochyra The bryologist 104 (3), 372-377, 2001 | 41 | 2001 |
