Metaneckera Steere is proposed as a nomen novum for Neckeradelphus Steere, which is antedated by Neckeradelphus Laz. In 1940, A.S. Lazarenko began the publication of a very significant but much too little known series of four papers on the mosses of the Soviet Far East in Botanichnii Jurnal an URSR (which bears the subtitle Journal Botanique de l'Acadimie des Sciences de la RSS d'Ukraine). One of the purposes of the present communication is to call these papers to the attention of bryologists (they are cited fully and the end of this article). Parts III and IV have been in my hands for many years, but until recently, I was unable to obtain Parts I (1940) and II (1941) or to find substantive reviews of them. Because of the widespread devastation by World War II at the time of their publication, their distribution was interrupted and the stocks perhaps largely lost or destroyed. In any event, they are found in very few libraries, and the new taxa described in them are not included in Index Muscorum (Wijk et al., 1959-1967). Thanks to Dr. W. B. Schofield, who was able to obtain copies of Parts I and II, and who sent photocopies to me, I have finally been able to see these rare papers, which are of great value to my study of bryophyte distribution in Alaska. Of immediate importance here, Lazarenko proposed in Part II (1941, p. 86) the new genus Neckeradelphus Laz., based on the type species, N. varians Laz. (p. 87), 1 New York Botanical Garden, Bronx, New York 10458. This content downloaded from 207.46.13.101 on Sat, 08 Oct 2016 05:57:35 UTC All use subject to http://about.jstor.org/terms 344 THE BRYOLOGIST [Volume 70 which he places in the Pterobryaceae. The collection data are given as ad basin truncorum arborum insulae Petrova in Mare Japonico, legit Kardakova. The publication of this generic name by Lazarenko, presumably early in 1941, invalidates, as a later homonym, my publication of the same name in a different sense in December of the same year. For this reason, the following new name is necessary: Metaneckera Steere, nom. nov. Neckeradelphus Steere, The Bryologist 44: 147. 1941 (December). Not Neckeradelphus Laz., Bot. Jurnal URSR 2: 86. 1941 (March). Metaneckera menziesii (Hook. in Drumm.) Steere, comb. nov. Neckera menziesii Hook. in Drumm., Musci Bor. Amer. 162. 1828.