Campylophyllopsis undetermined

KEY TO IDENTIFICATION OF CAMPYLOPHYLLOPSIS SPECIES IN RUSSIA

1. Costae single, reaching mid-leaf in most leaves, rarely double or forked .......................... C. squarrosula View in CoL

— Costae double or forked with lower, single part short- er than 0.2 the leaf length; very rarely costae single, up to 1/3 the leaf length ....................................... 2

2. Leaf acumina 0.55–0.75 the leaf length ................. ............................................................. C. calcarea View in CoL

— Leaf acumina 0.40–0.60 the leaf length ................. ....................................................... C. sommerfeltii View in CoL

Campylophyllopsis sommerfeltii (Myrin) Ochyra, Moss. Pieniny Range View in CoL 99. 2010. — Hypnum sommerfeltii Myrin, Årsberätt. Bot. Arbeten Upptäckter 1832: 328 . 1832. — Campylium hispidulum var. sommerfeltii (Myrin) Lindb., Contr. Fl. Crypt. As. View in CoL 279. 1872.

Campylium calcareum f. latifolia Schljak., Novosti Syst. Nizsh. Rast. 32: 183. 1998. Type: Altai, Chemal Creek, 3 km from mouth. Mixed forest   GoogleMaps in flood vallet, on boulder in open place. 51 23’N – 86 04’E, 450 m alt. 12 Jule   GoogleMaps 1993. Coll. M. Ignatov & E. Ignatova 34/182 (LE, isotype MHA9011517 About MHA ). syn nov.

This form was not compared with C. sommerfeltii , but we see no difference from it, except maybe that some leaves have rectangular alar cells.

Campylophyllopsis sommerfeltii is widespread throughout Russia, except the Arctic and southern xeric areas near the Caspian Sea. It is very variable and alar cells are sometimes transversely rectangular, resembling those of C. hispidula . A limited number of the studied American material (including siquences ones) have usually plants with denser foliage American However their apical part is never as short and broad as in American C. hispidula s. str., which almost never occurs in C. sommerfeltii .