| Diphasiastrum complanatum subsp. montellii (Kukkonen) Kukkonen | |
| Publ. & Syn. | Lycopodium tristachyum auct. ross., non Pursh (1814). - Diphasium tristachyum auct. ross. et Á. Löve & D. Löve (1975a), non (Pursh) Rothm. (1944). |
| Notes | Kukkonen (2000) stated that subsp. montellii is restricted to northern Europe. However, he previously annotated numerous plants from southern Greenland (in C) as subsp. montellii (see Feilberg 1984b). A majority of the plants from the Arctic in western and northern Alaska, northern Canada, and Greenland (ALA, O) are morphologically more similar to subsp. montellii than to subsp. complanatum. Subspecies montellii may have been overlooked in the northern parts of the range of Diphasiastrum complanatum and may actually be the more widespread northern race, similar in range to Lycopodium annotinum subsp. alpestre and L. clavatum subsp. monostachyon. Transitions between subsp. complanatum and subsp. montellii are at least partially fertile and are frequent in Fennoscandia. There are doubts whether an additional taxon is present in western Greenland, see Böcher et al. (1978), Wagner Jr. and Beitel (1993), and D. sitchense below. |
| Chromosomes | ca. 48 (ca. 2x). - Europe (Finland). - Hämet-Ahti et al. (1998, secondary report). |
| Geography | Circumboreal-polar?: NOR RUS ALA CAN GRL. |
| Distribution | N = F AN = f C = ? GW = s D = R E = R CC = X HL = X FN = r AW = s KP = r [ key ] |
| Parent taxon | Diphasiastrum complanatum (L.) Holub |
| PAF ID | 010201b |