Sphenolobus Albertinus sp nov. Plants in mats, close to the soil, on forest debris, or more rarely on earth. To 3, occasionally to 5 mm long, bent. Dioecious. Leaves approximate to overlapping, somewhat secund, bifid, broadest above middle, .25 to .35 mm long, when mature, by .35 to .38 mm broad. Lobes obtuse to subacute, sinus open when wet, subacute to lunate, mostly subacute. Leaves somewhat obliquely inserted and secund. Stem with numerous dirty-hyaline rhizoids. Underleaves none, except rarely one between the bracts. Cells variable in size, shape and arrangement, averaging around 18 mic, until near base, where a few are to 20 by 30 mic. Border cells with a tendency to be sub-quadratе. Surface papillose, the papillae showing on both surfaces (looking down through microscope) and on edge or surface when folded. Cell walls firm, rather thick, but without evident trigones; chlorophyll showing up rather plainly. Antheridial bracts somewhat similar to leaves, but a little larger, and more secund, the antheridia single in the bracts, and large for the size of the plant, averaging 130 mic. Second pair of perichaetial bracts a little larger than the leaves, but otherwise similar. Bracts variable, mostly 3 fid, occasionally 2 or 4 fid, usually separate, occa- sionally connate in part (see fig 1) decidedly larger than the leaves, sharp pointed to apiculate, margin entire. Perianth cylindrical to near mouth, where slightly or more contracted into short plicae; averaging 1.4 mm long by .6 mm wide. Teeth numerous and coarse, and variable, from 1 to 5 cells long in a single row, to (usually) much broader at base. (see fig ) frequently cut into mouth of perianth. Antheridial bracts terminal on all stems examined. Young shoots with smaller, more distant and more acute leaves. Type 3864 on forest floor near Nordegg in pine forests, (Alberta) where not rare; being found in a number of places in the district.