Fissidens bourgaeanus Bescherelle 1872

Fissidens bourgaeanus Besch. Mem. Soc. Sci. Nat
Cherbourg 16: 170. 1872.
Stems 5-8 cm. long, sparingly branched; leaves close, overlapping, rarely reaching 2 mm. in length, about 0.8 mm. wide, oblong-lanceolate and often apiculate by the excurrent costa, serrulate at apex, the costa stout, flexuous, percurrent to excurrent, not surfaced by shortoblong cells; vaginant laminae unequal, less than half the length of the leaf, finely, evenly, and sharply crentilate-serrate on the margin; dorsal lamina wide, truncate, not always quite reaching the leaf -base; leaf-cells much as in F. austro-adiantoides but the juxta-costal not so
* Hedwig's spelling was adianthoides . Since adiantoides was used earlier by Linnaeus and subsequently by almost all who wrote on mosses, the present writer thinks it preferable to regard Hedwig's spelling as an "orthographic error" and to retain the accepted version. much larger, the marginal well defined; dioicous; archegonial buds axillary; sporophyte unknown.
Type LOcauty: "In valle Cordovensis/' Mexico. Distribution: Mexico.