Monographs Details: Archilejeunea
Authority: Britton, Nathaniel L. & Millspaugh, Charles F. 1920. The Bahama Flora.
Description:Description - Plants medium-sized to large, usually reddish or brownish, consisting of a prostrate caudex and secondary, often branched, stems, free from the substratum, the branches as in Badula. Leaves imbricated, complicate-bilobed, the dorsal lobes not squarrose when moist, suborbicular to ligulate, rounded and entire; lobule inflated along the keel, the margin more or less appressed to the
lobe, entire except for the sharp apical tooth, with a hyaline papilla near the proximal base; lobules often imperfectly developed on the secondary stems; leaf-cells with distinct trigones. Underleaves orbicular to reniform, undivided, entire. Antheridia borne in pairs in the axils of saccate bracts, the androecia long but often proliferating; bracteoles everywhere present. Female inflorescence
borne on a secondary stem or one of its branches, with one or (more rarely) two subfloral innovations, the innovations often floriferous, thus giving rise to cymose clusters; bracts unequally complicate-bilobed but not winged, the lobes entire, narrower and often more sharply pointed than the loaves; bracteole sometimes bidentate or retuse. Perianth oblong to obovate, more or
less compressed, dorsal surface with one and ventral surface with two keels, the keels with narrow and interrupted wings. [Greek, chief Lcjcunca.] About 70 species, mostly tropical. Type species: A. porelloides (Spruce) Schiffn.