Codonoblepharon menziesii Schwagrichen, Sp. Musc. Frond. Suppl. 2(1,2): 142, plate 137 [left], figs. 1-16. 1824; Zygodon drummondii Taylor

Plants 0.3-10 cm. Stem leaves loosely incurved-twisted when dry, erect-spreading to spreading when moist, oblong, 1.2-1.8 mm; margins entire; apex acute, apiculus broad, short; costa ending near apex, abaxial surface covered by quadrate papillose cells at apex; basal laminal cells short-rectangular; distal cells 7-13 µm, smooth, walls somewhat thick. Specialized asexual reproduction by fusiform to elliptic gemmae, longitudinal walls absent. Sexual condition dioicous. Sporophytes unknown.

Trees; low elevations; Calif.; s South America; Pacific Islands (New Zealand); Australia.

Zygodon menziesii is distinguished from all other species of Zygodon in the flora area by its smooth laminal cells. This species is retained in Zygodon, but it probably belongs in a separate genus, Codonoblepharon Schwagrichen. In the flora area, Z. menziesii is known only from the San Francisco area.