Brachymenium mexicanum


Ann. Sci. Nat., Bot., sér. 2, 9: 54. 1838.

Treatment appears in FNA Volume 28. Treatment on page 124. Mentioned on page 122, 123.

Plants in open to dense turfs, green, yellow-green, or golden, often lustrous. Stems 0.5–1(–2) cm, gemmiform to somewhat rosulate. Leaves strongly imbricate, slightly twisted when dry, concave, 1–2(–3) mm; margins plane to weakly recurved proximally, entire to serrulate distally, limbidium absent; apex acute; costa short- to long-excurrent, awn present; proximal laminal cells abruptly quadrate to short-rectangular; medial and distal cells rhomboidal to elongate-hexagonal, 40–60 × 10–16 µm, 3–4:1. Specialized asexual reproduction absent. Sporophytes unknown.

Habitat: Dry rock outcrops, soil covered crevices
Elevation: moderate elevations (1000 m)


V28 190-distribution-map.gif

Ariz., Mexico, Central America.


Brachymenium mexicanum is distinguished from B. macrocarpum by its more or less imbricate leaves, lack of limbidium, and absence of rhizoidal tubers. The leaf bases are not decurrent.

Selected References


Lower Taxa