Flora of North America species comparison

leaves isophyllous, ovate to ovate-lanceolate, 2.2–2.8 mm;

apex rounded;

hyaline cells nonseptate, convex surface with 6–12 pores per cell along commissures, concave surface aporose.

leaves triangular-lingulate to lingulate; 0.8–1.2 mm;

apex rounded and sometimes erose;

hyaline cells non-septate or sometimes septate, usually fibrillose in distal 1/2 of leaf, convex surface with very small pores (ca. 2 µm) along commisures and free, concave surface with fewer commissural pores.

straight and short.

turgid and often strongly curved.

ovate, 1.3–1.7 mm;

hyaline cells on convex surface with 8–18 elliptic pores more than 8 µm, concave surface aporose.

ovate-lanceolate; 1.4 or more mm; mostly subsecund;

hyaline cells on convex surface with numerous small (2 µm or more) pores along the commissures and sometimes free, concave surface with no pores or fewer small pores along the commissures.

unknown.

not known.

not seen.

not seen.

not seen.

not seen.

fascicles nearly all with 2 spreading branch only.

fascicles with 2 spreading and 2 pendent branches.