Entosthodon rubrisetus

(Bartram) Grout

Moss Fl. N. Amer. 2: 80. 1935,.

Basionym: Funaria rubriseta Bartram Bryologist 31: 93, plate 9, figs. A–F. 1928
Treatment appears in FNA Volume 27. Treatment on page 186. Mentioned on page 184, 187.

Plants 2–5 mm, pale yellow-green. Leaves little contorted when dry, ovate to obovate or spathulate, imbricate, concave, 2–3 (–4) mm; margins serrulate distally by projecting ends of thin-walled marginal cells; apices gradually narrowed to a filiform acuminate tip about 425 µm; costa ending 5–8 cells before the acumen; basal laminal cells rectangular (40–55 × 20–25 µm), elongate near margins, distal cells quadrate to oblong polygonal, marginal cells not differentiated. Seta deep brownish red, 6–8 mm, straight, not or scarcely hygroscopic. Capsule deep brownish red, claviform, noticeably gibbous on one side prior to dehiscence, including the long neck that often exceeds half the length, 2–3 mm, mostly retaining shape but the neck sulcate when dry and empty; exothecial cell-walls slightly thickened, oblong (3–4:1) and transversely elongate in 3–5 rows proximal to the mouth; operculum pale in contrast to the pigmented capsule and conic-convex, about as high as wide; peristome teeth reddish-brown, narrowly lanceolate (85–100 × 10–15 µm), trabeculate basally, becoming hyaline distally and some fusing at the tips, papillose but scarcely striate basally, becoming weakly papillate on the hyaline tips, endostome not seen. Calyptra cucullate, long-beaked, inflated around the capsule, smooth. Spores 24–30 µm, with low papillae.


Habitat: Sandy soil, canyons and desert washes
Elevation: moderate to high elevations

Discussion

The deep red color of the mature sporophytes serves to help identify Entosthodon rubrisetus in the field or in the herbarium.

Selected References

None.

Lower Taxa

None.

"wide" is not a number."absent" is not a number.

... more about "Entosthodon rubrisetus"
narrowed +
Donna H. Miller +  and Harvey A. Miller +
(Bartram) Grout +
Funaria rubriseta +
specialized +
polygamous +, autoicous +  and sexual +
persistent +  and deciduous +
inflated +  and cucullate +
nearly smooth +  and asymmetric +
pigmented +  and brownish red +
cleistocarpous +  and stegocarpous +
nearly +  and erect +
gibbous;claviform +
short-rhomboid;quadrate;hexagonal +
polygonal +, quadrate +  and oblong +
Ariz. +  and Calif. +
moderate to high elevations +
projecting +
striate +  and papillose-striolate +
linear-oblong +
oblong +  and elongate +
Sandy soil, canyons and desert washes +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
erect-spreading +
concave;ovate;obovate or spathulate +
reduced +  and larger +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
not differentiated +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
conic-convex +
filiform +  and club--shaped +
proximal +  and inserted +
double +  and single +
hyaline +  and reddish-brown +
papillate +  and papillose +
oblong-rectangular +
Moss Fl. N. Amer. +
proximal +
/4 (?) +  and 1 (?) +
hygroscopic +
brownish red +
straight +
papillose +  and smooth +
elongate +
short;elongate +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
subreniform +  and spherical +
superficial +
Entosthodon rubrisetus +
Entosthodon +
species +
acuminate +  and filiform +
425 cm4,250 mm <br />4.25 m <br /> (?) +
weakly trabeculate;appendiculate +
thicker +
pale yellow-green +
annual;biennial +