Aphanorrhegma

Sullivant in A. Gray

in A. Gray, Manual, 647. 1848.

Etymology: Greek, aphanes, invisible,and rhegma, fracture, alluding to inconspicuous line of capsule dehiscence
Treatment appears in FNA Volume 27. Treatment on page 181. Mentioned on page 195.

Plants very small, scattered or gregarious. Stems to 5 mm, erect, branches simple or branching. Leaves crispate to contorted when dry, erect-spreading when moist, oblong-lanceolate, 2–2.5 mm; margins serrulate distally; apices short-acuminate; costa single, percurrent; proximal laminal cells rectangular, distal cells rectangular to almost quadrate. Sexual condition autoicous. Seta erect, to 0.2 mm. Capsule stegocarpous, erect, immersed, symmetric, globose, to 0.7 mm, smooth; exothecial cells collenchymatous, particularly those adjacent to line of dehiscence; stomata at the very base of the capsule, superficial; annulus narrow, consisting of 1 (–2) rows of delicate, small cells; operculum conical, short-apiculate, line of dehiscence equatorial, peristome absent. Calyptra mitrate, 4–6 lobed, small, smooth. Spores spherical, spiny-papillose.

Distribution

e North America

Discussion

Species 1.

Selected References

None.

... more about "Aphanorrhegma"
Bernard Goffinet +
Sullivant in A. Gray +
branching +  and simple +
specialized +
paroicous +, synoicous +, polygamous +, autoicous +, sexual +  and asexual +
persistent +  and deciduous +
lobed +  and mitrate +
nearly smooth +  and asymmetric +
stegocarpous +
0 cm0 mm <br />0 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
autoicous +  and sexual +
quadrate +  and rectangular to almost +
e North America +
Greek, aphanes, invisible,and rhegma, fracture, alluding to inconspicuous line of capsule dehiscence +
striate +  and papillose-striolate +
oblong-lanceolate;crispate;contorted +
reduced +  and larger +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
filiform +  and club--shaped +
inflated +, oblong +  and rectangular +
in A. Gray, Manual, +
papillose +  and smooth +
short;elongate +
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
spherical +
with a few branches +  and simple +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
superficial +
Aphanorrhegma +
Funariaceae +
light +  and yellow-green +
annual;biennial +
plant +  and gregarious +