Encalypta texana

Magill

Bryologist 109: 399, figs. 1–11. 2006,.

Treatment appears in FNA Volume 27. Treatment on page 174. Mentioned on page 173, 175.

Stems 5–10 mm, central strand small. Leaves broadly oblong to elliptic, 3–4 mm; apices broadly acute, mucronate; margins plane to erect or incurved distally or weakly recurved proximally; costa percurrent to subpercurrect, narrow, papillose distally on adaxial surface; laminal cells 15–25 µm; basal-cells 25–75 µm, walls thickened, smooth; basal marginal cells weakly differentiated, longer than laminal cells, in 3–5 rows. Specialized asexual reproduction absent. Seta 4–6 mm, yellowbrown. Capsule cylindric, 1.8–2 mm, smooth to weakly wrinkled when dry, gymnostomous, yellowish-brown; exothecial cells quadrate, walls thickened; peristome absent; operculum 0.5 mm. Calyptra 3–4 mm, irregularly fringed at base, weakly papillose to essentially smooth. Spores 30–35 µm, finely pitted, reddish-brown.


Habitat: Igneous soil in rock crevices

Discussion

Encalypta texana was previously identified as a North American specimen of E. sibirica (Weinmann) Warnstorf. Several distinct characters and important habitat and distributional factors, however, set it apart from that Asian species: costa ending just before the apex, capsule length, calyptra ornamentation, spore ornamentation, and differences in gametophyte and calyptra color. Encalypta texana could be confused with another species with gymnostomous capsules and costae ending before the leaf apex, E. flowersiana, which is also present in the mountains of western Texas. Encalypta flowersiana is smaller, with leaf margins plane, capsule furrowed, and spores have distinct ridges, while E. texana has laminal margins incurved to plane distally and recurved proximally, capsule smooth to weakly wrinkled, and spores finely pitted.

Selected References

None.

Lower Taxa

None.
... more about "Encalypta texana"
Mucronate (?) +  and Acute (?) +
Robert E. Magill +
Magill +
long-rectangular +
fringed +  and lacerate +
thin-walled +
small +
weakly papillose +  and essentially smooth +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
furrowed +  and smooth +
yellowish-brown +
erect +  and inclined +
long-exserted +
smooth;weakly wrinkled +
cylindric +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
subpercurrent +
papillose +
autoicous +  and sexual +
distinct +
Igneous soil in rock crevices +
rhombic;quadrate +
costate +  and twisted +
broadly oblong +  and elliptic +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
recurved +, or +, incurved +  and erect +
conic-rostrate +
0.5 cm5 mm <br />0.005 m <br /> (?) +
c--shaped +
reduced to small +  and papillose +
frequently reduced;small +
yellowbrown +
elongate +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
reddish-brown +
rounded +
0.5 cm5 mm <br />0.005 m <br /> (?) +  and 1 cm10 mm <br />0.01 m <br /> (?) +
phaneroporous +
Encalypta texana +
Encalypta +
species +
papillose +
incrassate +
plant +  and gregarious +
small +  and medium-sized +