Tortula deciduidentata

(Sharp & Z. Iwatsuki) R. H. Zander

Bull. Buffalo Soc. Nat. Sci. 32: 223. 1993,.

Basionyms: Crumia deciduidentata Sharp & Z. Iwatsuki J. Hattori Bot. Lab. 32: 95, figs. 1, 2. 1969
Treatment appears in FNA Volume 27. Treatment on page 592. Mentioned on page 588, 590.

Leaves ovate to elliptic, occasionally lingulate, apex broadly acute, bluntly acute and muticuous or ending in a truncate or constricted mucro (in perichaetial leaves), margins revolute in proximal 1/2–2/3 of leaf, weakly bordered in distal 2/3 of leaf with 2–6 rows of thicker-walled, smaller cells; costa subpercurrent or percurrent, occasionally excurrent, lacking an adaxial pad of cells, distally narrow, 2 (–3) cells across adaxial surface; distal laminal cells hexagonal to shortrectangular, width 13–18 (–25) µm, 1 (–2):1, smooth. Sexual condition paroicous or autoicous. Sporophytes exerted. Seta 0.6–1 cm. Capsule stegocarpic, systylius and pushing the operculum off, cylindric, erect and nearly straight, urn 2.7–3.3 mm; peristome remaining in the operculum, delicate, teeth fragmentary, of somewhat twisted filaments, basal membrane low, hyaline; operculum ca. 1 mm. Spores 15–18 µm, spheric, finely papillose.


Phenology: Capsules mature Jul.
Habitat: Moist crevices, bayside bluff, hill in wet area
Elevation: low elevations (0 m)

Discussion

Tortula deciduidentata is known only from the type locality at Moller Bay and from Seguam Island, Aleutians (Bank 966, NY, as Gymnostomum calcareum). The perichaetial leaves have an excurrent costa with a truncate apex that appears apically discolored, but no deciduous parts were seen. This rare species is similar to 1a. Tortula cuneifolia var. blissii, and is further discussed there.

Selected References

None.

Lower Taxa

None.

"um" is not declared as a valid unit of measurement for this property.

... more about "Tortula deciduidentata"
smooth +  and papillose +
smooth +  and papillose +
2 +  and lacking +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
channeled +, nearly flat +  and concave +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
Richard H. Zander +  and Patricia M. Eckel +
(Sharp & Z. Iwatsuki) R. H. Zander +
semicircular +  and elliptical +
semicircular +, elliptical +  and rounded +
papillose +  and smooth +
usually slightly wider +
usually ovate;oblong +
differentiated +
Crumia deciduidentata +
obovoid +
cucullate +
0.25 cm2.5 mm <br />0.0025 m <br /> (?) +  and 0.6 cm6 mm <br />0.006 m <br /> (?) +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
dark-brown +  and yellowish-brown +
cleistocarpous +  and stegocarpous +
cylindric +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
monoicous +, dioicous +  and sexual +
twisted +, vesiculose +  and thicker-walled +
1 (?) +  and 3 (?) +
elongate-rhomboid +  and elongate +
tomentose +  and bare +
excurrent +  and percurrent +
subpercurrent +
autoicous +, paroicous +  and sexual +
low elevations (0 m) +
differentiated +
multicellular +
Moist crevices, bayside bluff, hill in wet area +
somewhat larger +
yellow +  and orange-red or red +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
concave;keeled;channeled;ovoid;lanceolate or lingulate +
lingulate +, ovate +  and elliptic +
reduced +
serrulate +  and entire +
smaller +
rostrate;long-conic +
1 cm10 mm <br />0.01 m <br /> (?) +
differentiated +
photosynthetic +
simple +  and hollow +
4 +  and 6 +
lateral +  and terminal +
lateral +  and terminal +
red +, orange +  and yellow +
consisting of 16 mostly 2 times cleft spiculose striate or papillose lanceolate teeth , , , , +  and rudimentary +
Capsules mature Jul. +
Bull. Buffalo Soc. Nat. Sci. +
straight +
not twisted +  and twisted +
brown;yellowish-brown +
elongate +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2 +  and 1 +
orange +, red +, yellow +, laminal +  and light-brown +
spheric +
rounded-pentagonal +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Desmatodon +, Phascum +, Pottia +  and Protobryum +
Tortula deciduidentata +
species +
ovoid;cylindric +
fragmentary +
32 +  and 16 +
triangular +
0.27 cm2.7 mm <br />0.0027 m <br /> (0.33 cm3.3 mm <br />0.0033 m <br />) +
yellow distally and red +, orange +, red +  and yellow +
rectangular +
thickened +, thin +  and thicker +
stemless +  and perigoniate +
yellowbrown;dark-brown +
occasionally smaller than the perichaetiate +