Tortella inclinata var. inclinata

Synonyms: Tortella inclinatula Müller Hal. & Kindberg
Treatment appears in FNA Volume 27. Treatment on page 509. Mentioned on page 511.

Stems stems yellow or green, rather pale, brown proximally, yellow in KOH, to 1 cm, not to few-branched, tomentum usually conspicuous. Leaves irregularly twisted and incurved when dry; majority of leaf apices obtuse, strongly cucullate, mucro of 1–3 cells; with cross-section with adaxial and abaxial superficial walls the same width as the crosswalls; leaf cells 10–12 µm, papillae not elevated.


Phenology: Spores mature spring (late May).
Habitat: Exposed calcareous silt, sand or other loosely consolidated substrates where it functions as a pioneer species, frequently near bodies of inland fresh water, gravel bars, among pebbles on river banks, mud flats, sand dunes on the Great Lakes, also gravel pits near bogs and sandy clearings in mixed deciduous woods or spruce-pine groves, highway ditches
Elevation: low to high elevations (200-1900 m)

Distribution

V27 731-distribution-map.gif

Alta., B.C., N.W.T., Ont., Que., Yukon, Alaska, Iowa, Mich., Minn., Mont., Ohio, South America, Europe, Asia, Africa, Australia

Discussion

Variety inclinata, var. densa, and Tortella rigens are very similar in their tubulose and frequently cucullate leaves, and the groove of elongate, smooth cells on the adaxial surface of the costa extending throughout the leaf. In North America, var. inclinata appears to be restricted to calcareous silt, typically where streams flood (W. C. Steere 1978). It also inhabits larger sediments, such as the coarse sands along the Great Lakes beaches and rivers. It characterizes areas in flood zones lower than those of var. densa, which also colonizes sandy soil, but in the crevices of rocks in hilly stations. Tortella humilis, which might possibly be confused with these varieties, has a distinct stem central strand. The strikingly differentiated perichaetial leaves of var. inclinata occur only in association with fertilized archegonia. In var. inclinata the setaceous perichaetial leaves may be conspicuous on dry stems where they rise more stiffly above the curled stem leaves—as is true of those of T. alpicola, T. fragilis and T. tortuosa. Such perichaetiate plants, though uncommon, are easy to confuse with sterile or fertile T. fragilis, but the setaceous leaves of that species have propaguloid modifications in the apex whether barren or fertile.

Selected References

None.

Lower Taxa

None.
elongate +  and quadrate +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
cucullate +  and obtuse +
0.2 cm2 mm <br />0.002 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
Patricia M. Eckel +
(R. Hedwig) Limpricht +
reniform +  and rounded +
papillose +  and smooth +
usually slightly wider +
inflated +
not differentiated +
broad +  and broader +
Tortula inclinata +
obovoid +
cucullate +
yellow +  and reddish-brown darker red or brown +
cleistocarpous +  and stegocarpous +
inclined +  and erect +
elliptic;cylindric +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
monoicous +, dioicous +  and sexual +
flat to bulging +
not vesiculose +
green +  and clear +
1 (?) +  and 3 (?) +
annular +
tomentose +  and bare +
short-excurrent +
dioicous +, sexual +  and asexual +
Alta. +, B.C. +, N.W.T. +, Ont. +, Que. +, Yukon +, Alaska +, Iowa +, Mich. +, Minn. +, Mont. +, Ohio +, South America +, Europe +, Asia +, Africa +  and Australia +
low to high elevations (200-1900 m) +
differentiated +
multicellular +
Exposed calcareous silt, sand or other looExposed calcareous silt, sand or other loosely consolidated substrates where it functions as a pioneer species, frequently near bodies of inland fresh water, gravel bars, among pebbles on river banks, mud flats, sand dunes on the Great Lakes, also gravel pits near bogs and sandy clearings in mixed deciduous woods or spruce-pine groves, highway ditchesods or spruce-pine groves, highway ditches +
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 +
elongated +  and short +
distinct +
long-setaceous +
larger +
differentiated +
incurved +  and erect +
not undulate +  and plane +
undifferentiated +
crenulate-papillose +
long-rostrate;conic +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
photosynthetic +
compound +, simple +, hollow +  and solid +
not elevated +
c--shaped +
lateral +  and terminal +
as stalked buds +  and short-foliose +
lateral +  and terminal +
branched-spiculose +  and twisted +
red +, orange +  and yellow +
consisting of 16 mostly 2 times cleft spiculose striate or papillose lanceolate teeth , , , , +  and rudimentary +
Spores mature spring (late May). +
perichaetiate +
transparent +  and pale-yellow +
Laubm. Deutschl. +
filiform +
thick-walled +  and thin-walled +
brown +  and hyaline +
long-rectangular +
straight +
reddish;yellow +
elongate +
1.5 cm15 mm <br />0.015 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
2 +  and 1 +
not undulate +, channeled +, keeled-concave +  and tapered +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
yellowish-brown +
erect-spreading;spreading +
crispate +, oblong-lanceolate +  and lanceolate +
rounded-triangular +  and rounded-pentagonal +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not few-branched +
yellow +, brown +, pale +  and green +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Tortella inclinatula +
Tortella inclinata var. inclinata +
Tortella inclinata +
variety +
ovoid;cylindric +
orange +  and yellow +
stemless +  and perigoniate +
brown;yellow-green;yellowish-brown distally +
small +  and medium-sized +