Molendoa hornschuchiana

(Hooker) Lindberg ex Limpricht

Laubm. Deutschl. 1: 248. 1886,.

Basionym: Hedwigia hornschuchiana Hooker Musci Exot. 2: no. 103. 1819
Treatment appears in FNA Volume 27. Treatment on page 563. Mentioned on page 562, 564.

Stems to 2 cm, sclerodermis present. Leaves longlanceolate, 3–4 mm, proximal shoulders denticulate by projecting corners of marginal cells, apex subulate; leaf base much widened, ovate-rectangular, sheathing the stem; costa excurrent as a mucro, semilunar in section at mid leaf, guide cells 4–9; distal laminal cells often longitudinally elongate medially, 1–2: 1, rarely 2-stratose in patches.


Habitat: Mesic, quartzitic-slatey outcrops
Elevation: low evelations (100-150 m)

Distribution

V27 809-distribution-map.gif

Alaska, c Europe, Asia, n Africa

Discussion

Mesic, quartzitic-slatey outcrops; low evelations (100–150 m); Alaska; c Europe; Asia; n Africa.

Molendoa hornschuchiana is known (R. H. Zander 1979b) from only one site in the flora area, in southern Alaska (Valdez Area, Chugach Mountains, between Delta Junction and Valdez, Keystone Canyon, alongside Hwy. 4, near Bridal Veil Falls). This distinctive species is the largest of the genus, with stems reaching several centimeters in European specimens seen, and perichaetial leaves to 3 mm. The Alaskan material lacks sporophytes but has lateral perichaetia. Worldwide, the species is disjunctive between mountainous areas with high annual precipitation in temperate climates.

Lower Taxa

None.
... more about "Molendoa hornschuchiana"
quadrate +  and elongate +
flat +  and broadly or narrowly channeled +
of 1-2 rows +  and differentiated +
long-excurrent +  and short-excurrent +
differentiated +
Richard H. Zander +
(Hooker) Lindberg ex Limpricht +
obovoid;spindle-shaped +
rounded +  and crescentlike +
papillose +  and smooth +
usually slightly wider +
elliptic-sheathing +
usually ovate;oblong +
differentiated +
Hedwigia hornschuchiana +
obovoid +
mitrate +  and cucullate +
cleistocarpous +  and stegocarpous +
monoicous +, dioicous +  and sexual +
flat +  and bulging +
thick-walled +
1 (?) +  and 3 (?) +
elongate-rhomboid +  and elongate +
tomentose +  and bare +
semilunar +
in patches +, 2-stratose +, sinuolate +  and entire +
denticulate +  and plane +
rounded-triangular;oval;roundedquadrate;irregular;rounded-triangular;oval;roundedquadrate;irregular +
Alaska +, c Europe +, Asia +  and n Africa +
low evelations (100-150 m) +
differentiated +
multicellular +
Mesic, quartzitic-slatey outcrops +
yellow +  and orange-red or red +
yellow +  and yellow-orange +
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 +
ligulate +  and twisted +
ovate-rectangular +
ovate +  and linear-lanceolate +
reduced +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
dentate +  and entire +
short-conic;short-rostrate +
photosynthetic +
multifid +, 2-fid +  and scablike +
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 +
1 (?) +, 2 (?) +  and 5 (?) +
Laubm. Deutschl. +
zander1979b +
straight +
serrulate +  and sheathing +
ovatelanceolate +
2 +  and 1 +
elongate +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
dioicous +  and sexual +
usually thicker +
Anoectangium subg. Molendoa +, Ozobryum +  and Pleuroweisia +
Molendoa hornschuchiana +
Molendoa +
species +
ovoid;cylindric +
proximal +
red +  and yellow +
thickened +  and thin +
stemless +  and perigoniate +
tan;brown;dark;light green +
occasionally smaller than the perichaetiate +