familyPottiaceae
subfamilyPottiaceae subfam. Pottioideae
genusCrossidium
speciesCrossidium squamiferum
varietyCrossidium squamiferum var. squamiferum

Crossidium squamiferum var. squamiferum

Claudio Delgadillo M.
Synonyms: Crossidium succulentum Holzinger & E. B. Bartram
Treatment appears in FNA Volume 27. Treatment on page 613. Mentioned on page 614.

Leaves with margins recurved to erect distally, undifferentiated in North American plants. Seta 7–20 mm, urn ovoid-cylindric, 1.7–2.7 mm; operculum 0.7–1.1 mm; peristome long, strongly twisted, sometimes cribrose at base, 250–1160 µm.


Phenology: Capsules mature (Aug-)Dec–Mar.
Habitat: Soil, sandy soil or rocks, dry washes
Elevation: moderate elevations (800-1000 m)

Distribution

V27 891-distribution-map.gif

Ariz., Calif., Europe, Asia (India), n Africa, Atlantic Islands (Canary Islands)

Discussion

North American specimens of var. squamiferum lack the differentiated border at the leaf base that is distinctive of the taxon elsewhere. Some specimens may show an indistinct proximal leaf border or a peristome somewhat cribrose at base, indicating intergradation with var. pottioideum. Despite this, var. squamiferum is recognized in North America by long setae, ovoid-cylindric capsules, and a long and twisted peristome.

Selected References

None.

Lower Taxa

None.

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

... more about "Crossidium squamiferum var. squamiferum"
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Abaxial epidermis prominence
inconspicuous +
Abaxial epidermis variability
differentiated +
Adaxial cell shape
elongate +  and quadrate +
Annulus architecture
revoluble +
Annulus duration
deciduous +
Annulus variability
of 1-2 rows +  and differentiated +
Apex architecture
long-excurrent +  and short-excurrent +
Apex architecture or shape
serrulate +
Apex shape
piliferous +, rounded +  and obtuse +
Author
Claudio Delgadillo M. +
Authority
(Viviani) Juratzka +
Band position
abaxial +
Band shape
reniform +  and rounded +
Basal laminal cell pubescence or shape
bulging +
Basal laminal cell relief
papillose +  and smooth +
Basal laminal cell shape
Rectangular (?) +
Basal laminal cell variability
differentiated +
Basal laminal cell width
usually slightly wider +
Basal membrane architecture
trabeculate +
Basal membrane height
high +
Basal membrane position
low +
Basal membrane presence
absent +
Base cell architecture
firm-walled +
Base cell shape
rectangular +
Base cell some measurement
11um (70um) +
Base length or size
long +
Base shape
rectangular;ovate +
Basionyms
Barbula squamifera +
Body shape
obovoid +
Branchlet height or length or size
short +
Calyptra architecture or pubescence or relief
smooth +
Calyptra relief
papillose +
Calyptra shape
cucullate +
Capsule dehiscence
cleistocarpous +  and stegocarpous +
Capsule orientation
erect +
Capsule shape
cylindric;ovoid-cylindric +
Capsule urn shape
short-cylindric +  and ovoid-cylindric +
Capsule urn some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
Cell-wall development
specialized +
Cell-wall prominence or shape
flat +
Cell-wall pubescence or shape
bulging +
Cell-wall reproduction
monoicous +, dioicous +  and sexual +
Cell-wall shape
flat to bulging +
Cell-wall size or width
thickened +
Cell architecture
vesiculose +
Cell coloration
brownish +
Cell quantity
4 +  and 10 +
Cell shape
cylindric +  and subspheric +
Central strand presence
absent +
Central strand pubescence
tomentose +  and bare +
Costa architecture
excurrent +
Cushion size
small +
Distal laminal cell architecture
2-stratose +
Distal laminal cell arrangement
stacked +
Distal laminal cell quantity
1 (?) +
Distal laminal cell shape
Rhomboid (?) +, Rarely (?) +, Hexagonal (?) +  and Subquadrate (?) +
Distal laminal cell size
small +
Distal laminal cell width
9mm;16mm +
Distribution
Ariz. +, Calif. +, Europe +, Asia (India) +, n Africa +  and Atlantic Islands (Canary Islands) +
Division architecture
spiculose +
Division shape
filiform +
Elevation
moderate elevations (800-1000 m) +
Epidermis variability
differentiated +
Filament cell architecture
thin-walled +
Filament cell shape
Cylindric (Subspheric) +
Gemma architecture
multicellular +
Gemma presence
absent +
Gemma quantity
common +
Gemma reproduction
asexual +
Habitat
Soil, sandy soil or rocks, dry washes +
Hair coloration
whitish +
Hyalodermi presence
absent +
Hydroid strand presence
absent +
Illustration copyright
Flora of North America Association +
Illustrator
Patricia M. Eckel +
Koh coloration
yellow +  and orange-red or red +
Koh quantity
2% +
Layer atypical quantity
1 (3) +
Layer quantity
1 +
Leaf-stem arrangement or shape
contorted +
Leaf-stem distance
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Leaf-stem fixation or orientation
appressed +
Leaf-stem orientation
spreading +
Leaf-stem shape
concave;keeled;channeled;ovoid;lanceolate or lingulate +
Leaf architecture
1-stratose +  and twisted +
Leaf arrangement
imbricate +, crowded +  and distributed +
Leaf cell architecture
thick-walled +  and firm-walled +
Leaf cell architecture or pubescence or relief
with 1-8 papillae +  and smooth +
Leaf cell reproduction
monoicous +, dioicous +  and sexual +
Leaf cell shape
Quadrate (?) +  and Rectangular (?) +
Leaf fragility
fragile +
Leaf height or length or size
short +
Leaf prominence
undifferentiated +
Leaf shape
lanceolate +, oblong-ovate +  and deltoid-ovate +
Leaf size
reduced +
Leaf some measurement
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Margin architecture
bordered +
Margin architecture or shape
entire +
Margin orientation
recurved +  and erect +
Margin prominence
undifferentiated +
Margin shape
plane +
Margin shape or vernation
involute +
Medial and distal cell architecture
thick-walled +
Medial and distal cell architecture or pubescence or relief
smooth +
Medial and distal cell reproduction
sexual +
Medial and distal cell some measurement
9um;33um +
Neck presence
absent +
Neck size
small +
Number of lower taxa
0 +
Operculum orientation
inclined +  and erect +
Operculum shape
conic;rostrate +
Operculum some measurement
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
Outgrowth nutrition
photosynthetic +
Papilla architecture
solid +
Papilla presence
absent +
Papilla quantity
2 +  and 5 +
Papilla shape
flattened +  and 2-fid +
Perichaetial leaf architecture or shape
sheathing +
Perichaetial leaf shape
long-oval +
Perichaetial leaf size
usually larger +
Perichaetium position
lateral +  and terminal +
Perichaetium variability
not differentiated +
Perigonium architecture or shape
budlike +
Perigonium position
lateral +  and terminal +
Peristome architecture
twisted +
Peristome course
straight +
Peristome height or length or size
short +
Peristome length or size
long +
Peristome tooth architecture
twisted +
Peristome tooth arrangement or course or shape
linear +
Peristome tooth coloration
red +, orange +  and yellow +
Peristome tooth orientation
erect +
Peristome tooth presence
absent +
Peristome tooth prominence
consisting of 16 mostly 2 times cleft spiculose striate or papillose lanceolate teeth , , , , +  and rudimentary +
Peristome tooth quantity
32 +
Phenology
Capsules mature (Aug-)Dec–Mar. +
Plant geographical terms
north +
Proximal strand quantity
1 (3) +
Publication title
Laubm.-Fl. Oesterr.-Ung., +
Reference
None +
Row course
straight +
Row orientation or shape
oblique +
Row quantity
1;2 +
Scleroderm presence
absent +
Section hydroid presence
absent +
Seta architecture
twisted +
Seta architecture or arrangement or growth form
solitary +
Seta shape
elongate +
Seta some measurement
0.7 cm7 mm <br />0.007 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Side quantity
2 +  and 1 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V27/V27 891.xml +
Spore coloration
laminal +
Spore relief
Papillose (?) +
Spore shape
spheric +
Spore size
larger +
Spore some measurement
9um (22um) +
Stem architecture
branching +
Stem architecture or shape
sheathing +
Stem atypical some measurement
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Stem shape
rounded-triangular +  and rounded-pentagonal +
Stem some measurement
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Synonyms
Crossidium succulentum +
Taxon family
Pottiaceae +
Taxon name
Crossidium squamiferum var. squamiferum +
Taxon parent
Crossidium squamiferum +
Taxon rank
variety +
Terminal cell architecture
thin-walled +
Terminal cell relief
papillose +
Terminal cell shape
Conic (?) +, Subspheric (?) +  and Rectangular (?) +
Theca shape
ovoid;cylindric +
Turf width
thin +
Urn shape
ovoid-cylindric +
Urn some measurement
0.17 cm1.7 mm <br />0.0017 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
Volume
Volume 27 +
Wall coloration
yellow distally and red +, orange +, red +  and yellow +
Wall relief
Papillose (?) +  and Smooth (?) +
Whole organism architecture
stemless +  and perigoniate +
Whole organism architecture or shape
budlike +
Whole organism coloration
green;tan +
Whole organism growth form
plant +
Whole organism size
occasionally smaller than the perichaetiate +
Whole organism some measurement
6mm (10mm) +