familyPottiaceae
subfamilyPottiaceae subfam. Pottioideae
genusMicrobryum
speciesMicrobryum vlassovii

Microbryum vlassovii

(Lazarenko) R. H. Zander

Bull. Buffalo Soc. Nat. Sci. 32: 240. 1993,.

Richard H. Zander
Basionym: Phascum vlassovii Lazarenko Zhurn Inst. Bot. Vseukraïns’k. Akad. Nauk 26/27: 196. 1938
Treatment appears in FNA Volume 27. Treatment on page 631. Mentioned on page 628.
Please click on the illustration for a higher resolution version.
Illustrator: Patricia M. Eckel

Copyright: Flora of North America Association

Distal laminal cells strongly bulging superficially in medial portion of leaf, adaxial surface of costa strongly mammillose, beset with “bottle-shaped” cells. Seta short, nearly absent. Capsule nearly spherical apiculate, cleistocarpous. Spores papillose, ca. 18–24 µm.


Habitat: Substrate and elevational range unknown

Distribution

V27 929-distribution-map.gif

B.C., Calif., Asia

Discussion

Sporophytes were immature in the area of the flora. Microbryum vlassovii was reported from British Columbia by T. T. McIntosh (1989) and Spain by M. N. Jiménez et al. (1990), otherwise known from Armenia, central Asia and the Ukraine. The long, smooth cell making up the end of the mucro is reminiscent of that of Chenia. The rhizoids bear distinctive unicellular hemispherical excrescences that may serve as tubers. Tortula acaulon may have ampullose adaxial costal cells (T. L. Blockeel 1995), but is yellow in KOH.

Selected References

None.

Lower Taxa

None.
... more about "Microbryum vlassovii"
RDF feed
Abaxial epidermis presence
absent +
Abaxial epidermis variability
differentiated +
Adaxial cell shape
elongate +, shortrectangular +  and quadrate +
Adaxial epidermis presence
absent +
Adaxial outgrowth presence
absent +
Adaxial surface height or length or size
short +
Adaxial surface relief
mammillose +
Adaxial surface shape
weakly concave +  and broadly channeled +
Adaxial surface some measurement
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
Annulus architecture
revoluble +
Annulus duration
persistent +
Annulus presence
absent +
Annulus quantity
of 1;2 rows +
Annulus variability
of 1-2 rows +  and differentiated +
Apex architecture
long-excurrent +  and short-excurrent +
Apex shape
acute +
Author
Richard H. Zander +
Authority
(Lazarenko) R. H. Zander +
Awn height or length or size
short +
Band presence
absent +
Band shape
round +  and semicircular +
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 shape
usually ovate;oblong +
Base variability
not differentiated +
Basionyms
Phascum vlassovii +
Body shape
obovoid +
Branchlet height or length or size
short +
Calyptra architecture or pubescence or relief
smooth +
Calyptra relief
papillose +
Calyptra shape
mitrate +  and conic-cucullate +
Capsule architecture or shape
apiculate +
Capsule dehiscence
cleistocarpous +
Capsule shape
spherical +
Cell-wall development
specialized +
Cell-wall presence
absent +
Cell-wall prominence or shape
flat +
Cell-wall pubescence or shape
bulging +
Cell-wall reproduction
synoicous +, paroicous +, monoicous +, sexual +  and asexual +
Cell-wall shape
convex +
Cell-wall size or width
thickened +
Cell-wall width
thin +
Cell architecture
vesiculose +  and parenchymatous +
Cell coloration
brownish +
Cell quantity
3 +  and 6 +
Cell shape
bottle--shaped +
Cell size
enlarged +
Central strand presence
absent +
Central strand pubescence
tomentose +  and bare +
Costa architecture
percurrent +  and excurrent +
Distal laminal cell architecture
2-stratose +
Distal laminal cell arrangement
stacked +
Distal laminal cell pubescence or shape
bulging +
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 +
Distal margin architecture or shape
serrulate +  and entire +
Distal margin orientation
recurved +
Distal medial cell architecture
1-stratose +
Distal medial cell quantity
1 +  and 2 +
Distal medial cell shape
rhomboidal;shortrectangular;quadrate;hexagonal +
Distal medial cell size
enlarged +  and small to somewhat +
Distal medial cell width
11um (15um) +
Distribution
B.C. +, Calif. +  and Asia +
Division architecture
spiculose +
Division shape
filiform +
Epidermis position
central +
Epidermis variability
differentiated +
Gemma architecture
multicellular +
Gemma presence
absent +
Gemma quantity
common +
Gemma reproduction
asexual +
Guide cell atypical quantity
2 (4) +
Guide cell quantity
2 +
Habitat
Substrate and elevational range unknown +
Hyalodermi presence
absent +
Hydroid strand presence
absent +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
Patricia M. Eckel +
Interior leaf size
enlarged +
Interior leaf variability
differentiated +
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
ligulate +
Leaf fixation or orientation
appressed +
Leaf fragility
fragile +
Leaf orientation
spreading +
Leaf shape
spathulate +  and ovate +
Leaf size
reduced +
Margin architecture
occasionally less papillose and somewhat thicker walled +
Margin architecture or shape
dentate +  and entire +
Margin orientation
recurved +
Margin relief
papillose +
Margin shape
plane +
Margin shape or vernation
involute +
Margin width
thicker +
Neck presence
absent +
Neck size
small +
Number of lower taxa
0 +
Operculum shape
low-conic +
Outgrowth nutrition
photosynthetic +
Papilla architecture
branching +, hollow +  and simple +
Papilla height
tall +
Papilla presence
absent +
Papilla quantity
1 +  and 6 +
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 position or structure subtype
terminal +
Perigonium position
lateral +  and terminal +
Peristome tooth architecture
ligulate +
Peristome tooth architecture or course
irregular +
Peristome tooth architecture or shape
untwisted +
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
rudimentary +
Peristome tooth quantity
16 +
Peristome tooth shape
triangular +
Proximal cell quantity
1 (?) +  and 2 (?) +
Proximal cell variability
differentiated +
Proximal margin variability
not differentiated +
Proximal strand quantity
1 (3) +
Publication title
Bull. Buffalo Soc. Nat. Sci. +
Reference
None +
Row atypical quantity
4 (6) +
Row course
straight +
Row orientation or shape
oblique +
Row quantity
1;2 +
Scleroderm presence
absent +
Scleroderm variability
differentiated +
Seta architecture
twisted +
Seta architecture or arrangement or growth form
solitary +
Seta height or length or size
short +
Seta presence
absent +
Seta shape
elongate +
Seta size
short;elongate +
Side quantity
2 +  and 1 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V27/V27 929.xml +
Spore coloration
red +  and laminal +
Spore relief
Papillose (?) +
Spore size
large +
Spore some measurement
18um (24um) +
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 height or length or size
short +
Stem shape
rounded-triangular +  and rounded-pentagonal +
Stem some measurement
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Synonyms
Phascum sect. Microbryum +, Phascum subg. Microbryum +, Phascum sect. Pottiella +, Phascum subg. Pottiella +, Pottia sect. Pottiella +  and Pottia subg. Pottiella +
Taxon family
Pottiaceae +
Taxon name
Microbryum vlassovii +
Taxon parent
Microbryum +
Taxon rank
species +
Theca architecture or shape
apiculate +
Theca shape
ovate;short elliptical +
Theca some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
Tip orientation
reflexed +
Tip shape
ovate +, elliptical +  and lanceolate +
Transverse-section shape
Round (?) +
Turf position
low +
Volume
Volume 27 +
Wall coloration
yellow distally and red +, orange +, red +  and yellow +
Wall position
higher +
Wall quantity
1;2;4 +
Wall relief
Papillose (?) +  and Smooth (?) +
Wall shape
rectangular +
Wall width
thin +
Whole organism architecture
stemless +  and perigoniate +
Whole organism architecture or shape
bulbiform +
Whole organism arrangement
scattered +
Whole organism coloration
brown;reddish-brown +
Whole organism growth form
plant +  and gregarious +
Whole organism size
occasionally smaller than the perichaetiate +
” shape
bottle--shaped +