familyBrassicaceae
tribeBrassicaceae tribe Arabideae
genusArabis
speciesArabis pycnocarpa
varietyArabis pycnocarpa var. adpressipilis

Arabis pycnocarpa var. adpressipilis

M. Hopkins

Rhodora 39: 117. 1937.

Ihsan A. Al-Shehbaz
Synonyms: Arabis hirsuta var. adpressipilis (M. Hopkins) Rollins
Treatment appears in FNA Volume 7. Treatment on page 260. Mentioned on page 261.

Stems pilose, trichomes appressed, malpighiaceous, or minutely stalked, forked, plants rarely glabrescent. Basal leaves: blade surfaces pubescent, trichomes sessile, forked, and/or stellate. Fruits (4–) 4.5–6 (–6.5) cm; style 0.5–1.3 mm.


Phenology: Flowering Mar–Jun.
Habitat: Ravines, pastures, cliffs, calcareous talus, dolomite glades, rich woods, bluffs, rocky ledges
Elevation: 0-300 m

Distribution

V7 343-distribution-map.gif

Ont., Ill., Ind., Iowa, Kans., Mo., N.Y., Ohio, Pa., Tenn., Va.

Discussion

R. C. Rollins (1941, 1993) recognized both pycnocarpa and adpressipilis as distinct varieties of Arabis hirsuta; G. A. Mulligan (1996) treated adpressipilis as a synonym of A. hirsuta var. pycnocarpa. In my opinion, the differences in trichome morphology of the stems and leaves are significant enough to justify recognition of infraspecific taxa of one species.

Selected References

None.

Lower Taxa

None.

"elongated" is not a number."thick" is not a number."dm" is not declared as a valid unit of measurement for this property.

... more about "Arabis pycnocarpa var. adpressipilis"
RDF feed
Androecium position
hypogynous +
Anther architecture
dithecal +
Anther dehiscence
dehiscing +
Anther shape
oblong +
Anther some measurement
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Apex shape
obtuse +  and acute +
Author
Ihsan A. Al-Shehbaz +
Authority
M. Hopkins +
Basal leaf architecture
sessile +  and petiolate +
Basal leaf arrangement
rosulate +
Base arrangement
opposite +
Base presence
absent +
Base shape
auriculate +  and subcordate +
Blade architecture
appendaged +  and unappendaged +
Blade arrangement or course or shape
linear +
Blade atypical length
6 cm60 mm <br />0.06 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Blade atypical width
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Blade base shape
not +  and auriculate +
Blade length
1.5 cm15 mm <br />0.015 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Blade margin architecture or shape
lyrate-pinnatifid +, dentate to denticulate +  and entire +
Blade margin shape
dissected +, repand +, sinuate +, crenate +  and dentate +
Blade shape
ovate;oblong or lanceolate +
Blade size
much smaller +  and reduced +
Blade surface pubescence
pubescent +
Blade width
0.3 cm3 mm <br />0.003 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Bract presence
absent +
Calyx shape
urceolate +, campanulate +  and tubular +
Caudex architecture
branched +  and simple +
Caudex texture
woody +
Cauline leaf architecture
petiolate +  and sessile +
Cauline leaf atypical quantity
45 (61) +
Cauline leaf quantity
10 (45) +
Claw development
well-developed +
Claw fusion
distinct +
Claw presence
absent +
Claw variability
differentiated +
Cotyledon architecture or shape
emarginate +  and entire +
Cotyledon arrangement
accumbent +
Cotyledon shape
3[2]-fid +
Disc presence
absent +
Distribution
Ont. +, Ill. +, Ind. +, Iowa +, Kans. +, Mo. +, N.Y. +, Ohio +, Pa. +, Tenn. +  and Va. +
Elevation
0-300 m +
Embryo course
straight +  and curved +
Endosperm orientation
absent +
Filament architecture
not winged +  and unappendaged +
Filament fusion
connate +  and distinct +
Filament position
median +
Filament shape
dilated +
Filament some measurement
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flower architecture
actinomorphic +
Flower architecture or arrangement or growth form
solitary +
Flower reproduction
bisexual +
Fruit architecture
latiseptate +  and unsegmented +
Fruit atypical length
6 cm60 mm <br />0.06 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
Fruit atypical some measurement
6 cm60 mm <br />0.06 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
Fruit atypical width
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Fruit dehiscence
indehiscent +  and dehiscent +
Fruit length
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Fruit orientation
erect +  and erect-ascending +
Fruit shape
torulose +
Fruit some measurement
4.5 cm45 mm <br />0.045 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Fruit width
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Fruits silique architecture
latiseptate +, stipitate +  and sessile +
Fruits silique architecture or pubescence or relief
smooth +
Fruits silique arrangement or course or shape
linear +
Fruits silique shape
flattened +  and torulose +
Gynophore fusion
distinct +
Gynophore presence
absent +
Habitat
Ravines, pastures, cliffs, calcareous talus, dolomite glades, rich woods, bluffs, rocky ledges +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Inflorescence arrangement
racemose +
Inflorescence position or structure subtype
terminal +
Juice odor or shape
pungent +
Juice pubescence or texture
watery +
Lateral gland shape
annular +  and semiannular +
Leaf architecture
sessile +  and petiolate +
Leaf arrangement
alternate +, not +  and rosulate +
Leaf position
cauline +  and basal +
Leaf presence
absent +
Leaf quantity
Not (?) +
Lobe arrangement
connivent +
Lobe fusion
connate +  and distinct +
Lobe length
Elongated (?) +
Lobe orientation
spreading +
Lobe shape
decurrent +
Margin architecture or shape
entire +  and dentate +
Margin shape
dentate;repand;dentate;repand;entire +
Median gland presence
absent +
Mericarp architecture
1-seeded +
Midvein prominence
prominent +  and obscure +
Nectar gland arrangement
confluent +
Nectar gland position
receptacular +
Nectar gland variability
variable +
Number of lower taxa
0 +
One architecture
sessile +  and stalked +
One quantity
fewer +
One shape
forked +
Ovary architecture
eseptate +
Ovary architecture or structure in adjective form
1-locular +  and 2-locular +
Ovary placentation
parietal +
Ovary position
apical +
Ovule architecture
tenuinucellate +, crassinucellate +  and bitegmic +
Ovule atypical quantity
54 (60) +
Ovule orientation
campylotropous +  and anatropous +
Ovule quantity
60;86 +
Pair arrangement
decussate +
Pair quantity
2 (?) +
Pedicel presence
absent +
Perianth position
hypogynous +
Petal arrangement
alternate +
Petal atypical length
0.5 cm5 mm <br />0.005 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
Petal atypical width
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Petal coloration
white +
Petal length
3.5mm;5mm +
Petal presence
absent +
Petal prominence
rudimentary +
Petal quantity
4 +
Petal shape
spatulate +  and linear-oblanceolate +
Petal width
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Petiole some measurement
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Phenology
Flowering Mar–Jun. +
Pistil architecture
2-carpellate +
Pistil quantity
1 +
Placenta quantity
2 +
Pollen-grain architecture
trinucleate +  and 3(-11)-colpate +
Pollen architecture
3-colpate +
Publication title
Rhodora +
Publication year
1937 +
Raceme architecture
simple +
Raceme arrangement
divaricate +
Raceme atypical some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Raceme orientation
erect +  and erect-ascending +
Raceme size
slender +
Raceme some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Radicle architecture
coiled +
Radicle arrangement
accumbent +
Radicle arrangement or vernation
conduplicate +
Radicle orientation
incumbent +
Radicle size
tiny +
Reference
None +
Replum prominence
indistinct +
Replum shape
rounded +
Rhizome size
slender +
Rorippa quantity
4 +
Seed-coat coating
mucilaginous +
Seed architecture
winged +
Seed architecture or arrangement
uniseriate +
Seed arrangement
uniseriate +  and biseriate +
Seed atypical length
0.15 cm1.5 mm <br />0.0015 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
Seed coating
not +  and mucilaginous +
Seed coloration
white +, black +, brown +  and yellow +
Seed length
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Seed shape
suborbicular +  and oblong +
Seed size
plump +
Seed width
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
Sepal architecture or shape
saccate +
Sepal duration
persistent +  and caducous +
Sepal fusion
distinct +
Sepal length
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Sepal orientation
ascending +  and erect +
Sepal position
lateral +
Sepal quantity
4 +
Sepal shape
oblong +
Sepal width
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Septum architecture
complete +
Septum presence
absent +
Septum size
reduced +
Silicle architecture
latiseptate +  and unsegmented +
Silicle architecture or pubescence or relief
smooth +
Silicle dehiscence
indehiscent +  and dehiscent +
Silicle l w ratio
0-3 +
Silicle shape
terete +
Silique architecture
latiseptate +  and unsegmented +
Silique dehiscence
indehiscent +  and dehiscent +
Silique shape
terete +
Slit dehiscence or orientation
longitudinal +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V7/V7 343.xml +
Stamen architecture
tetradynamous +
Stamen atypical quantity
8 (24) +
Stamen length
equal +
Stamen quantity
6 +
Stem architecture
branched +  and simple +
Stem growth form
procumbent +  and decumbent +
Stem growth form or orientation
prostrate +
Stem orientation
erect +
Stem pubescence
pilose +
Stem quantity
several +
Stigma architecture or shape
capitate +
Stigma shape
2-lobed +
Stipule architecture
subsessile +, sessile +  and petiolate +
Stipule presence
absent +
Style atypical some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
Style duration
persistent +
Style fusion
distinct +
Style presence
absent +
Style prominence
obsolete +
Style quantity
1 +
Style some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
Surface pubescence
glabrescent +, hirsute +  and pubescent +
Synonyms
Arabis hirsuta var. adpressipilis +
Taxon family
Brassicaceae +
Taxon name
Arabis pycnocarpa var. adpressipilis +
Taxon parent
Arabis pycnocarpa +
Taxon rank
variety +
Trichome architecture
sessile +, stalked +  and malpighiaceous +
Trichome arrangement
mixed +
Trichome arrangement or shape
stellate +
Trichome fixation or orientation
appressed +
Trichome shape
stellate +  and forked +
Valve architecture
coiled +, 1-7-veined +  and veined +
Valve dehiscence
dehiscing +
Valve pubescence
glabrous +
Vein architecture
anastomosing +
Volume
Volume 7 +
Whole-organism architecture
not scapose +
Whole-organism duration
perennial +  and biennial +
Whole-organism pubescence
hirsute +  and glabrescent +
Whole organism architecture
rhizomatous +, taprooted +, scapose +  and not +
Whole organism duration
perennial +, biennial +  and annual +
Whole organism growth form
plant +
Whole organism growth form or habitat
aquatics +  and terrestrial +
Whole organism location
submerged +
Whole organism pubescence
glabrescent +
Whorl quantity
2 +
Wing width
0mm;0.2mm +
X chromosome quantity
8 +