familyAmaranthaceae
genusAmaranthus
subgenusAmaranthus subg. Acnida

Amaranthus subg. Acnida

(Linnaeus) Aellen ex K. R. Robertson

J. Arnold Arbor. 62: 283. 1981.

Sergei L. Mosyakin, Kenneth R. Robertson
Basionym: Undefined subg. Acnida Linnaeus Sp. Pl.,Gen. Pl. ed. 2: 1027. 1753,5, 452. 1754
Treatment appears in FNA Volume 4. Treatment on page 415. Mentioned on page 410, 411.
Revision as of 08:41, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Plants dioecious. Stems erect to ascending, not fleshy. Inflorescences mostly terminal, well-developed spikes or spicate panicles. Pistillate flowers: tepals absent or 1–5. Utricles indehiscent or dehiscence circumscissile.

Distribution

North America, Mexico, Central America, n South America, elsewhere

Discussion

Species 9 (9 in the flora).

Selected References

None.

Lower Taxa

... more about "Amaranthus subg. Acnida"
RDF feed
4-locular line character
dehiscence +
Anther architecture or structure in adjective form
4-locular +
Apex shape
mucronulate;emarginate;obtuse;emarginate;obtuse;acute +
Author
Sergei L. Mosyakin +  and Kenneth R. Robertson +
Authority
(Linnaeus) Aellen ex K. R. Robertson +
Base shape
rounded +  and narrowly cuneate +
Basionyms
Undefined subg. Acnida +
Blade margin architecture or shape
entire +
Blade shape
orbiculate +  and linear +
Bract duration
persistent +
Bract shape
triangular +, deltate +, subulate +, linear +, lanceolate +  and ovate +
Bracteole presence
absent +
Bracteole quantity
1;2 +
Dichasium architecture
compound +
Dichasium arrangement
arranged +
Distribution
North America +, Mexico +, Central America +, n South America +  and elsewhere +
Embryo position
peripheral +
Embryo shape
annular +
Filament arrangement
alternating +
Filament fusion
distinct +
Flower architecture
pistillate +
Flower bract shape
not keeled +
Flower position
hypogynous +
Flower reproduction
unisexual +
Flower size
minute +  and small +
Fruits utricle condition or texture
dry +
Fruits utricle dehiscence
not +  and dehiscent +
Glomerule arrangement
cluster +
Illustration copyright
Flora of North America Association +
Illustrator
Yevonn Wilson-Ramsey +
Inflorescence position
terminal +  and axillary +
Inflorescence position or structure subtype
terminal +
Inflorescences cymule arrangement
arranged +
Leaf architecture
petiolate +
Leaf arrangement
alternate +
Leaf size
reduced +
Line quantity
1 +
Margin architecture or relief
undulate-erose +
Margin shape
crispate +, undulate +, plane +  and entire +
Number of lower taxa
3 +
Outer tepal size
larger +
Outer tepal texture
scarious +  and membranaceous +
Ovary architecture or structure in adjective form
1-locular +
Ovary position
superior +
Ovule quantity
1 +
Panicle architecture
spicate +
Panicle development
well-developed +
Perisperm position relational
surrounding +
Perisperm pubescence or texture
mealy +
Pistil presence
absent +
Pistil prominence
rudimentary +
Pistil quantity
1 +
Proximal bract development
modified +
Pseudostaminode presence
absent +
Publication title
J. Arnold Arbor. +
Publication year
1981 +
Reference
None +
Seed architecture or coloration or relief
reticulate +
Seed architecture or pubescence or relief
smooth +
Seed coloration
brown +, reddish-brown +  and black +
Seed coloration or relief
puncticulate +
Seed quantity
1 +
Seed reflectance
shiny +
Seed shape
lenticular +  and subglobose +
Seed size
small +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V4/V4 809.xml +
Spike development
well-developed +
Stamen presence
absent +
Stamen quantity
3;5 +
Stem architecture
nearly +, simple +  and branched +
Stem growth form or orientation
prostrate +  and decumbent +
Stem orientation
erect +  and ascending +
Stem texture
not fleshy +
Stigma atypical quantity
3 (5) +
Stigma quantity
2;3 +
Stigma size
slender +
Style presence
absent +
Style quantity
1 +
Style some measurement
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Synonyms
Acanthochiton +, Acnida +, Albersia +, Amblogyna +, Euxolus +, Mengea +, Sarratia +  and Scleropus +
Taxon family
Amaranthaceae +
Taxon name
Amaranthus subg. Acnida +
Taxon parent
Amaranthus +
Taxon rank
subgenus +
Tepal atypical quantity
1 (3) +
Tepal fusion
distinct +
Tepal presence
absent +
Tepal quantity
1;5 +
Tepal size
subequal +
Tepal texture
indurate +, membranaceous +, chartaceous +  and scarious +
Tepal variability
equal +
Trichome architecture
simple +
Utricle architecture
walled +  and 3(-5)-veined +
Utricle dehiscence
circumscissile +, dehiscence +  and indehiscent +
Utricle pubescence
glabrous +
Utricle relief
tuberculate +  and rugose +
Utricle shape
elongate-ovoid +, ovoid +  and globose +
Utricle texture
membranaceous +
Utricle width
thin +
Volume
Volume 4 +
Whole organism duration
perennial +  and annual +
Whole organism growth form
plant +
Whole organism pubescence
pubescent +  and glabrous +
Whole organism reproduction
dioecious +
X chromosome quantity
17 +  and 16 +