Amaranthus sect. Acanthochiton

(Torrey) Mosyakin & K. R. Robertson

Ann. Bot. F enn. 33: 277. 1996.

Basionym: Undefined sect. Acanthochiton Torrey in L. Sitgreaves, Rep. Exped. Zuni Colorado Rivers, 170. 1853
Treatment appears in FNA Volume 4. Treatment on page 419.
Revision as of 09:41, 30 July 2020 by imported>Volume Importer
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Plants annual, glabrous or glabrescent. Bracts of pistillate flowers leaflike, deltate or rhombic-deltate, very broad, margins crispate and denticulate. Pistillate flowers: tepals 5, outer tepals linear to narrowly lanceolate, inner tepals spatulate to fan-shaped. Utricles dehiscence circumscissile.

Distribution

sw North America

Discussion

Species 1.

Selected References

None.

"broad" is not a number.

mucronulate;emarginate;obtuse;emarginate;obtuse;acute +
Sergei L. Mosyakin +  and Kenneth R. Robertson +
(Torrey) Mosyakin & K. R. Robertson +
rounded +  and narrowly cuneate +
Undefined sect. Acanthochiton +
orbiculate +  and linear +
persistent +
rhombic-deltate +, deltate +  and leaflike +
sw North America +
peripheral +
hypogynous +
minute +  and small +
not +  and dehiscent +
terminal +  and axillary +
spatulate;fan-shaped +
reduced +
denticulate +  and crispate +
scarious +  and membranaceous +
well-developed +
rudimentary +
Ann. Bot. F enn. +
brown +, reddish-brown +  and black +
lenticular +  and subglobose +
well-developed +
nearly +, simple +  and branched +
prostrate +  and decumbent +
erect +  and ascending +
not fleshy +
slender +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Acanthochiton +, Acnida +, Albersia +, Amblogyna +, Euxolus +, Mengea +, Sarratia +  and Scleropus +
Amaranthus sect. Acanthochiton +
Amaranthus subg. Acnida +
section +
distinct +
subequal +
indurate +, membranaceous +, chartaceous +  and scarious +
walled +  and 3(-5)-veined +
circumscissile +
tuberculate +  and rugose +
elongate-ovoid +, ovoid +  and globose +
membranaceous +
glabrescent +  and glabrous +