Difference between revisions of "Trichloris"

E. Fourn. ex Benth.
Treatment appears in FNA Volume 25. Treatment on page 225.
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|distribution=N.Y.;Ariz.;N.Mex.;Tex.
 
|distribution=N.Y.;Ariz.;N.Mex.;Tex.
|discussion=<p>Trichloris has two species, both of which are native to the Flora region. It differs from Chloris in its 3-awned lemmas. Both species of Trichloris have a disjunct distribution, populations in North America being widely separated from those in South America.</p>
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|discussion=<p><i>Trichloris</i> has two species, both of which are native to the Flora region. It differs from <i>Chloris</i> in its 3-awned lemmas. Both species of <i>Trichloris</i> have a disjunct distribution, populations in North America being widely separated from those in South America.</p>
 
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|publication year=
 
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|special status=
 
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V25/V25_824.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V25/V25_824.xml
 
|subfamily=Poaceae subfam. Chloridoideae
 
|subfamily=Poaceae subfam. Chloridoideae
 
|tribe=Poaceae tribe Cynodonteae
 
|tribe=Poaceae tribe Cynodonteae

Revision as of 20:38, 16 December 2019

Plants perennial; cespitose, sometimes stoloniferous. Culms to 150 cm, herbaceous, solid, glabrous. Sheaths open, rounded; ligules membranous, ciliate, cilia longer than the membranous base, conspicuous tufts of stiff hairs present on either side of the ligules; blades linear, flat or folded. Inflorescences terminal, panicles of non-disarticulating spikelike branches, exceeding the leaves; branches in 1 or more whorl(s), spikelets in 2 rows on the abaxial side of the branches, axes terminating in a functional spikelet. Spikelets laterally compressed, with 2-5 florets, lowest 1-2 florets bisexual, distal 1-3 florets progressively reduced and sterile; disarticulation above the glumes, all the florets falling as a unit. Glumes much shorter than the spikelets, membranous; lower glumes linear, acuminate; upper glumes lanceolate-ovate, awned; calluses bearded; lowest lemmas linear-lanceolate, 3-veined, veins prolonged into 3 awns; central awns 8-12 mm; lateral awns 0.5-12 mm; paleas 2-keeled, acute; distal floret(s) 1-3-awned; lodicules 2; anthers 2 or 3. Caryopses sulcate; embryos 1/2 as long as the caryopses; hila punctate, x = 10.

Distribution

N.Y., Ariz., N.Mex., Tex.

Discussion

Trichloris has two species, both of which are native to the Flora region. It differs from Chloris in its 3-awned lemmas. Both species of Trichloris have a disjunct distribution, populations in North America being widely separated from those in South America.

Key

1 Lowest lemma awns subequal, the central awns 8-12 mm long, equaling or slightly longer than the lateral awns Trichloris crinita
1 Lowest lemma awns unequal, the central awns 8-12 mm long, the lateral awns 0.5-1.5 mm long Trichloris pluriflora