Desmazeria

Dumort.
Treatment appears in FNA Volume 24. Treatment on page 681.
 TaxonIllustrator 
FNA24 P261 Desmazeria pg 683.jpegDesmazeria rigida
Desmazeria sicula
Linda Ann Vorobik
Hana Pazdírková
Linda Ann Vorobik
Hana Pazdírková

Plants annual. Culms to 60 cm, procumbent to erect, sparingly branched at the base. Leaves basal and cauline; sheaths open, glabrous; auricles absent; ligules longer than wide, acute; blades linear, usually flat, sometimes convolute when dry, glabrous. Inflorescences terminal, racemes or panicles, usually with 1 branch per node; branches stiff, not secund, pedicels 0.5-3 mm. Spikelets subsessile, tangential to the rachises, lanceolate to ovate, laterally compressed, with 4-25 florets, distal florets reduced; disarticulation above the glumes, beneath the florets; rachillas not prolonged beyond the base of the distal floret. Glumes unequal to subequal, shorter than or subequal to the adjacent lemmas, 1-5-veined, unawned; calluses blunt, rounded, glabrous; lemmas narrowly elliptic, coriaceous at maturity, inconspicuously 5-veined, glabrous, sometimes scabridulous towards the apices, apices acute to obtuse, sometimes bifid, often mucronate, unawned; paleas about as long as the lemmas, 2-veined; lodicules 2, free, lanceolate; anthers 3, only slightly exserted at anthesis; ovaries glabrous. Caryopses shorter than the lemmas, concealed at maturity, ellipsoid-oblong, dorsally flattened, falling with the paleas; hila about 1/10 as long as the caryopses, ovate, x = 7.

Discussion

Desmazeria has six or seven species, all of which are native around the Mediterranean. There are two species in the Flora region, one established as a weed and one introduced as an ornamental.

One or two genera have sometimes been segregated from Desmazeria; current opinion favors the treatment presented here.

Key

1 Lemmas 2-3 mm long, rounded on the back or weakly keeled distally; anthers 0.4-0.6 mm long; inflorescences usually panicles, sometimes racemes Desmazeria rigida
1 Lemmas 3.5-4.5 mm long, strongly keeled; anthers 0.8-1.4 mm long; inflorescences racemes Desmazeria sicula

"decumbent" is not a number.

... more about "Desmazeria"
membranous +  and scarious +
mucronate +, acute +  and obtuse +
Gordon C. Tucker +
Dumort. +
1 (?) +  and 3 (?) +
straight +
basal +  and terminal +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
not evident +
cross +, linear +  and narrowly lanceolate +
spikelike +
rounded +  and blunt +
0 cm0 mm <br />0 m <br /> (60 cm600 mm <br />0.6 m <br />) +
not woody +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
4 +  and 25 +
sterile +  and bisexual +
compressed +
reduced +
shorter or longer +
subtending +
unequal +  and subequal +
uncinate +
cauline +  and basal +
scabridulous +
lanceolate +  and ovate +
subequal +
coriaceous +
longer than wide +
inconspicuous +
lanceolate +
concealed +  and prominent +
2 +  and 1 +
well-developed +
2-keeled +
spikelike +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
dry +  and fleshy +
not prolonged +
hitchcock1951a +  and stace1978a +
1 +  and 60 +
compressed +, lanceolate +  and ovate +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Desmazeria +
Poaceae tribe Poeae +
membranous +
parallel +  and converging +
stoloniferous +  and rhizomatous +
aquatic +  and terrestrial +