Digitaria floridana

Hitchc.
Endemic
Treatment appears in FNA Volume 25. Treatment on page 372.

Plants annual or of indefinite duration; not stoloniferous. Culms 20-30 cm, decumbent and rooting at the nodes; nodes glabrous. Sheaths mostly glabrous, throats with papillose-based hairs; blades 4-7 cm long, 3-6 mm wide, glabrous. Panicles with 2-4 spikelike primary branches, if more than 2, rachises 7-20 mm and the branches racemose; primary branches 3-6 cm, terminal branch erect, the other (s) usually divergent, axes wing-margined, wings wider than the midribs, bearing spikelets in unequally pedicellate groups of 3 on the basal and mid-portions; secondary branches rarely present; shortest pedicels about 0.05 mm; middle pedicels about 0.1 mm; longest pedicels 0.2-0.3 mm, adnate to the branch axes basally; axillary panicles not present. Spikelets homomorphic, 1.5-1.7 mm, lanceolate. Lower glumes absent; upper glumes almost equaling the upper lemmas, conspicuously 3-veined; lower lemmas slightly longer than the upper lemmas, 7-veined, veins unequally spaced, all the intercostal regions sparsely hairy, hairs about 0.3 mm; upper lemmas light-brown when immature, dark-brown at maturity. 2n = unknown.

Discussion

Digitaria floridana is a rare species that is known only from sandy pine woods in Hernando County, Florida.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Digitaria floridana"
obtuse +  and acuminate +
anatomy +  and kranz +
J.K. Wipff +
Hitchc. +
1 (?) +  and 3 (?) +
wing-margined +
keeled +  and rounded +
pseudopetiolate +  and branching +
divergent +  and parallel +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
disarticulating +  and pseudopetiolate +
non-radiate +  and radiate +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
usually linear +  and lanceolate occasionally ovate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
triquetrous +
spikelike +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not developed +
planoconvex +
sometimes longer +
decumbent +  and erect +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
1/5 +  and 1/2 +
capillary +
germination +
pistillate +  and staminate +
sometimes longer +
compressed +  and terete +
shorter or longer +
subtending +
unequal +
membranous +
papillose-based +
uncinate +
0.3 cm3 mm <br />0.003 m <br /> (?) +
bracteate +  and ebracteate +
solid +  and hollow +
cauline +  and basal +
coriaceous +
membranous +
inconspicuous +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
complex +  and simple +
concealed +  and prominent +
2 +  and 1 +
subterranean +
dry +  and fleshy +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +
in triplets +  and paired +
1 +  and 60 +
unisexual +  and bisexual +
lanceolate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
1 +  and 3 +
fused +  and free +
2 +  and 3 +
dome--shaped +  and triangular +
Gramineae +
Digitaria floridana +
Digitaria +
species +
membranous +
dark-brown +  and light-brown +
cartilaginous +, coriaceous +  and indurate +
of indefinite duration +  and annual +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +