Arnoglossum floridanum

(A. Gray) H. Robinson

Phytologia 28: 294. 1974.

EndemicConservation concern
Basionyms: Cacalia floridana A. Gray Proc. Amer. Acad. Arts 19: 52. 1883
Synonyms: Conophora floridana (A. Gray) Nieuwland Mesadenia floridana (A. Gray) Greene
Treatment appears in FNA Volume 20. Treatment on page 624. Mentioned on page 623.

Plants to 100 cm (weakly rhizomatous). Stems 5-ribbed. Basal leaves: blades (usually with 5 main veins from bases) ovate to elliptic, to 18 cm, margins entire. Cauline leaves: proximal petiolate, ovate, margins crenulate; distal petiolate or sessile, smaller. Involucres 12–15 mm. Phyllaries (light green) ovate, midvein wings uniform or highest at apices. Corollas white or light green, (9–) 11–12 mm. Cypselae fusiform, 5 mm (green); pappi 7–8.5 mm. 2n = 50, 52.


Phenology: Flowering May–Jul.
Habitat: Dry sand ridges, pine-oak woodlands
Elevation: 0–20+ m

Discussion

Of conservation concern.

Arnoglossum floridanum is known only from central peninsular Florida.

Selected References

None.

Lower Taxa

None.

... more about "Arnoglossum floridanum"
not tailed +, rounded +  and obtuse +
papillate +
scarious +
usually ovate +  and lance-linear +
indeterminate +  and determinate +
Loran C. Anderson +
(A. Gray) H. Robinson +
decurrent +
Cacalia floridana +
ovate;elliptic +
0 cm0 mm <br />0 m <br /> (18 cm180 mm <br />0.18 m <br />) +
winged;nerved;ribbed +
barbellate +  and smooth +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
light green +  and white +
1.1 cm11 mm <br />0.011 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
nerved +  and (4-)10-15-ribbed +
fertile +  and bisexual +
fertile +  and bisexual +
sessile +  and petiolate +
0–20+ m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry sand ridges, pine-oak woodlands +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
cylindric;turbinate +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
recurved;spreading +
lanceolate +
crenulate +
2-carpellate +
persistent +
0.7 cm7 mm <br />0.007 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
Flowering May–Jul. +
unequal +  and subequal +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
exalbuminous +
Endemic +  and Conservation concern +
appendaged +  and truncate +
papillate +
Conophora floridana +  and Mesadenia floridana +
Arnoglossum floridanum +
Arnoglossum +
species +
campanulate +
30 cm300 mm <br />0.3 m <br /> (300 cm3,000 mm <br />3 m <br />) +