Calyptranthes zuzygium

(Linnaeus) Swartz

Prodr., 79. 1788.

Common names: Myrtle-of-the-river
Basionym: Myrtus zuzygium Linnaeus Syst. Nat. ed. 10, 2: 1056. 1759
Treatment appears in FNA Volume 10.
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Shrubs or trees to 12 m, glabrous throughout. Young stems terete to compressed; bark pale gray, smooth. Leaves: petiole stout, 2–4 mm, shallowly channeled; blade mostly elliptic to obovate, occasionally ovate, 4–6 (–7) × 2–4 cm, midvein convex adaxially, distinctly broader proximally, lateral-veins ca. 20 pairs, faint, ascending, marginal vein 1, 1–2 mm from margin, gently arching between lateral-veins and margin, or with second faint marginal vein parallel to margin, base cuneate, apex obtuse to abruptly blunt-tipped, adaxial surface lustrous. Peduncles slender, 2.5–4 cm (longer than fertile portion of panicle). Inflorescences 9–20-flowered, flowers mostly in triads; panicles in pairs and laxly flowered, or sometimes 1 panicle present by abortion; bracts and bracteoles early deciduous. Pedicels (0–) 1.5–5 mm. Flowers fragrant; bud obovoid, 3.5–4.5 mm; hypanthium broadly crateriform, shallowly cylindrical in fruit, 3.5–4.5 mm wide; calyptra 3.5–4.5 mm wide, apiculate; stamens 4 mm; style 5 mm. Berries bluish black, spheroid to oblate, 8–10 mm diam. Seed 5 mm diam.


Phenology: Flowering late spring–early summer.
Habitat: Subtropical hardwood hammocks.
Elevation: 0–10 m.

Distribution

Subtropical hardwood hammocks, Fla., West Indies

Discussion

Calyptranthes zuzygium is known from the Everglades and the Florida Keys, in Miami-Dade and Monroe counties; it is listed as endangered by the state of Florida.

Selected References

None.

Lower Taxa

None.
... more about "Calyptranthes zuzygium"
dorsifixed +  and basifixed +
blunt-tipped +
Bruce K. Holst +
(Linnaeus) Swartz +
compressed +
cuneate +
Myrtus zuzygium +
bluish black +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
spheroid +  and oblate +
brochidodromous +
6 cm60 mm <br />0.06 m <br /> (7 cm70 mm <br />0.07 m <br />) +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
ovate +, mostly elliptic +  and obovate +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
deciduous +
conspicuous +
obovoid +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
3.5mm +  and 4.5mm +
circumscissile +
fused +  and distinct +
Myrtle-of-the-river +
Subtropical hardwood hammocks +, Fla. +  and West Indies +
0–10 m. +
sessile +  and 0-3(-5)-merous +
fragrant +
unisexual +  and bisexual +
purplish black +  and bluish black +
spheroid +  and oblate +
aromatic +
Subtropical hardwood hammocks. +
dibrachiate +  and simple +
cylindrical +  and crateriform +
3.5mm +  and 4.5mm +
pseudoterminal +, terminal +  and axillary +
petiolate +  and simple +
persistent +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
basal +, subapical +  and inferior +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
coherent +, fused +  and distinct +
inconspicuous +
3 +  and 2 +
channeled +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering late spring–early summer. +
2 +  and 1 +
list +  and count +
bifurcate +
0 cm0 mm <br />0 m <br /> (1,200 cm12,000 mm <br />12 m <br />) +
0 +  and 200 +
4 cm40 mm <br />0.04 m <br /> (?) +
terete +  and compressed +
5 cm50 mm <br />0.05 m <br /> (?) +
Chytraculia +
Calyptranthes zuzygium +
Calyptranthes +
species +
bifurcate +
0 cm0 mm <br />0 m <br /> (1,200 cm12,000 mm <br />12 m <br />) +