Hymenocallis occidentalis var. occidentalis

IllustratedEndemic
Synonyms: Hymenocallis bidentata Small Hymenocallis moldenkiana Traub
Treatment appears in FNA Volume 26. Treatment on page 285. Mentioned on page 281.

Leaves appearing in late winter, fresh at anthesis, then dying off, arching outward, to 6 cm wide. Scape bracts lanceolate, 4.5–7 cm. 2n = 52, 54.


Phenology: Flowering summer–early fall.
Habitat: Floodplain forests, hammocks, meadows, wooded hillsides
Elevation: 0–1100 m

Distribution

V26 546-distribution-map.jpg

Ala., Ark., Fla., Ga., Ill., Ind., Ky., La., Miss., Mo., N.C., S.C., Tenn.

Discussion

Hymenocallis occidentalis var. occidentalis has a long history of cultivation in southern gardens. It is unique in that it grows well in upland mesic forests, sometimes a considerable distance from a river or stream. In southern hammocks, its glaucous leaves appear in midwinter, long before flowering. Flowering may occur as soon as early July in northern Florida but is more usual in late July, August, and September. A single scape will often bear 4–9 flowers, producing an impressive display. Distinctive features are the glaucous, oblanceolate leaves; lanceolate bracts with long-acuminate apex; long, slender perianth tube; and funnelform corona with distinctly dentate margin between the free portions of filaments.

This variety is the most widely distributed spider-lily taxon (G. L. Smith et al. 1993) and is the hardiest member of the genus. For over 40 years, a collection made by the late Mary G. Henry near Evergreen, Alabama, has put on an annual, prolific floral display in late August/September at the Henry Foundation’s southern garden in Gladwyne, Pennsylvania.

Plants of Hymenocallis occidentalis often have been identified as H. caroliniana (Linnaeus) Herbert on herbarium sheets and in floras. However, the latter name is based on Pancratium carolinianum Linnaeus, and its type, as drawn by Catesby, is clearly P. maritimum Linnaeus.

Selected References

None.

Lower Taxa

None.

"wider" is not a number."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

cordate +  and linear +
1.3 cm13 mm <br />0.013 m <br /> (2 cm20 mm <br />0.02 m <br />) +
long-acuminate +, subacute +  and acute +
Gerald L. Smith +  and Walter S. Flory† +
(J. Le Conte) Kunth +
whorled +, opposite +  and alternate +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
tapering +  and petiolelike +
Pancratium occidentale +
lacerate +  and dentate +
reticulate-veined +  and parallel-veined +
channeled +  and oblanceolate +
sheathing +  and involucrate +
subtending +
lanceolate;lanceolate;ovate;lanceolate;ovate;triangular +
3.5cm +  and 5.5cm +
3 cm30 mm <br />0.03 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (?) +
broadly triangular +  and subglobose +
2 cm20 mm <br />0.02 m <br /> (?) +
4 cm40 mm <br />0.04 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
4 cm40 mm <br />0.04 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
Ala. +, Ark. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, La. +, Miss. +, Mo. +, N.C. +, S.C. +  and Tenn. +
0–1100 m +
yellowish green +
small +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
connate-coroniform +  and dilated +
fragrant +
diverging +  and erect +
unisexual +  and bisexual +
starlike +
indehiscent +, septicidal +  and loculicidal +
subglobose +  and elongate +
Floodplain forests, hammocks, meadows, wooded hillsides +
bracteate +  and umbellate +
paired +, paniculate +  and racemose +
petiolate +  and sessile +
dying +  and fresh +
deciduous +
noncoriaceous +
0 cm0 mm <br />0 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
4mm;7mm +
7 cm70 mm <br />0.07 m <br /> (13.5 cm135 mm <br />0.135 m <br />) +
zygomorphic +  and actinomorphic +
Flowering summer–early fall. +
erect +  and incurved +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
4.5 cm45 mm <br />0.045 m <br /> (7 cm70 mm <br />0.07 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
wind-distributed +
1.5 cm15 mm <br />0.015 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
1 +  and many +
subglobose +
1.2 cm12 mm <br />0.012 m <br /> (?) +  and 1.6 cm16 mm <br />0.016 m <br /> (?) +
Illustrated +  and Endemic +
staminodial +
3 +, 4 +  and 6 +
1 +  and several +
fading into white +  and green +
3 +  and 1 +
filiform +
13 cm130 mm <br />0.13 m <br /> (23 cm230 mm <br />0.23 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Hymenocallis bidentata +  and Hymenocallis moldenkiana +
Hymenocallis occidentalis var. occidentalis +
Hymenocallis occidentalis +
variety +
7 cm70 mm <br />0.07 m <br /> (8.5 cm85 mm <br />0.085 m <br />) +
green-striped;white +
connate +  and distinct +
8.5cm;11.5cm +
5mm;10mm +
sepaloid +  and petaloid +
narrower +
3 +  and 2 +