Hymenocallis occidentalis

(J. Le Conte) Kunth

Enum. Pl. 5: 856. 1850.

Common names: Woodland hammock or northern spider-lily
IllustratedEndemic
Basionym: Pancratium occidentale J. Le Conte Ann. Lyceum Nat. Hist. New York 3: 146. 1836
Treatment appears in FNA Volume 26. Treatment on page 285. Mentioned on page 281, 286, 287, 288.

Bulb nonrhizomatous, globose, 3.5–5.5 × 3–4.5 cm; basal plate 1–3 cm; neck 1.5–4 cm; tunic dark-brown. Leaves deciduous, 5–12, arching to suberect, 3.5–6 dm × 2–6 cm, noncoriaceous; blade oblanceolate, shallowly channeled, distinctly wider beyond middle, tapering to petiolelike base, glaucous when young, apex subacute to acute. Scape (4–) 5–7 dm, 2-edged, glaucous; scape bracts 2, enclosing buds, 4–7 × 1–1.5 cm, apex long-acuminate; subtending floral bracts 2.5–4.5 cm × 5–10 mm. Flowers 3–9, opening sequentially, with heavy, sweet fragrance; perianth-tube green, slender, 7–13.5 cm; tepals slightly ascending, white, green-striped on keel, (7–) 8.5–11.5 cm × 5–10 mm; corona white with small, yellowish green eye, funnelform, shortly tubulose proximally, 2.5–4 (–4.5) × 4–5.5 cm, margins between free portions of filaments often irregularly 3-dentate; free portions of filaments inserted on flat sinal base, nearly erect, white, 2.5–4 cm; anthers 1.3–2 cm, pollen golden; ovary ovoid, 0.8–1.5 cm × 4–7 mm, ovules 2–3 per locule; style green in distal 1/3, fading into white proximally, 13–23 cm. Capsules broadly triangular to subglobose, ca. 2.5 × 2 cm. Seeds subglobose, 1.5–2.1 × 1.2–1.6 cm.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Leaves fresh at anthesis. Hymenocallis occidentalis var. occidentalis
1 Leaves withering before anthesis. Hymenocallis occidentalis var. eulae

"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.

... more about "Hymenocallis occidentalis"
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 /> (?) +
Woodland +, hammock +  and or northern spider-lily +
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 />) +
North America +
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 +
bracteate +  and umbellate +
paired +, paniculate +  and racemose +
petiolate +  and sessile +
deciduous +
arching +  and suberect +
noncoriaceous +
2 cm20 mm <br />0.02 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 +
erect +  and incurved +
4 cm40 mm <br />0.04 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 occidentalis +
Hymenocallis +
species +
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 +