Hymenocallis tridentata

Small

Man. S.E. Fl., 323. 1933.

Common names: Florida spider-lily
Endemic
Synonyms: Hymenocallis traubii Moldenke
Treatment appears in FNA Volume 26. Treatment on page 290. Mentioned on page 284.

Bulb rhizomatous, ovoid, 4–6 × 2–4 cm; basal plate 2–3 cm; neck 2–5 cm; tunic grayish brown. Leaves deciduous, 3–7, arching, reflexed at apex, 2–5.5 dm × 1–1.8 (–2.5) cm, longest leaf exceeding 4 dm at anthesis, coriaceous; blade shiny green, narrowly liguliform, channeled proximally, apex acute. Scape 3.5–5 dm, 2-edged, glaucous; scape bracts 2, enclosing buds, 4–5.5 (–6.5) × 1–1.5 cm; subtending floral bracts 2.5–5 cm × 4–8 mm. Flowers (1–) 2 (–3), one opening slightly before the other, fragrant; perianth-tube green, 6–8 (–9.5) cm; tepals slightly ascending, white, distal green-striped on keel, 7–11 (–12.5) cm × 5–8 mm; corona white with small, yellowish green proximal eye, broadly funnelform to rotate, tubulose proximally, 3–4.5 × 4–6 cm, margins between free portions of filaments with 2–3 prominent lacerate projections; free portions of filaments inserted on flat sinal base, suberect, white, 2–4 cm; anthers 1.5–2 cm, pollen yellow; ovary oblong, 1.5–2 cm × 10 mm, ovules 4–6 per locule; style green in distal 1/2, fading to white proximally, 15–19 cm. Capsules subglobose, 3–4 × 2.5–3 cm. Seeds obovoid, 2.4–2.7 × 1.5–1.9 cm.


Phenology: Flowering early–mid spring.
Habitat: Marshes, wet prairies
Elevation: 0 m

Discussion

Little information about Hymenocallis tridentata was available before a study by A. Herndon (1987), who contrasted its traits (under the name H. floridana) with those of H. palmeri, remarking that as one proceeds northward, the plants bearing two flowers show an increase in floral size. Additional study is needed to further resolve the distribution of H. tridentata and to clarify its relationship to H. rotata. Our data indicate that H. tridentata is distinctly smaller than H. rotata in all features.

Selected References

None.

Lower Taxa

None.

"broad" 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.

... more about "Hymenocallis tridentata"
cordate +  and linear +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Gerald L. Smith +  and Walter S. Flory† +
whorled +, opposite +  and alternate +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
dilated +
lacerate +  and dentate +
reticulate-veined +  and parallel-veined +
channeled +  and liguliform +
sheathing +  and involucrate +
subtending +
lanceolate;lanceolate;ovate;lanceolate;ovate;triangular +
rhizomatous +
4cm +  and 6cm +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
subglobose +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Florida spider-lily +
3 cm30 mm <br />0.03 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
11 cm110 mm <br />0.11 m <br /> (12.5 cm125 mm <br />0.125 m <br />) +
7 cm70 mm <br />0.07 m <br /> (11 cm110 mm <br />0.11 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
2 cm20 mm <br />0.02 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 +
Marshes, wet prairies +
bracteate +  and umbellate +
paired +, paniculate +  and racemose +
petiolate +  and sessile +
1.8 cm18 mm <br />0.018 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
deciduous +
reflexed +  and arching +
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
8 cm80 mm <br />0.08 m <br /> (9.5 cm95 mm <br />0.095 m <br />) +
6 cm60 mm <br />0.06 m <br /> (8 cm80 mm <br />0.08 m <br />) +
zygomorphic +  and actinomorphic +
Flowering early–mid spring. +
erect +  and incurved +
yellowish green +
Man. S.E. Fl., +
5.5 cm55 mm <br />0.055 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
4 cm40 mm <br />0.04 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
wind-distributed +
2.4 cm24 mm <br />0.024 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
1 +  and many +
obovoid +
1.5 cm15 mm <br />0.015 m <br /> (?) +  and 1.9 cm19 mm <br />0.019 m <br /> (?) +
staminodial +
3 +, 4 +  and 6 +
1 +  and several +
fading +  and white +
3 +  and 1 +
filiform +
15 cm150 mm <br />0.15 m <br /> (19 cm190 mm <br />0.19 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Hymenocallis traubii +
Hymenocallis tridentata +
Hymenocallis +
species +
connate +  and distinct +
sepaloid +  and petaloid +
narrower +
grayish brown +
3 +  and 2 +