Zephyranthes smallii

(Alexander) Traub

Pl. Life 7: 42. 1951.

Endemic
Basionym: Cooperia smallii Alexander Addisonia 21: 7, plate 676. 1939
Treatment appears in FNA Volume 26. Treatment on page 301. Mentioned on page 298, 302.
Revision as of 04:59, 30 July 2020 by imported>Volume Importer
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Leaf-blade dull green, to 5 mm wide. Spathe 2.2–4.6 cm. Flowers erect; perianth lemon yellow, salverform to broadly funnelform, 2.5–9 cm; perianth-tube yellowish green, 1.1–4.4 cm, diam. uniform, ca. 1/2 perianth length, ca. 3–5 times filament length, somewhat shorter than spathe; tepals usually reflexed; stamens fasciculate to semifasciculate, appearing equal; filaments subulate, 0.4–0.9 cm, apex acute; anthers 3–7 mm; style longer than perianth-tube; stigma capitate, among or exserted more than 2 mm beyond anthers; pedicel (0–) 0.1–3.5 cm, shorter than spathe. 2n = 53, 54, 58, 70, 72.


Phenology: Flowering early fall (Sep–Oct).
Habitat: Low, sandy loam, open fields, swales, ditches
Elevation: 0–10 m

Discussion

Morphology, cytology, and distribution suggest that Zephyranthes smallii (predominantly 2n = 54) arose from hybridization between Z. pulchella (2n = 48) and Z. chlorosolen (2n = 60 in Cameron County) in Brownsville.

Selected References

None.

Lower Taxa

None.

"wide" is not a number."-5timesfilamentlength" is not declared as a valid unit of measurement for this property."thicker" is not a number.

... more about "Zephyranthes smallii"
72 +, 70 +, 58 +, 54 +  and 53 +
dorsifixed +
linear-oblong +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Raymond O. Flagg +, Gerald L. Smith +  and Walter S. Flory† +
(Alexander) Traub +
whorled +, opposite +  and alternate +
overlapping +
dilated +
Cooperia smallii +
reticulate-veined +  and parallel-veined +
sheathing +  and involucrate +
1;several +
brown +  and black +
0–10 m +
diverging +  and erect +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
actinomorphic +
unisexual +  and bisexual +
thin-walled +  and capsular +
indehiscent +, septicidal +  and loculicidal +
oblate +  and subglobose +
membranaceous +  and leathery +
Low, sandy loam, open fields, swales, ditches +
ebracteate +, spathaceous +  and 1-flowered +
paired +, paniculate +  and racemose +
persistent +
recumbent +  and erect +
many;several +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (4.4 cm44 mm <br />0.044 m <br />) +
zygomorphic +  and actinomorphic +
salverform +
2.5 cm25 mm <br />0.025 m <br /> (9 cm90 mm <br />0.09 m <br />) +
Flowering early fall (Sep–Oct). +
wind-distributed +
wedge--shaped +
2.2 cm22 mm <br />0.022 m <br /> (4.6 cm46 mm <br />0.046 m <br />) +
fasciculate +  and semifasciculate +
adnate +  and free +
staminodial +
1 +  and several +
3-fid +  and capitate +
3 +  and 1 +
filiform +
Cooperia +
Zephyranthes smallii +
Zephyranthes +
species +
connate +  and distinct +
subequal +
sepaloid +  and petaloid +
narrower +
3 +  and 2 +