Harrisia simpsonii

Small ex Britton & Rose

Cact. 2: 152, fig. 223. 1920.

Common names: Simpson’s prickly apple Simpson’s applecactus queen-of-the-night
EndemicConservation concern
Synonyms: Cereus gracilis var. simpsonii (Small ex Britton & Rose) L. D. Benson
Treatment appears in FNA Volume 4. Treatment on page 153. Mentioned on page 150, 154.

Stems erect, reclining, or clambering, sometimes epiphytic and vinelike, to 4 m; ribs 9–10. Spines 7–9 per areole, 1–2.5 cm, yellow-tipped or completely yellowish when young. Flowers: flower tube 10–15 cm, prominently ridged; scales turgid at base, with axillary tufts of hairs; hairs, white, soft and silky, flexible, 6–10 mm; buds with white hairs. Fruits dull red at maturity, depressed-spheric, 40–60 mm diam.


Phenology: Flowering spring–summer.
Habitat: Sandy soils of dense thickets and hammocks, mangrove swamps
Elevation: 0 m

Discussion

Of conservation concern.

D. F. Austin (1984) suggested that the isolated populations and/or clones of Harrisia simpsonii are as different from each other as are the two species, H. aboriginum and H. simpsonii. These observations imply that varietal rank might be more suitable for the two taxa. Further study is warranted.

A number of nocturnal-flowering cereoid species with large, white flowers are known as “queen-of-the-night.”

Selected References

None.

Lower Taxa

None.

... more about "Harrisia simpsonii"
cushionlike +
circular to linear +
deciduous +  and persistent +
circular +  and oval +
2 cm20 mm <br />0.02 m <br /> (?) +
Bruce D. Parfitt +  and Arthur C. Gibson +
Small ex Britton & Rose +
hardened +
triangular +
proliferating +
flattened +  and cylindric +
Simpson’s prickly apple +, Simpson’s applecactus +  and queen-of-the-night +
mucilaginous +
not separating +
20 cm200 mm <br />0.2 m <br /> (25 cm250 mm <br />0.25 m <br />) +
12 cm120 mm <br />0.12 m <br /> (20 cm200 mm <br />0.2 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
8cm;12cm +
7.5 cm75 mm <br />0.075 m <br /> (8 cm80 mm <br />0.08 m <br />) +
7.5 cm75 mm <br />0.075 m <br /> (8 cm80 mm <br />0.08 m <br />) +
splitting +  and indehiscent +
persistent +, long +  and deciduous +
40mm;75mm +
depressed-spheric +
dry +, fleshy +  and juicy +
4 cm40 mm <br />0.04 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
Sandy soils of dense thickets and hammocks, mangrove swamps +
6 cm60 mm <br />0.06 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
deciduous +
rudimentary +
subulate +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
tuberculate +
fluted;spheric;depressed-spheric or club-shaped +
denticulate +  and entire +
5 cm50 mm <br />0.05 m <br /> (6 cm60 mm <br />0.06 m <br />) +
tuberculate +
deciduous +  and persistent +
Flowering spring–summer. +
mucilaginous +
ridgelike +  and nipple--shaped +
tuberculate +
rounded +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
deciduous +
arillate +  and strophiolate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
ellipsoid;ovoid +
1.5 cm15 mm <br />0.015 m <br /> (?) +
Endemic +  and Conservation concern +
yellow-tipped +
0.075 cm0.75 mm <br />7.5e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
straight +
deciduous +  and persistent +
10mm +  and 40mm +
usually porrect +  and ascending +
7 (?) +  and 9 (?) +
terete +  and acicular +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.075 cm0.75 mm <br />7.5e-4 m <br />) +
decurrent +
open +  and unsegmented +
epiphytic +
100cm;600cm +
clambering;reclining;clambering;reclining;erect +
cylindric +
0 cm0 mm <br />0 m <br /> (400 cm4,000 mm <br />4 m <br />) +
succulent +
2.5cm;6cm +
yellow-green +  and white +
tuberculate +
Cereus gracilis var. simpsonii +
adventitious +
tuberlike +
epipetric +  and epiphytic +
Harrisia simpsonii +
Harrisia +
species +
dull +  and glossy +
yellowish +  and darker +
unbranched +  and branched +
plant +, shrub +  and arboreous +
epiphytic;epiphytic;epiphytic +
prostrate +, clambering +  and erect +
barrel-shaped +  and spheric +