Campylocentrum pachyrrhizum

(Reichenbach f.) Rolfe

Orchid Rev. 11: 246. 1903.

Common names: Leafless bentspur orchid
Illustrated
Basionym: Aeranthus pachyrrhizus Reichenbach f. Flora 48: 279. 1865
Synonyms: Aeranthus spathaceus Grisebach
Treatment appears in FNA Volume 26. Treatment on page 620. Mentioned on page 619.

Plants appressed to substrate, inconspicuous, leafless at anthesis. Roots gray-green, fascicled, 2.5–5 mm wide when flattened against substrate. Stems hidden by roots, to 5 mm. Leaves early deciduous, minute, scarious. Inflorescences densely flowered spikes, erect to pendent, stout, to 3.5 cm; floral bracts broadly cordate, 1–3 mm, scarious, margins erose-denticulate. Flowers resupinate, funnelform; sepals brownish orange, elliptic to elliptic-lanceolate, 4 × 1.5 mm, apex acute; petals creamy white with pink flush, otherwise similar to sepals, 3.5 × 1.5 mm; lip same color as petals, 3-lobed, 2–3 × 2 mm, middle lobe triangular-acuminate, lateral lobes triangular-rounded; spur saccate, 2.5 mm; column less than 0.5 mm; pollinia greenish; ovary sessile, 1 mm. Capsules brownish orange, ellipsoid, 6–9 × 3–4 mm, pubescent.


Phenology: Flowering Sep–Oct.
Habitat: Cypress swamps and wet hammocks
Elevation: 0–20 m

Distribution

V26 1267-distribution-map.jpg

Fla., West Indies, n South America

Discussion

Selected References

None.

Lower Taxa

None.
self-pollination +
James D. Ackerman +
(Reichenbach f.) Rolfe +
Aeranthus pachyrrhizus +
indehiscent +
not +  and articulate +
conduplicate +  and plicate +
flattened +, triangular +  and cylindric +
brownish orange +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
ellipsoid +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0mm +  and 0.5mm +
Leafless bentspur orchid +
Fla. +, West Indies +  and n South America +
0–20 m +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
3-merous +, sessile +  and pedicellate +
small +  and minute +
Cypress swamps and wet hammocks +
erect +  and pendent +
0 cm0 mm <br />0 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
duplicate +, convolute +, whorled +, opposite +, distichous +  and alternate +
deciduous +
cauline +  and basal +
minute +
scarious +
free +  and distinct +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
larger +
2 cm20 mm <br />0.02 m <br /> (?) +
erose-denticulate +
differing in form and color +
1 cm10 mm <br />0.01 m <br /> (?) +
1-many-flowered +  and cymose +
pendent +  and erect +
distinct +
3.5 cm35 mm <br />0.035 m <br /> (?) +
1.5 cm15 mm <br />0.015 m <br /> (?) +
Flowering Sep–Oct. +
hard +  and ceraceous +
Orchid Rev. +
gray-green +
aerial +  and subterranean +
2.5mm +  and 5mm +
minute +
brownish orange +
distinct +
elliptic +  and elliptic-lanceolate +
foliaceous +
not +  and alike +
1.5 cm15 mm <br />0.015 m <br /> (?) +
Illustrated +
2.5 cm25 mm <br />0.025 m <br /> (?) +
rhizomatous +
pendent +  and erect +
proliferous +
reduced +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
concave +  and convex +
Aeranthus spathaceus +
Campylocentrum pachyrrhizum +
Campylocentrum +
species +
annual +  and perennial +
saprophytic +, photosynthetic +  and mycotrophic +