Difference between revisions of "Piperia cooperi"

(S. Watson) Rydberg

Bull. Torrey Bot. Club 28: 636. 1901.

Illustrated
Basionym: Habenaria cooperi S. Watson Proc. Amer. Acad. Arts 12: 276. 1877
Synonyms: Piperia lancifolia Rydberg
Treatment appears in FNA Volume 26. Mentioned on page 573, 575, 576.
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|subfamily=Orchidaceae subfam. Orchidoideae
 
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Latest revision as of 21:12, 5 November 2020

Plants 14–90 cm. Stems attenuate toward tuberoid, fistulous, 1–8 mm diam. distal to leaves; bracts 3–12. Leaves erect-spreading; blade 9–20(–27) × 1.5–3.1 cm. Inflorescences sparsely flowered, (3–)10–40(–56) cm; rachis at least as long as peduncle; bracts 3–16 mm. Flowers green, fragrance nocturnal, honeylike; sepals 2.3–4 × 1.2–2.5 mm; dorsal sepal spreading to recurved, oblong to ovate; lateral sepals lanceolate to oblong; petals projecting to ± erect-spreading, asymmetrically triangular-ovate, 2.6–3.8 × 1.2–2 mm; lip deflexed, triangular-ovate, 1.6–4 × 1.6–3.5 mm; spur horizontal to deflexed, narrowly cylindric, 3–6(–9) mm; viscidia ovate to oblong, 0.35–0.6 × 0.2–0.4 mm; rostellum blunt. Capsules 4–12 mm. Seeds blackish brown.


Phenology: Flowering Mar–May.
Habitat: Chaparral and coastal scrub
Elevation: 0–1500 m

Distribution

V26 1176-distribution-map.jpg

Calif., Mexico (Baja California).

Discussion

Piperia cooperi and P. michaelii have very similar flowers, and their blackish brown seeds are unique in the genus. A few specimens from the Santa Monica Mountains, California, described as P. lancifolia Rydberg, have flowers with spurs of intermediate length (6–9 mm).

Selected References

None.

Lower Taxa

None.