Platanthera psycodes |
Platanthera hookeri |
|
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lesser purple fringe bog-orchid, lesser purple fringe orchid, small purple-fringe orchid |
Hooker's bog-orchid, Hooker's orchid |
|
Habit | Plants 14–101 cm. | Plants 18–45 cm. |
Leaves | 2–5, wide-spreading, recurved to somewhat ascending, scattered along stem, gradually reduced to bracts distally; blade lanceolate, oblong-elliptic, or oblong-obovate, 5–22 × 1.5–7 cm. |
2, in subequal basal pair, spreading-ascending or lying on ground; bracts 0(–1, very rarely); blade orbiculate, broadly elliptic, or obovate, 5–17 × 4–13 cm. |
Spikes | lax to very dense. |
lax. |
Flowers | resupinate, showy, lavender- to rose-purple, rarely white; lateral sepals reflexed to somewhat spreading; petals spatulate to broadly obovate or cuneate-oblong, margins dentate-lacerate to sparsely fringed; lip descending to somewhat porrect, deeply 3-lobed, without basal thickening, 5–13 × 5–17 mm, distal margins of lobes fringed, sometimes deeply, lateral lobes often reflexed or slightly elevated above middle lobe, broadly to narrowly cuneate, middle lobe sometimes reflexed, broadly cuneate-flabellate, often emarginate to 2-fid; spur slenderly cylindric to slightly clavate, 12–22 mm; rostellum lobes nearly parallel, directed downward, short, rounded; pollinaria nearly straight; pollinia remaining enclosed within anther sacs; viscidia suborbiculate to broadly elliptic; ovary slender to stout, 9–16 mm. |
resupinate, not showy; calyx green; corolla commonly yellowish green; lateral sepals reflexed; petals narrowly lanceolate-falcate, margins entire; lip projecting to porrect, lanceolate to narrowly lance-rhombic, without basal thickening, 8–23 × 1–6 mm, margins entire; spur slenderly conic, 11–27 mm; rostellum lobes very wide-spreading, angular; pollinaria nearly straight; pollinia remaining enclosed in anther sacs; viscidia suborbiculate; ovary slender to rather stout, mostly 8–20 mm. |
2n | = 42. |
= 42. |
Platanthera psycodes |
Platanthera hookeri |
|
Phenology | Flowering Jun–Aug(–Sep). | Flowering May–Aug. |
Habitat | Alluvial and swamp forests, stream banks, riparian meadows, moist and seeping slopes, marshes, roadside banks, ditches, old fields | Dry to mesic coniferous and deciduous forest |
Elevation | 0–2000 m (0–6600 ft) | mostly 0–500 m (mostly 0–1600 ft) |
Distribution |
CT; GA; IA; IL; IN; KY; MA; ME; MI; MN; NC; NH; NJ; NY; OH; PA; RI; TN; VA; VT; WI; WV; MB; NB; NF; NS; ON; PE; QC
|
CT; IA; IL; IN; MA; ME; MI; MN; NH; NJ; NY; OH; PA; RI; VT; WI; MB; NB; NF; NS; ON; PE; QC
|
Discussion | Platanthera psycodes is known to hybridize with P. lacera in the northeasternmost portion of its range, where the species bloom simultaneously. Such hybrids are known as P. ×andrewsii (M. White) Luer; see the discussion under P. lacera. A few specimens also suggest very rare hybridization with P. grandiflora. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 26, p. 565. | FNA vol. 26, p. 555. |
Parent taxa | Orchidaceae > subfam. Orchidoideae > tribe Orchideae > subtribe Orchidinae > Platanthera | Orchidaceae > subfam. Orchidoideae > tribe Orchideae > subtribe Orchidinae > Platanthera |
Sibling taxa | ||
Synonyms | Orchis psycodes, Habenaria psycodes | Habenaria hookeri, Habenaria hookeri var. abbreviata, P. hookeri var. abbreviata |
Name authority | (Linnaeus) Lindley: Gen. Sp. Orchid. Pl., 294. (1835) | (Torrey ex A. Gray) Lindley: Gen. Sp. Orchid. Pl., 286. (1835) |
Web links |