Difference between revisions of "Habenaria"
Sp. Pl. 4(1): 5, 44. 1805.
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|distribution=Pantropical. | |distribution=Pantropical. | ||
|discussion=<p>Species ca. 600 (4 in the flora).</p><!-- | |discussion=<p>Species ca. 600 (4 in the flora).</p><!-- | ||
| − | --><p>A recently identified species, Habenaria macroceratitis, is described but not fully treated here.</p> | + | --><p>A recently identified species, <i>Habenaria</i> macroceratitis, is described but not fully treated here.</p> |
|tables= | |tables= | ||
|references={{Treatment/Reference | |references={{Treatment/Reference | ||
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|publication year=1805 | |publication year=1805 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V26/V26_1186.xml |
|subfamily=Orchidaceae subfam. Orchidoideae | |subfamily=Orchidaceae subfam. Orchidoideae | ||
|tribe=Orchidaceae tribe Orchideae | |tribe=Orchidaceae tribe Orchideae | ||
Latest revision as of 22:12, 5 November 2020
Herbs perennial, terrestrial or semiaquatic, often rather succulent. Roots scattered along basal portion of stem, both slender and tuberous, fleshy; tuberoids usually spheroid. Stems: leaves basal, abruptly reduced to bracts or scattered, gradually reduced toward inflorescence. Leaves several, alternate, ascending to spreading, conduplicate, bases sheathing stem. Inflorescences terminal, lax to rather dense spicate racemes; bracts large and foliaceous to reduced. Flowers few to many, resupinate, pedicellate, sometimes showy; petals 2-lobed, lateral lobe on abaxial margin; lip 3-lobed, spurred at base; pollinaria 2; pollinia 2; viscidia free; stigma with 2 fleshy processes flanking or encircling mouth of spur. Fruits capsules, ellipsoid.
Distribution
Pantropical.
Discussion
Species ca. 600 (4 in the flora).
A recently identified species, Habenaria macroceratitis, is described but not fully treated here.
Selected References
Key
| 1 | Lateral lobes of lip and petals greatly reduced; lip hastate-auriculate; petals auriculate on abaxial margin. | Habenaria odontopetala |
| 1 | Lateral lobes of lip and petals prominently filiform, nearly equal to or exceeding other lobes; lip conspicuously 3-lobed; petals conspicuously 2-lobed. | > 2 |
| 2 | Spur more than 4 cm (often much more). | Habenaria quinqueseta |
| 2 | Spur at most 2 cm (often much shorter). | > 3 |
| 3 | Leaves basal, spreading, broadly elliptic to ovate or obovate; spur slenderly clavate. | Habenaria distans |
| 3 | Leaves scattered along length of stem, ascending, linear-lanceolate to lanceolate, narrowly elliptic, or oblanceolate; spur slenderly cylindric to scarcely clavate. | Habenaria repens |