Epidendrum radicans: Difference between revisions

Epidendrum radicans
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Monocots
Order:	Asparagales
Family:	Orchidaceae
Subfamily:	Epidendroideae
Genus:	Epidendrum
Species:	E. radicans
Binomial name
	Epidendrum radicans; Lindl.

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This ground-rooting orchid is a common roadside weed at middle elevations in Central America. A crucifix orchid, it is often confused with E. calanthe, E. cinnabarinum, E. denticulatum, E. erectum, E. fulgens, E. ibaguense, E. imatophyllum, E. incisum, E. schomburgkii, E. secundum, and E. xanthinum, among others. Perhaps the most diagnostic characteristic of E. radicans is its tendency to sprout roots all along the length of the stem; most other crucifix orchids only produce roots near the base. Additionally, E. radicans flowers are resupinate, unlike the members of the Epidendrum secundum complex, E. fulgens, and many other crucifix orchids. E. radicans also differs from E. secundum by bearing no nectar in the flower.

E. radicans is part of a complex of several orange-flowered, weedy species (including Asclepias spp.) that are unrelated but ecologically similar. Species within this group share pollinators as well as habitat, and are believed to exhibit what is known as convergent evolution, where unrelated species "converge" upon similar physical characteristics as a result of similar evolutionary pressures. Paulette Bierzychudek studied pollinator behavior in the apparent complex consisting of E. radicans, Asclepias curassavicia, and Lantana camara, but could not find clear evidence that floral mimicry was affecting pollination rates for any of the three species.

References

Pansarin, E. R., and Amaral, M. C. E.: "Reproductive biology and pollination mechanisms of Epidendrum secundum (Orchidaceae). Floral variation: a consequence of natural hybridization?" Plant Biology 10 (2008) 211-219

Paulette Bierzychudek: "Asclepias, Lantana, and Epidendrum: A Floral Mimicry Complex?" Biotropica, 13, 2, Supplement: Reproductive Botany (Jun., 1981), pp. 54-58, published by The Association for Tropical Biology and Conservation

Dressler, R. L.: "Will the Real Epidendrum ibaguense please stand up?" American Orchid Society Bulletin, 58(1989) pages 796 - 800.

This orchid-related article is a stub. You can help Wikipedia by expanding it.

@@ Line 1: / Line 1: @@
-{{Taxobox
+{{taxobox
-| name = ''Epidendrum radicans''
+|name = ''Epidendrum radicans''
-| image = Epidendrum-radicans.jpg
+|image = Epidendrum-radicans.jpg
-| regnum = [[Plantae]]
+|regnum = [[Plantae]]
+|unranked_divisio = [[Angiosperms]]
-| divisio = [[Flowering plant|Magnoliophyta]]
-| classis = [[Liliopsida]]
+|unranked_classis = [[Monocots]]
-| ordo = [[Orchidales]]
+|ordo = [[Asparagales]]
-| familia = [[Orchidaceae]]
+|familia = [[Orchidaceae]]
-| genus = ''[[Epidendrum]]''
+|subfamilia = [[Epidendroideae]]
-| species = '''''E. radicans'''''
+|genus = ''[[Epidendrum]]''
-| binomial = ''Epidendrum radicans''
+|species = '''''E. radicans'''''
+|binomial = ''Epidendrum radicans''
+|binomial_authority = [[John Lindley|Lindl.]]
+|}}
+This ground-rooting orchid is a common roadside weed at middle elevations in [[Central America]].  A [[crucifix orchid]], it is often confused with ''[[Epidendrum calanthe|E. calanthe]]'', ''E. cinnabarinum'', ''[[Epidendrum denticulatum|E. denticulatum]]'', ''[[Epidendrum erectum|E. erectum]]'', ''E. fulgens'', ''[[Epidendrum ibaguense|E. ibaguense]]'', ''[[Epidendrum imatophyllum|E. imatophyllum]]'', ''E. incisum'', ''E. schomburgkii'', ''[[Epidendrum secundum|E. secundum]]'', and ''[[Epidendrum xanthinum|E. xanthinum]]'', among others.  Perhaps the most diagnostic characteristic of ''E. radicans'' is its tendency to sprout roots all along the length of the stem; most other crucifix orchids only produce roots near the base.  Additionally, ''E. radicans'' flowers are [[resupination#Orchidaceae|resupinate]], unlike the members of the [[Epidendrum secundum|''Epidendrum secundum'' complex]], ''E. fulgens'', and many other [[crucifix orchid]]s.  ''E. radicans'' also differs from ''[[Epidendrum secundum|E. secundum]]'' by bearing no nectar in the flower.
-| binomial_authority = [[John Lindley|Lindl.]]
-}}
-This ground-rooting orchid is a common roadside weed at middle elevations in [[Central America]].  A [[crucifix orchid]], it is often confused with ''[[Epidendrum calanthe|E. calanthe]]'', ''E. cinnabarinum'', ''[[Epidendrum denticulatum|E. denticulatum]]'', ''[[Epidendrum erectum|E. erectum]]'', ''E. fulgens'', ''[[Epidendrum ibaguense|E. ibaguense]]'', ''[[Epidendrum imatophyllum|E. imatophyllum]]'', ''E. incisum'', ''E. schomburgkii'', ''[[Epidendrum secundum|E. secundum]]'', and ''[[Epidendrum xanthinum|E. xanthinum]]'', among others.  Perhaps the most diagnostic characteristic of ''E. radicans'' is its tendency to sprout roots all along the length of the stem; most other crucifix orchids only produce roots near the base.  Additionally, ''E. radicans'' flowers are [[resupination#Orchidaceae|resupinate]], unlike the members of the [[Epidendrum secundum|''Epidendrum secundum'' complex]], ''E. fulgens'', and many other [[crucifix orchid|crucifix orchids]].  ''E. radicans'' also differs from ''[[Epidendrum secundum|E. secundum]]'' by bearing no nectar in the flower.
 ''E. radicans'' is part of a complex of several orange-flowered, weedy species (including ''[[Asclepias]] spp''.) that are unrelated but ecologically similar. Species within this group share pollinators as well as habitat, and are believed to exhibit what is known as [[convergent evolution]], where unrelated species "converge" upon similar physical characteristics as a result of similar evolutionary pressures.  Paulette Bierzychudek studied pollinator behavior in the apparent complex consisting of ''E. radicans'', ''Asclepias curassavicia'', and ''Lantana camara'', but could not find clear evidence that floral mimicry was affecting pollination rates for any of the three species.
@@ Line 20: / Line 20: @@
 ==References==
-*Pansarin, E. R., and Amaral, M. C. E.:  "Reproductive biology and pollination mechanisms of ''Epidendrum secundum'' (Orchidaceae).  Floral variation:  a consequence of natural hybridization?" <i>Plant Biology</i> <b>10</b> (2008) 211-219
+*Pansarin, E. R., and Amaral, M. C. E.:  "Reproductive biology and pollination mechanisms of ''Epidendrum secundum'' (Orchidaceae).  Floral variation:  a consequence of natural hybridization?" ''Plant Biology'' '''10''' (2008) 211-219
-*Paulette Bierzychudek:  "''Asclepias'', ''Lantana'', and ''Epidendrum'': A Floral Mimicry Complex?" <i>Biotropica</i>, <b>13</b>, 2, Supplement: Reproductive Botany (Jun., 1981), pp. 54-58, published by The Association for Tropical Biology and Conservation
+*Paulette Bierzychudek:  "''Asclepias'', ''Lantana'', and ''Epidendrum'': A Floral Mimicry Complex?" ''Biotropica'', '''13''', 2, Supplement: Reproductive Botany (Jun., 1981), pp. 54-58, published by The Association for Tropical Biology and Conservation
-*Dressler, R. L.:  "Will the Real ''Epidendrum ibaguense'' please stand up?" <i>American Orchid Society Bulletin</i>, <b>58</b>(1989) pages 796 - 800.
+*Dressler, R. L.:  "Will the Real ''Epidendrum ibaguense'' please stand up?" ''American Orchid Society Bulletin'', '''58'''(1989) pages 796 - 800.
-{{orchid-stub}}
 [[Category:Flowers]]
 [[Category:Orchid species]]
 [[Category:Epidendrum]]
+{{orchid-stub}}