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Emilia praetermissa

Description

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Family Compositae

The largest family of flowering plants , the Compositae (Asteraceae), comprising about 1,100 genera and more than 20,000 species and characterized by many small flowers arranged in a head looking like a single flower and subtended by an involucre of bracts. A head may consist of both ray flowers and disk flowers, as in the sunflower, of disk flowers only, as in the burdock, or of ray flowers only, as in the dandelion.

Tribe Senecioneae

The Senecioneae are a tribe of closely related genera that can be recognized most readily by the nature of the pappus and the involucral bracts or phyllaries. The phyllaries are basically in one well developed, often partially or wholly connate series of equal length that closely envelope the head . Frequently there are a few, very much smaller and mostly randomly distributed, often necrotic-tipped bracts near the base of the main series. The pappus is of fine, soft, often pure white capillary hairs . Heads may be either discoid or radiate . -- Gerald Carr.

Genus Emilia

Annuals (sometimes persisting, usually monocarpic ) [perennials ], mostly 20-100 cm (taprooted; often glaucous). Stems usually 1, erect or lax (branched throughout or distally). Leaves mostly cauline; alternate; petiolate or sessile (bases usually auriculate , clasping ) ; blades pinnately nerved, mostly ovate to obovate or oblanceolate [lanceolate] (sometimes pinnately lobed, sometimes lyrate-pinnatifid), ultimate margins entire or toothed , faces usually glabrous , sometimes villous or ± arachnose. Heads discoid , in cymiform or corymbiform arrays. Calyculi 0. Involucres urceolate to campanulate or cylindric , mostly 2-8+ mm diam. Phyllaries persistent , usually 8 or 13 in 1-2 series, erect (reflexed in fruit), distinct (margins interlocking and coherent early), mostly linear to oblong , equal, margins scarious (glabrous or villous, apices usually green or slightly darkened, seldom blackish). Receptacles flat to convex , smooth or obscurely foveolate, epaleate. Ray florets 0. Disc florets 20-50[100+], all bisexual and fertile or inner functionally staminate ; corollas usually pinkish, lavender, or purplish, rarely reddish [orange, white, yellow], tubes shorter than to equaling funnelform to cylindric throats, lobes 5, erect to spreading , lance-ovate; style branches stigmatic in 2 lines , apices truncate or truncate-penicillate (appendages essentially 0). Cypselae (stramineous to brown) fusiform-prismatic, 5-ribbed, glabrous but for stout, blunt hairs on ribs ; pappi fragile, of 80-100+, white, barbellulate bristles . x = 5.

Species 50-100: introduced ; chiefly Old World tropics, some weedy in New World tropics.

D. H. Nicolson (1980) pointed out that Emilia is taxonomically complicated with poorly defined, weedy species and an involved nomenclatural history. Emilia coccinea (Sims) G. Don is occasionally cultivated as an ornamental ; it is not known to escape and persist in the flora . It keys here to E. fosbergii, from which it differs in having involucres 6-9 mm (lengths typically 1.5 times diameters). In cultivation, it has bright red to dark orange corollas. Nicolson provided drawings that illustrate the distinctions.[1]

Taxonomy

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Notes

Name Status: Accepted Name .

Comment: Data Providers: African Flowering Plants Database , Govaerts World Compositae Checklist A-G, IPNI, Tropicos. GCC LSID: urn :lsid:compositae.org:names:62A0CFE4-7AAF-4B40-AD2A-44F191A80F48

Last scrutiny: 12-Aug-09

Similar Species

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Members of the genus Emilia

ZipcodeZoo has pages for 6 species, subspecies, varieties, forms, and cultivars in this genus:

E. coccinea (Scarlet Tasselflower) · E. fosbergii (Cupids Shaving Brush) · E. sonchifolia (Flora's Paint Brush) · E. sonchifolia javanica var. javanica (Lilac Tasselflower) · E. sonchifolia var. javanica (Lilac Tasselflower) · E. sonchifolia var. sonchifolia (Lilac Tasselflower)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal November 23, 2007:

Identifiers

Footnotes

  1. Theodore M. Barkley "Emilia". in Flora of North America Vol. 20 Page 540,543, 605, 607. Oxford University Press. Online at EFloras.org. [back]
Last Revised: 2014-05-11