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Convolvuleae

(Tribe)

Overview

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A Tribe in the Kingdom Plantae.

Photos

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Taxonomy

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The Tribe Convolvuleae is a member of the Subfamily Convolvuloideae. Here is the complete "parentage" of Convolvuleae:

The Tribe Convolvuleae is further organized into finer groupings including:

Genera

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Calystegia

Herbs prostrate or erect to twining to several meters tall, rhizomatous [or woody at base]. Leaves subsessile to petiolate, oblong to hastate or sagittate [or rarely pedate]. Inflorescences axillary, 1-flowered [or few-flowered] cymes; bracteoles 2, sepal-like, inserted immediately below calyx, ovate and sometimes saccate, enclosing calyx [or remote from calyx and subulate or leaf-shaped], persistent. Sepals subequal, persistent. Corolla white, pink [or pale yellow], funnelform, with 5 distinct midpetaline bands, glabrous. Stamens included, equal. Pollen globose, pantoporate, not spiny. Ovary 1-loculed, 4-ovuled. Style 1, included in corolla; stigmas 2, clavate. Capsule globose, glabrous, indehiscent. Seeds 4, smooth or minutely tuberculate.[1] [more]

Convolvulus

Plants annual or perennial, prostrate, erect, or strangling or twining herbs, or cushionlike or erect shrubs; axial parts usually pubescent, hairs simple or 2-armed. Leaves simple, petiolate or sessile, margin entire or ± lobed. Flowers axillary, peduncled, solitary or in various kinds of inflorescences. Sepals equal or unequal, middle sepal asymmetric (exposed 1/2 similar to outer 2 sepals, enclosed 1/2 similar to inner 2 sepals), persistent, not enlarged. Corolla funnelform or campanulate; limb shallowly lobed or entire, with 5 ± distinct midpetaline bands. Stamens included, inserted at corolla base; filaments dilated basally, filiform apically; pollen ellipsoid, 3- (or 4) -colpate, not spiny. Disc ringlike or cupular. Pistil included; ovary 2-loculed; ovules 2 per locule. Style 1, filiform; stigmas 2, linear, cylindric, or clavate. Capsule 2-loculed, 4-valved or irregularly dehiscent. Seeds 1-4, black or brown, often verruculose, pubescent, rarely glabrous.[2] [more]

Coprosma

Coprosma is a genus of about 90 species that are found in (45 spp), Hawaii (c. 20 spp) and in Borneo, Java, New Guinea, islands of the Pacific Ocean to Australia. Many species are small shrubs with tiny evergreen leaves, but a few are small trees and have much larger leaves. The flowers have insignificant petals and are wind-pollinated, with long anthers and stigmas. Natural hybrids are common. The fruit is a non-poisonous juicy berry, most often bright orange (but can be dark red or even light blue), containing two small seeds. It is said that coffee can be made from the seeds, Coprosma being related to the coffee plants. A notable feature (also found in other genera of the Rubiaceae) is that the leaves contain hollows in the axils of the veins; in these, and on the leaf stipules, nitrogen-fixing bacteria grow. [more]

At least 290 species and subspecies belong to the Genus Coprosma.

More info about the Genus Coprosma may be found here.

Footnotes

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  1. Fang Rhui-cheng, Richard K. Brummitt "Calystegia". in Flora of China Vol. 16 Page 286. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.
  2. "Convolvulus". in Flora of China Vol. 16 Page 289. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.

Sources

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Last Revised: September 22, 2009
2009/09/22 15:11:12