ESPELETIA ARGENTEA PDF

Espeletia argentea 1, × 1,; KB. 0 references. taxon name. Espeletia argentea. taxon author · Aimé Bonpland · year of taxon name publication. Espeletia argentea is a species of plants with 41 observations. This name is the accepted name of a species in the genus Espeletia (family Compositae). The record Espeletia argentea f. phaneractis () Cuatrec .

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By using this site, you agree to the Terms of Use and Privacy Policy. A Fragment of anther with pollen grains B pollen grain C esspeletia flower style with pollen grains D papillae of outer side of stigmatic branches, showing pollen grains. With a total distribution area of less than 75 km 2this species is probably critically endangered or imperiled.

With an estimated age of 2—4 million years Van der Hammen et al. Disc flowers with corolla lobes glabrescent or with argentex few hairs. Two of these Espeletiopsis angustifolia Cuatrec. Espeletiacommonly known as ‘frailejones’, is a genus of perennial subshrubs, in the sunflower family.

Espeletia argentea Humb. & Bonpl. — The Plant List

Only five species are found in Venezuela four of them endemic to the countrywhereas Colombia has edpeletia species. Capitulescence compact, with a dense glomerate cyme of 1— 4—6 —7 capitula, peduncles up to 1 —3 cm long. High altitude tropical biogeography.

MillerieaeAsteraceae includes eight genera and at least species Cuatrecasas ; Diazgranados a. Mauricio Diazgranados 1 Dept.

Cypselae oblong, triangular, 2. Capitula 1— 4—6 —7arranged in a compact or dense glomerate cyme in the distal 3—4 cm of the capitulescence; peduncles terete, short, 1 —3 cm long or less; with indumentum lanose whitish-yellowish, and portions of epidermis reddish. Additional duplicates will be distributed to other herbaria, including US and MO.

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Published online Dec We thank Lizeth Mantilla and Jessica Sarmiento, at that time students of the co-author, for their assistance and collaboration during the collecting expedition; Jan Barber, Vicki Funk and Mick Richardson for their constant support in the description of the new espeletua of Espeletiinaeand Lauren Merchant for the illustrations.

Tropicos | Name – Espeletia argentea Bonpl.

Species of Espeletiopsis have espelrtia been studied thoroughly. Libanothamnus Ernst Tamania Cuatrec. Open in a separate wspeletia. Sessile rosette of whitish appearance, related to Espeletiopsis santanderensisbut with smaller leaves, capitulescence compact with a dense glomerate cyme of 1— 4—6 —7 capitula and short peduncles, and disc flowers with corolla lobes glabrescent.

Revista Acad Colomb Ci Exact Photomicrographs of Espeletiopsis diazii. University of Maryland, College Park. A acaulescent sessile habit B whitish rosette from top C lateral view of capitulescence showing a dense glomerate cyme of capitula D capitulum of the holotype collection M.

Fertile bracts linear or narrowly triangular, 2—2. In other projects Wikimedia Commons Wikispecies. We also thank the editor and reviewers for their comments.

American Journal of Botany Views Read Edit View history. Espeletiopsis caldasii has capitulescences monocephalous, and Espeletiopsis santanderensis has capitulescences spreading Fig. The laminae lack pseudopetioles and the sheaths are oblong, rectangular, not broadening toward the base, the features being rare in Espeletiopsis but characteristic of Espeletia sect. Acknowledgements We thank Lizeth Mantilla and Jessica Sarmiento, at that time students of the co-author, for their assistance and collaboration during the collecting expedition; Jan Barber, Vicki Funk and Mick Richardson for their constant support in the description of the new species of Espeletiinaeand Lauren Merchant for the illustrations.

Espeletia argentea Humb. & Bonpl.

This article has been cited by other articles in PMC. In the monograph of EspeletiinaeCuatrecasas treated seven of these genera in detail, but Espeletiopsis remained untreated. Excluding reproductive parts, rosette 20—30 —50 cm tall. A acaulescent sessile habit Artentea lateral view of a section of the capitulescence, showing the long peduncles of the capitula C rosette from the top D capitulescence spreading and rosette M.

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This page was last edited on 27 Augustat The genus Espeletiopsis is distributed from the central Andes of Venezuela to the Cordillera Oriental Eastern Cordillera in Colombia, approximately from Adaxial face with indumentum whitish or silvery-sericeous, hairs 1 mm long, very abundant in young leaves, becoming less dense and almost tomentose-velutinous in old leaves, giving them a greener appearance; costa prominent but secondary nerves invisible.

However, monochasial capitulescences with several alternate bracts along the scape place this species within Espeletiopsis. This is a very distinctive species, markedly espeleita from most of the Espeletiopsis present in Colombia.

Seven species have distributions of — km 2six species are distributed in areas of less than 20 km 2and six species are known from less than seven collections, including two with only the type collection Diazgranados a ; b. A Ray corolla B disk flower C disc flower style D ray flower palea E disk flower palea F outer phyllary G inner sterile phyllary H transversal view of cypsela I dorsal view of cypsela.

The most studied species are Espeletiopsis corymbosa Humb. Marcescent leaves help protect the plants from cold. Please review our privacy policy. Capitulescences 2—5, corymbiform, more or less coetaneous, axillary, emerging from the upper nodes, twice longer than the leaves, 15— 25—45 —60 cm long; indumentum abundant, lanose-sericeous white towards the base, becoming lanose whitish-yellowish towards the distal portion.