SIMSII (Sweet) Stearn, 1951 (engl./ fr.)
Synonyms :
Sempervivum simsii Sweet (1818)
Sempervivum ciliatum Sims (1818)
Sempervivum barbatum C.Smith ex Hornemann (1819)
Sempervivum caespitosum C.Smith ex Otto (1820) / Aeonium caespitosum (C.Smith ex Otto) Webb & Berthelot (1840)
Sempervivum ciliare Haworth (1819)
Sempervivum ligulare Haworth (1817)
Section Chrysocome
Distribution : Canary Islands (Gran Canaria); 500 - 1900 m.
Description (by R. Nyffeler in IHSP, 2003) :
Perennial caespitose rosette plants.
Stems stout, glabrous, smooth.
Rosette 4 - 12 cm in diameter, cup-shaped.
Leaves 2 - 6 x 0.6 - 2 cm, 1.5 - 2 mm thick, lanceolate, apically acuminate, basally cuneate, puberulent, with conspicuous longitudinal brownish tannic stripes on lower face, margin with conical cilia (1 - 2.5 mm long), yellowish-green.
Inflorescences from basal axils of rosettes, floriferous part 2 - 5 x 2 - 8 cm, densely leafy, 15- to 50-flowered, peduncle 5 - 30 cm long, pedicels 1 – 9 mm, glabrous.
Flowers 7- to 9-merous, sepals glabrous, petals 5 - 6 x 1.2 - 1.8mm, oblanceolate, acute, yellow, filaments glabrous.
Cytology : n = 18, 36
See also : The genus Aeonium on Gran Canaria by Marco Cristini
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Synonymes :
Sempervivum simsii Sweet (1818)
Sempervivum ciliatum Sims (1818)
Sempervivum barbatum C.Smith ex Homemann (1819)
Sempervivum caespitosum C.Smith ex Otto (1820) / Aeonium caespitosum (C.Smith ex Otto) Webb & Berthelot (1840)
Sempervivum ciliare Haworth (1821)
Sempervivum ligulare Haworth (1821)
Section Chrysocome
Distribution : Iles Canaries (Gran Canaria) ; 500 - 1900 m.
Description (par R. Nyffeler IHSP, 2003) :
Plante à rosette vivace cespiteuse.
Tiges épaisses, glabres et lisses.
Rosette d'un diamètre de 4 - 12 cm, en forme de coupe.
Feuilles 2 - 6 x 0,6 - 2 cm, 1,5 - 2 mm d'épaisseur, lancéolées, acuminées à l'apex, à base cunée, duveteuses, avec bandes marron bien visibles sur la face inférieure, marge avec cils coniques (1 - 2,5 mm de long), vert jaunâtre.
Inflorescence à partir de la tige basale de la rosette, partie florifère de 2 - 5 x 2 - 8 cm, densément feuillue, de 15 à 50 fleurs, pédoncule 5 - 30 cm de long, pédicelles 1 – 9 mm, glabres.
Fleurs hepta- à ennéamères (de 7 à 9 parties), sépales glabres, pétales 5 - 6 x 1,2 - 1,8 mm, oblancéolés, aigus, jaunes, filaments glabres.
Cytologie : n = 18, 36
Voir aussi : The genus Aeonium on Gran Canaria by Marco Cristini
Gran Canaria, Hoya del Gamonal :
![](/img/500/d3012df3b6e4681ca392654516b29eb7_figure 33.jpg)
![](/img/500/771ba7a5548494a5cfd52db947b1b326_figure 37 §.jpg)
Hoya del Gamonal, over Lomito Blanco :
![](/img/500/7aa28870bf5c14cf38caf2bb2985296c_figure 38.jpg)
Cruz de Tejeda :
![](/img/500/a0e6ce8276b420bf07c365bcb57da09f_figure 34.jpg)
Cruz de Tejeda, Monte Constantino :
![](/img/500/642d1c65c5621a526a613177e766ad06_figure 36.jpg)
Near Embalse de los Homos :
![](/img/500/f65170f2540ac755281cdbe8bfd3a120_figure 39 §.jpg)
Photos Marco Cristini
![](/img/500/01feea90e150116de357d385a35b1a02_9256.jpg)
Photo Ray Stephenson
Plants in cultivation :
![](/img/500/8b41418f0a047b621c037be9a766305f_10740.jpg)
An open rosette of A. simsii in cultivation (Brescia, Northern Italy) :
![](/img/500/388c5cf2d8259a7cd094b586bc72d66b_figure 35.jpg)
Photo Marco Cristini
![](/img/500/894719d11db05030d1dd6198f62b9362_7943.jpg)
![](/img/500/b6645b1aad077b657db649c5329198ee_7944.jpg)
![](/img/500/85d747a3294ccfe0bcca0d133e2ef5e2_7945.jpg)