Kalanchoe
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AURICULATA   (Raadts) Byalt, 2008  (engl./ fr.)

Synonym : Kalanchoe nyikae ssp. auriculata Raadts (1977)

Distribution : Southeast Kenya, northern Tanzania; dense or open bushland, usually on rocky ground or stony slopes, 700 - 1800 m.

Description

 

Leaves with lamina auriculate or cordate, to 15 x 12 cm, tip obtuse, base sometimes lobed, margins crenate, glaucous, usually mottled mauve-brown beneath, petiole 3 - 10 cm.

In all other respects similar to K. nyikae.

Cytology : 2n = 68

Note :

The chromosome number of K. auriculata (2n = 68) differs from that of K. nyikae (2. = 34). According to Raadts this suggests that K. auriculata could be of hybrid origin : K. nyikae (2n = 34) x K. spec. (2n = 102), possibly K. glaucescens. However the somewhat similar K. peteri has also a chromosome number of 2n = 68. In any case Raadts considered what she published as K. nyikae ssp. auriculata a stabilized hybrid and suggested that it deserves in fact species rank. 


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Distribution : Sud-est du Kenya, nord de la Tanzanie ; broussailles denses ou ouvertes, habituellement sur sol rocheux ou pentes caillouteuses, 700 - 1800 m.

 

Description :

Feuilles au limbe auriculé ou cordé, jusqu'à 15 x 12 cm, extrémité obtuse, base parfois lobée, avec marge crénelée, glauques, généralement tachetées de marron-mauve dessous, pétiole de 3 - 10 cm.

À tous autres égards ressemblant à K. nyikae.

Cytologie : 2n = 68




Photos Margrit Bischofberger




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