FIGURE 2 in Aspects of the taxonomy of the Kalanchoe daigremontiana species complex (Crassulaceae subfam. Kalanchooideae) and associated interspecific hybrids in southern Madagascar, with the description of a new nothospecies, K. ×descoingsii (=K. laetivirens × K. tubiflora)

FIGURE 2. Comparison between two forms of Kalanchoe ×houghtonii Morphotype D, which is alternatively treated as K. daigremontiana and potentially represent K. daigremontiana × K. ×houghtonii. Both forms lack the large, medially inflated, orange, red or magenta flowers of the other K. ×houghtonii Morphotypes discussed in this paper, the leaf arrangement generally remains decussate, and the leaf blade base is peltate when plants reach maturity. A–D. A form originating from the Toliara region, southern Madagascar, showing saddle-shaped, peltate leaf blade bases on mature leaves, subentire margins on leaves of young plants, abaxial maculation patterns resembling those of K. daigremontiana, and uniquely, sepals that are barely fused. E–H. Kalanchoe 'Parsel Tongue', reportedly a garden hybrid that arose spontaneously, showing funnel-shaped peltate leaf blade bases on mature leaves, dentate margins even on leaves of young plants, uniquely granular abaxial maculation patterns distinct from those of any other kalanchoe of the K. daigremontiana species complex, and sepals that are fused for half of their length, as observed in K. daigremontiana. Also note that these two forms differ significantly in the length of their corollae. Photographs: Ronen Shtein.