Kalanchoe gastonis-bonnieri, , Hamet & Perrier de la Bathie, 1912

Smith, Gideon F., 2024, A reassessment of variation in Kalanchoe gastonis-bonnieri (Crassulaceae subfam. Cotyledonoideae), a pseudo-rosulate species from Madagascar: reinstatement of K. adolphi-engleri at the rank of varietas under K. gastonis-bonnieri, Phytotaxa 672 (3), pp. 277-284 : 282

Nomenclature of Kalanchoe gastonis-bonnieri var. adolphi-engleri

Kalanchoe gastonis-bonnieri Hamet & Perrier de la Bâthie (1912: 364) var. adolphi-engleri (Raym.-Hamet) Gideon F.Sm., comb. et stat. nov. ( Figs 3 & 4 )

Basionym :— Kalanchoe adolphi-engleri Raymond-Hamet (1955: 239) .

Type:— MADAGASCAR. Southeastern Madagascar , no date, Anonymous s.n. (lectotype, Herb. B barcode B 10 0153743; image of specimen available for examination online at http://herbarium.bgbm.org/object/ B100153743 ), lectotype designated by Smith et al. (2020: 100) .

Figures

FIGURE 3. The pseudo-rosulately-arranged leaves of Kalanchoe gastonis-bonnieri var. adolphi-engleri are largely devoid of the whitewaxy, floury material that covers the leaves of K. gastonis-bonnieri var. gastonis-bonnieri. The leaf surface maculation is generally inconspicuous in the case of K. gastonis-bonnieri var. adolphi-engleri. Photograph: Gideon F. Smith.

FIGURE 4. In the case of K. gastonis-bonnieri var. adolphi-engleri, i.e., the variant of the species that is largely devoid of the floury, white-waxy coating on the leaves, the calyx and corolla are often uniformly bright purplish red, especially once flowers have reached anthesis. Photograph: Gideon F. Smith.