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Type: Article
Published: 2023-07-20
Page range: 280-288
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Kalanchoe krigeae (K. subg. Kalanchoe; Crassulaceae subfam. Kalanchooideae), a new, small-growing species from northeastern South Africa split off from K. rotundifolia

Ria Olivier Herbarium, Department of Botany, Nelson Mandela University, P.O. Box 77000, Gqeberha, 6031 South Africa.
Ria Olivier Herbarium, Department of Botany, Nelson Mandela University, P.O. Box 77000, Gqeberha, 6031 South Africa.
Kalanchoe decumbens Kalanchoe rotundifolia Mpumalanga province Wolkberg Centre of Endemism Eudicots


A new species of Kalanchoe (Crassulaceae subfam. Kalanchooideae), K. krigeae, is described from the Mpumalanga province in northeastern South Africa. Virtually the entire natural geographical distribution range of the species falls within the species-rich Wolkberg Centre of Endemism, to which it is near-endemic. In terms of vegetative morphology, especially its lanceolate-cymbiform to narrowly oblong-terete leaves, K. krigeae is similar to the recently reinstated K. decumbens, but its leaves are generally firmer and broader, and the natural geographical distribution ranges of the two species are separated by about 500 km. Kalanchoe krigeae further differs markedly from K. rotundifolia, which generally has an overall leaf shape that varies somewhat from nearly round to oblong-elliptic to elliptic-obovate. The new species differs from both K. decumbens and K. rotundifolia by being a light green to very light glaucous entity, while plants of K. rotundifolia are glaucous to dull light yellowish green and those of K. decumbens are generally uniformly light green. The reproductive morphology of K. krigeae is constant in terms of the size and shape of the corolla tube and lobes, with the distal part of the corolla tube and proximal part of the corolla lobes invariably becoming tightly twisted post-anthesis, as in K. decumbens and K. rotundifolia. Kalanchoe krigeae presents a combination of vegetative and reproductive morphological characters that warrants its recognition at species rank.


  1. Adanson, M. (1763 [July–August]) Familles des plantes. Contenant une Préface Historike fur l’état ancien & actuel de la Botanike, & une Téorie de cette Science. II. Partie. Chez Vincent, Imprimeur-Libraire de Mgr le Comte de Provence, rue S, Severin, Paris, 640 pp. []
    Baker, J.G. (1881 [21 February]) Notes on a collection of flowering plants made by L. Kitching, Esq., in Madagascar in 1879 (Plates VII. & VIII.). Journal of the Linnean Society, Botany 18: 264–281. []
    Bentham, G. (1841 [“1842”]) XIV.—Notes on Mimoseæ, with a short synopsis of species. [IX. Elephantorrhiza, Gen. Nov. on pp. 344–345.] Journal of Botany 4: 323–418. []
    Berger, A. (1930 [Mai]) Crassulaceae. Unterfam. II. Kalanchoideae [sic, Kalanchooideae]. 6. Kalanchoe Adanson. 7. Kitchingia Baker. 8. Bryophyllum Salisb. In: Engler, A. & Prantl, K. (eds.) Die natürlichen Pflanzenfamilien. edn 2, 18a. Verlag von Wilhelm Engelmann, Leipzig, pp. 378–386, 402–412.
    Brown, N.E. (1913) 1436. Kalanchoe sexangularis. In: XVII—Diagnoses Africanae LIII. Bulletin of Miscellaneous Information, Kew 1913 (3): 120–121. []
    Compton, R.H. (1967) Plantae novae Africanae. Series XXXII. Journal of South African Botany 33: 293–304. []
    Crouch, N.R. & Figueiredo, E. (2022) Kalanchoe gideonsmithii (K. subg. Kalanchoe; Crassulaceae subfam. Kalanchooideae), a further new species endemic to the Maputaland-Pondoland Region of Endemism in KwaZulu-Natal, eastern South Africa. Phytotaxa 566 (2): 233–241.
    Crouch, N.R., Smith, G.F., Walters, M. & Figueiredo, E. (2016) Kalanchoe winteri Gideon F.Sm., N.R.Crouch & Mich.Walters (Crassulaceae), a new species from the Wolkberg Centre of Endemism, South Africa. Bradleya 34: 217–224.
    Figueiredo, E. & Smith, G.F. (2017) Notes on the discovery and type of Kalanchoe rotundifolia (Haw.) Haw. (Crassulaceae). Bradleya 35: 106–112.
    Grobler, A. & Van Wyk, A.E. (2010) Taxonomic status of Elephantorrhiza rangei (Mimosoideae). Bothalia 40 (2): 193–194.
    Haworth, A.H. (1824 [September]) XXXI. Decas novarum Plantarum Succulentarum. (“Mr Haworth’s Decade of new Succulent Plants.”). The Philosophical Magazine and Journal 64: 184–191.
    Haworth, A.H. (1825 [06 July]) III. Decas quarta novarum Plantarum Succulentarum (“Mr Haworth’s Fourth Decade of new Succulent Plants.”). The Philosophical Magazine and Journal 66: 27–33.
    IPNI. (2022+) The International Plant Names Index. Available from: (continuously updated; accessed 2022).
    Koorders, S.H. (1919 [Mai] [24 October 1918]) Beitrag zur Kenntniss der Flora von Java No. 18. Beschreibung von Kalanchoë Schumacheri vom Idjen-Plateau und Revision der Crassulaceae von Java. (Mit 2 lithographischen Tafeln.). Bulletin du Jardin Botanique de Buitenzorg, sér. 3, 1 (3): 169–180, Figures 14 and 15. [ (text); (figures)]
    Krige, A. & Van Wyk, B. (2005) The mystery of the silver vegetation. Veld & Flora 91 (3): 134–137.
    Linnaeus, C. (1753) Species plantarum, exhibentes plantas rite cognitas, ad generarelatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. Vol. 1. Salvius, Stockholm, 560 pp.
    Raymond-Hamet. (1916) Sur un groupe de transition reliant le genre Kalanchoe au genre Cotyledon. Revue Générale de Botanique. Paris XXVIII: 80–84. []
    Raymond-Hamet. (1933) Observations sur le Kalanchoe uniflora (Stapf) Raymond-Hamet. Bulletin de la Société Botanique de France 80 (4): 542–548.
    Salisbury, R.A. (1805 [1 June 1805]) The Paradisus Londinensis: or coloured figures of plants cultivated in the vicinity of the metropolis 1. Published by William Hooker, No. 6, Frith Street, city not stated, presumably London, 157 pp. & 117 plates.
    Smith, G.F. (2020a) The kalanchoes (Crassulaceae subfam. Kalanchooideae) of Raymond-Hamet (1890–1972). Bradleya 38: 120–140.
    Smith, G.F. (2020b) Kalanchoe Adans. subg. Fernandesiae Gideon F.Sm. (Crassulaceae subfam. Kalanchooideae), a new subgenus from southern and south-tropical Africa. Haseltonia 27: 2–7.
    Smith, G.F. (2021a) Reinstatement of Kalanchoe decumbens Compton (Crassulaceae subfam. Kalanchooideae), an endemic species from eastern southern Africa. Bradleya 39: 163–171.
    Smith, G.F. (2021b) Reinstatement of Kalanchoe [subg. Bryophyllum] sect. Alatae (Crassulaceae subfam. Kalanchooideae) for K. porphyrocalyx and K. uniflora, two Madagascan endemics. Bradleya 39: 177–181.
    Smith, G.F. (2022a) A review of the ecology and natural history of Kalanchoe (Crassulaceae subfam. Kalanchooideae) in southern Africa. Bradleya 40: 161–184.
    Smith, G.F. (2022b) Notes on Kalanchoe subg. Bryophyllum (Crassulaceae subfam. Kalanchooideae) and the kalanchoes of Sijfert H. Koorders (1919). Phytotaxa 549 (1): 87–96.
    Smith, G.F. (2022c) Kalanchoe sect. Raveta (Crassulaceae subfam. Kalanchooideae) of Raymond-Hamet (1916): a long-overlooked name in K. subg. Kalanchoe. Phytotaxa 550 (2): 208–212.
    Smith, G.F. (2022d) Date and place of publication and author attribution of the combination Kalanchoe sect. Raveta (Crassulaceae subfam. Kalanchooideae). Phytotaxa 560 (1): 131–134.
    Smith, G.F. (2023) A reassessment of combinations previously proposed or published for Kalanchoe subg. Alatae (Crassulaceae subfam. Kalanchooideae), and its valid publication at the rank of subgenus. Phytotaxa 585 (1): 61–66.
    Smith, G.F. & Crouch, N.R. (2021) Kalanchoe benbothae (K. subg. Fernandesiae; Crassulaceae subfam. Kalanchooideae), a new southern African species endemic to KwaZulu-Natal in the Maputaland-Pondoland Region of Endemism. Phytotaxa 521 (2): 105–112.
    Smith, G.F. & Figueiredo, E. (2017) Notes on Kalanchoe rotundifolia (Haw.) Haw. (Crassulaceae) in southern Africa: the taxonomy of a species complex. Haseltonia 23: 57–71.
    Smith, G.F. & Figueiredo, E. (2018a) The infrageneric classification and nomenclature of Kalanchoe Adans. (Crassulaceae), with special reference to the southern African species. Bradleya 36: 162–172.
    Smith, G.F. & Figueiredo, E. (2018b) Kalanchoe crouchii Gideon F.Sm. & Figueiredo (Crassulaceae), a new species from the dolomites of the Wolkberg Centre of Endemism, Mpumalanga Province, South Africa. Haseltonia 25: 84–90.
    Smith, G.F. & Figueiredo, E. (2021) The floristics and phytogeography of Kalanchoe Adans. (Crassulaceae subfam. Kalanchooideae) in the Waterberg Biosphere Reserve, northern South Africa. Bradleya 39: 207–220.
    Smith, G.F. & Figueiredo, E. (2022a) Refining the circumscription of a variable species: epitypification of the name Kalanchoe rotundifolia (Crassulaceae subfam. Kalanchooideae). Phytotaxa 555 (1): 109–112.
    Smith, G.F. & Figueiredo, E. (2022b) Kalanchoe klopperae (Crassulaceae subfam. Kalanchooideae), a southern African species newly distinguished from K. rotundifolia. Novon 30: 104–109.
    Smith, G.F., Figueiredo, E. & Crouch, N.R. (2021a) Expanding the known geographical distribution range of Kalanchoe waterbergensis (Crassulaceae subfam. Kalanchooideae) in northern South Africa. Bradleya 39: 172–176.
    Smith, G.F., Figueiredo, E. & Van Wyk, A.E. (2019) Kalanchoe (Crassulaceae) in southern Africa. Classification, biology, and cultivation. Academic Press, an imprint of Elsevier, London, San Diego, Cambridge (USA), and Oxford, 328 pp.
    Smith, G.F., Klein, D.-P. & Shtein, R. (2021c) A revision of the Malagasy Kalanchoe subg. Kitchingia (Crassulaceae subfam. Kalanchooideae): history, taxonomy, and nomenclature. Phytotaxa 507 (1): 67–80.
    Smith, G.F. & Monro, A.M. (2022a) The nomenclature and taxonomy of Crassulaceae subfam. Kalanchooideae resolved. Phytotaxa 555 (3): 241–251.
    Smith, G.F. & Monro, A.M. (2022b) (2908) Proposal to reject the name Crassulaceae subfam. Cotyledonoideae (Crassulaceae). Taxon 71 (4): 910–911.
    Smith, G.F. & Shtein, R. (2021) The identity of Kalanchoe stearnii (Crassulaceae subfam. Kalanchooideae). Phytotaxa 478 (2): 295–300.
    Smith, G.F., Shtein, R. & Klein, D.-P. (2021b) Kalanchoe subg. Alatae (Crassulaceae subfam. Kalanchooideae), a new rank for K. sect. Alatae. Phytotaxa 509 (2): 255–258.
    Smith, G.F., Shtein, R., Klein, D.-P., Parihar, B., Almeida, A., Rodewald, S. & Kadereit, G. (2021d) Sexual and asexual reproduction in Kalanchoe (Crassulaceae subfam. Kalanchooideae): a review of known and newly recorded strategies. Haseltonia 28: 2–22.
    Thiers, B. (2022 [continuously updated]) Index herbariorum: a global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: (accessed 2022).
    Tölken, H.R. (1985) Crassulaceae. 3166, 4. Kalanchoe. 3166a, 5. Bryophyllum. In: Leistner, O.A. (ed.) Flora of Southern Africa 14. Botanical Research Institute, Department of Agriculture and Water Supply, place of publication not stated, likely Pretoria, pp. 61–74.
    Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.-H., Li, D.-Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (2018) International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. [Regnum Vegetabile 159] Koeltz Botanical Books, Glashütten, 254 pp.
    Van Jaarsveld, E.J. (2017) Kalanchoe waterbergensis, a new Kalanchoe species from the Waterberg, Limpopo province, South Africa. Bradleya 35: 166–170.
    Van Jaarsveld, E.[J.] & Koutnik, D. [with illustrations by E. Bodley & L. Strachan]. (2004) Cotyledon and Tylecodon. Umdaus Press, Hatfield, Pretoria, 156 pp.
    Van Wyk, A.E. & Smith, G.F. (2001) Regions of floristic endemism in southern Africa. A review with emphasis on succulents. Umdaus Press, Hatfield, Pretoria, 199 pp.