Abstract
The partial infrageneric classification systems proposed for Kalanchoe (Crassulaceae subfam. Kalanchooideae) by Boiteau and Boiteau & Mannoni during the mid-20th century are analysed. The pertinent work of Boiteau published in 1947, as subsequently elaborated on by Boiteau & Mannoni in the late-1940s, is assessed to clarify the use of infrageneric ranks by these authors. From this analysis it is evident that, with the exception of two new combinations published by Boiteau in 1947 at the rank of section and two at the rank of subsection, and one unranked infrageneric name published by Boiteau & Mannoni in 1949, none of the other infrageneric designations that they proposed was validly published.
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<p>Persoon, C.H. (1805 [1 April–15 June]) <em>Synopsis plantarum, seu enchiridium botanicum, complectens enumerationem systematicam specierum hucusque cognitorum</em>. Pars prima. Apud Carol. Frid. Cramerum, Parisiis lutetiorum [Paris] et apud J.G. Cottam, Tubingæ [London], 546 pp. https://doi.org/10.5962/bhl.title.638</p>
<p>Raymond-Hamet. (1913 [31 December]) Sur un <em>Kalanchoe</em> nouveau de l’Herbier de Stockholm. <em>Arkiv för Botanik</em> 13 (11): 1–5; avec Planche 1. [<em>Kalanchoe lindmanii</em> Raym.-Hamet]. [https://www.biodiversitylibrary.org/item/91462#page/735/mode/1up]</p>
<p>Raymond-Hamet. (1933) Observations sur le <em>Kalanchoe uniflora</em> (Stapf) Raymond-Hamet. <em>Bulletin de la Société Botanique de France</em> 80 (4): 542–548. https://doi.org/10.1080/00378941.1933.10833878</p>
<p>Raymond-Hamet & Perrier de la Bâthie, J.M.H.A. (1914) Nouvelle contribution à l’étude des Crassulacées malgaches. <em>Annales du Musée Colonial de Marseille</em>, sér. 3, 2: 113–207. [https://www.biodiversitylibrary.org/item/23004#page/551/mode/1up]</p>
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<p>Scott Elliot, G.F. (1891 [22 August]) New and little-known Madagascar plants, collected and enumerated by G.F. Scott Elliot. (Plates I.–XII.). <em>Journal of the Linnean Society. Botany. London</em> XXIX: 1–67; Plate 3 is of <em>Kalanchoe verticillata</em> Scott Elliot. [https://www.biodiversitylibrary.org/item/8386#page/9/mode/1up]</p>
<p>Shtein, R. & Smith, G.F. (2021) A revision of the climbing kalanchoes (Crassulaceae subfam. Kalanchooideae) of Madagascar including the description of <em>Kalanchoe </em>sect. <em>Invasores </em>and <em>K</em>. ser. <em>Vilana</em>. <em>Phytotaxa</em> 482 (2): 93–120. https://doi.org/10.11646/phytotaxa.482.2.1</p>
<p>Shtein, R., Klein, D.-P. & Smith, G.F. (2021a) A new status for two varieties previously included in the southern Malagasy<em> Kalanchoe rosei</em>, now included in <em>K. variifolia</em> (Crassulaceae subfam. Kalanchooideae). <em>Phytotaxa</em> 496 (3): 228–244. https://doi.org/10.11646/phytotaxa.496.3.2</p>
<p>Shtein, R., Smith, G.F. & Klein, D.-P. (2021b) The real identity of the Malagasy <em>Kalanchoe rosei</em> (Crassulaceae subfam. Kalanchooideae) finally resolved, and the description of a new species, <em>K. perrieri</em>. <em>Phytotaxa</em> 502 (3): 259–276. https://doi.org/10.11646/phytotaxa.502.3.4</p>
<p>Smith, G.F. (2019) Notes on <em>Kalanchoe ×houghtonii</em> (Crassulaceae subfam. Kalanchooideae), an early hybrid between two species of <em>K</em>. subg. <em>Bryophyllum</em>. <em>Haseltonia</em> 26: 78–85.</p>
<p>Smith, G.F. (2020a) <em>Kalanchoe</em> Adans. subg. <em>Fernandesiae</em> Gideon F.Sm. (Crassulaceae subfam. Kalanchooideae), a new subgenus from southern and south-tropical Africa. <em>Haseltonia</em> 27: 2–7. https://doi.org/10.2985/026.027.0101</p>
<p>Smith, G.F. (2020b) Taxonomy and nomenclature of <em>Kalanchoe ×laetivirens</em> (Crassulaceae subfam. Kalanchooideae), a further invasive nothospecies from Madagascar. <em>Phytotaxa</em> 460 (1): 97–109. https://doi.org/10.11646/phytotaxa.460.1.6</p>
<p>Smith, G.F. (2020c) The kalanchoes (Crassulaceae subfam. Kalanchooideae) of Raymond-Hamet (1890–1972). <em>Bradleya</em> 38: 120–140. https://doi.org/10.25223/brad.n38.2020.a15</p>
<p>Smith, G.F. (2020d) Typification of the infrageneric names published in <em>Kalanchoe</em> (Crassulaceae subfam. Kalanchooideae) by Alwin Berger. <em>Phytotaxa</em> 453 (1): 52–54. https://doi.org/10.11646/phytotaxa.453.1.6</p>
<p>Smith, G.F. (2021a). Reinstatement of <em>Kalanchoe</em> [subg. <em>Bryophyllum</em>] sect. <em>Alatae</em> (Crassulaceae subfam. Kalanchooideae) for <em>K. porphyrocalyx</em> and <em>K. uniflora</em>, two Madagascan endemics. <em>Bradleya</em> 39: 177–181.</p>
<p>Smith, G.F. (2021b) Nomenclatural novelties published in <em>Kalanchoe</em> (Crassulaceae subfam. Kalanchooidee) by Boiteau and Allorge-Boiteau in 1995. <em>Phytotaxa</em> 496 (2): 201–207. https://doi.org/10.11646/phytotaxa.496.2.10</p>
<p>Smith, G.F. & Figueiredo, E. (2018a) The infrageneric classification and nomenclature of <em>Kalanchoe</em> Adans. (Crassulaceae), with special reference to the southern African species. <em>Bradleya</em> 36: 162–172. https://doi.org/10.25223/brad.n36.2018.a10</p>
<p>Smith, G.F. & Figueiredo, E. (2018b) <em>Kalanchoe crouchii</em> Gideon F.Sm. & Figueiredo (Crassulaceae), a new species from the dolomites of the Wolkberg Centre of Endemism, Mpumalanga Province, South Africa. <em>Haseltonia</em> 25: 84–90.</p>
<p>Smith, G.F. & Figueiredo, E. (2018c) Nomenclatural notes on <em>Kalanchoe pinnata</em> (Lam.) Pers. (Crassulaceae). <em>Bradleya</em> 36: 220–223. https://doi.org/10.25223/brad.n36.2018.a18</p>
<p>Smith, G.F. & Figueiredo, E. (2019a) The taxonomy of <em>Kalanchoe laxiflora</em> Baker, a Madagascan species of Crassulaceae. <em>Bradleya</em> 37: 118–124. https://doi.org/10.25223/brad.n37.2019.a6</p>
<p>Smith, G.F. & Figueiredo, E. (2019b). <em>Kalanchoe porphyrocalyx</em> var. <em>sambiranensis</em>, a new variety in a Madagascan <em>Kalanchoe</em> (Crassulaceae subfam. Kalanchooideae). <em>Phytotaxa</em> 422 (2): 206–208. https://doi.org/10.11646/phytotaxa.422.2.8</p>
<p>Smith, G.F. & Figueiredo, E. (2020) A new status and combination in a Madagascan <em>Kalanchoe</em>, <em>K. brevicalyx</em> (Crassulaceae subfam. Kalanchooideae). <em>Phytotaxa</em> 450 (2): 243–245. https://doi.org/10.11646/phytotaxa.450.2.10</p>
<p>Smith, G.F. & Figueiredo, E. (2021a). <em>Kalanchoe serrata</em>. Crassulaceae subfam. Kalanchooideae. Madagascar. <em>Flowering Plants of Africa</em> 67: 104–113, plate 2370.</p>
<p>Smith, G.F. & Figueiredo, E. (2021b) The taxonomy and nomenclature of <em>Kalanchoe streptantha</em> Baker (Crassulaceae subfam. Kalanchooideae). <em>Bradleya</em> 39: 195–201. https://doi.org/10.25223/brad.n39.2021.a20</p>
<p>Smith, G.F., Figueiredo, E. & Bernhard, S. (2019b) Taxonomy of the Madagascan <em>Kalanchoe serrata</em> Mannoni & Boiteau (Crassulaceae). <em>Bradleya</em> 37: 125–132. https://doi.org/10.25223/brad.n37.2019.a7</p>
<p>Smith, G.F., Figueiredo, E. & Crouch, N.R. (2021c) <em>Kalanchoe crouchii</em>. Crassulaceae: Kalanchooideae. Mpumalanga, South Africa. <em>Flowering Plants of Africa</em> 67: 60–68, plate 2366.</p>
<p>Smith, G.F., Figueiredo, E. & Shtein, R. (2021d) <em>Kalanchoe manginii</em>. Crassulaceae: Kalanchooideae. Madagascar. <em>Flowering Plants of Africa</em> 67: 70–79, plate 2367.</p>
<p>Smith, G.F., Figueiredo, E. & Van Wyk, A.E. (2019a) Kalanchoe <em>(Crassulaceae) in southern Africa. Classification, biology, and cultivation</em>. Academic Press, an imprint of Elsevier, London, San Diego, Cambridge (USA), and Oxford, x, 328 pp.</p>
<p>Smith, G.F., Klein, D.-P. & Shtein, R. (2021b) A revision of the Malagasy <em>Kalanchoe</em> subg. <em>Kitchingia</em> (Crassulaceae subfam. Kalanchooideae): history, taxonomy, and nomenclature. <em>Phytotaxa</em> 507 (1): 67–80. https://doi.org/10.11646/phytotaxa.507.1.3</p>
<p>Smith, G.F. & Shtein, R. (2021a) Nomenclature and taxonomic placement of the infraspecific taxa recognised in the Madagascan <em>Kalanchoe miniata</em> (Crassulaceae subfam. Kalanchooideae) by Perrier de la Bâthie and Boiteau and Mannoni in the 20<sup>th</sup> century. <em>Phytotaxa</em> 514 (2): 118–128. https://doi.org/10.11646/phytotaxa.514.2.3</p>
<p>Smith, G.F. & Shtein, R. (2021b) Taxonomic notes on <em>Kalanchoe porphyrocalyx</em> (Crassulaceae subfam. Kalanchooideae) and its horticultural derivatives. <em>Phytotaxa</em> 478 (2): 225–238. https://doi.org/10.11646/phytotaxa.478.2.4</p>
<p>Smith, G.F. & Shtein, R. (2021c) Typification of the name <em>Kalanchoe daigremontiana</em> (Crassulaceae subfam. Kalanchooideae). <em>Phytotaxa</em> 494 (2): 244–249. https://doi.org/10.11646/phytotaxa.494.2.8</p>
<p>Smith, G.F. & Shtein, R. (2021d) Clarifying the typification of the names <em>Kalanchoe fedtschenkoi</em> and <em>K. waldheimii</em> (Crassulaceae subfam. Kalanchooideae), two leaf-succulent shrubs indigenous to Madagascar. <em>Phytotaxa</em> 509 (1): 131–134. https://doi.org/10.11646/phytotaxa.509.1.9</p>
<p>Smith, G.F., Shtein, R. & Klein, D.-P. (2021a) <em>Kalanchoe</em> subg. <em>Alatae</em> (Crassulaceae subfam. Kalanchooideae), a new rank for <em>K</em>. sect. <em>Alatae</em>. <em>Phytotaxa</em> 509 (2): 255–258. https://doi.org/10.11646/phytotaxa.509.2.9</p>
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