Phytotaxa

**The name to be used for the most invasive species of Kalanchoe globally finally resolved: nomenclature and taxonomy of the Malagasy Kalanchoe delagoensis (Crassulaceae subfam. Cotyledonoideae)**

2024-06-20T02:27:36+12:00

For the past nearly 190 years, uncertainty has surrounded the correct name that has to be used for the species of Kalanchoe (Crassulaceae subfam. Cotyledonoideae) most commonly recorded as weedy, naturalised, or invasive in, especially, mild-climate parts of the world well away from its natural habitat in Madagascar. Two names, K. delagoensis (published in 1837 by Ecklon & Zeyher) and K. tubiflora (published in 1912 by Raymond-Hamet), were, up to now, widely used for this species. In its protologue, the name K. delagoensis was furnished with a very cryptic, three-word descriptive statement that has resulted in this name not having been adopted by many authors on Kalanchoe because the name was considered as not having been validly published. For this reason and to resolve this matter, a request for a binding decision on whether the name K. delagoensis was validly published (in 1837 by Ecklon and Zeyher; the name K. tubiflora was undoubtedly validly published in 1912, based on Bryophyllum tubiflorum) was submitted for consideration by the Nomenclature Committee for Vascular Plants (NCVP). The NCVP considered the matter and recommended that K. delagoensis was indeed validly published by Ecklon & Zeyher, which makes the name K. tubiflora, which was published 75 years later by Raymond-Hamet, nomenclaturally superfluous. The nomenclature associated with the name K. delagoensis is reviewed; its homo- and heterotypic synonymy is provided; the name K. verticillata, a heterotypic synonym of K. delagoensis, is lectotypified; and an amplified description and illustrations are provided of the species, as well as illustrations of the invasive K. ×houghtonii, of which it is one parent.

Cryptoporus qinlingensis sp. nov., the third species of Cryptoporus (Polyporaceae, Polyporales) from northwestern China

2024-10-21T03:05:24+13:00

The macrofungal genus Cryptoporus consists of only two species presently. Another species of the genus was collected from Qinling Mountains in northwestern China, and here described as a novel species based on morphological and phylogenetic evidence. In morphology, the novel species C. qinlingensis sp. nov. can be distinguished from related species by its relatively larger fruiting bodies (projecting up to 5.5 cm, 6.5 cm wide and 2.5 cm thick at base) with distinct odor of medicinal herbs when fresh, cream to reddish brown pileal surface, thick context (up to 1.5 cm thick), slim cystidioles (2.5–5.5 μm wide), host (pythogenesis on trunk of Pinus massoniana Lamb.) and sequence data. Phylogenetic analyses based on both ITS and multi-locus sequences (nLSU, tef1, mtSSU, rpb2 and nSSU) were carried out. Both morphological and molecular analyses confirm the distinct taxonomic status of C. qinlingensis.

Salvia gibbosa, S. gracilicaulis and S. ruizii (Lamiaceae), three new species from Peru

2024-08-23T17:15:18+12:00

Peru is the second American country in terms of species richness of the genus Salvia but such diversity seems to be stabilized when compared with that in other American countries with continuous findings of new Salvia species. This is probably an artifact reflecting the need to intensify the study of the genus in the country and several taxonomic novelties are predicted. In fact, recent botanical explorations in northern Peru have led to the discovery of three new species unmatched with any of the known salvias, which are here consequently supported as new additions to the Peruvian Flora: Salvia gibbosa, S. gracilicaulis and S. ruizii. Descriptions, diagnostic characters, photographs and a distribution map are presented to support the proposal of these new species.

Coniolepiota alexandri (Agaricaceae, Basidiomycota), a new species in the formerly monotypic genus and a new record of C. spongodes, from Vietnam

2024-05-23T12:05:54+12:00

Coniolepiota, a genus within the family Agaricaceae, described in 2011, has been considered monotypic, embracing one species, C. spongodes, distributed in tropical Asia. Based on the morphological study and molecular analysis, two species of Coniolepiota viz. C. spongodes and C. alexandri are recognized from Southern Vietnam. Coniolepiota spongodes, a new record to Bu Gia Map National Park (Binh Phuoc), possesses attractive lilac basidiomata of medium size with flocculose squamules, white spores, and T-shaped pileal elements. Coniolepiota alexandri, proposed as a new species from Cat Tien National Park (Dong Nai), shares all the features listed above but has a different colour (white) of basidiomata. Detailed descriptions of the new species and the new record are presented herein. Field photographs of the collected basidiomata, illustrations of the microscopic structures, and phylogenetic trees generated from datasets of nrITS and LSU sequences, are provided.

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

2024-09-06T19:30:03+12:00

Variation found in the Malagasy Kalanchoe gastonis-bonnieri (Crassulaceae subfam. Cotyledonoideae) is discussed. Kalanchoe adolphi-engleri, previosuly included in the synonymy of K. gastonis-bonnieri, is here reinstated under K. gastonis-bonnieri, at the rank of varietas. Kalanchoe gastonis-bonnieri var. adolphi-engleri is applied to material that is largely devoid of a dense, white-waxy pruinosity; has generally inconspicuous leaf surface maculation; and a corolla tube and corolla lobes that are often nearly uniformly reddish purple.

The nomenclature associated with the name Kalanchoe arborescens (Crassulaceae subfam. Cotyledonoideae), the type of which is the type of K. subg. Calophygia

2024-09-06T17:15:47+12:00

Although the vast majority of kalanchoes are low-growing herbs or medium-sized shrubs, in terms of growth form a small group of four Malagasy kalanchoes (Crassulaceae subfam. Cotyledonoideae) attain arborescent dimensions. These are Kalanchoe arborescens, K. beharensis, K. dinklagei, and K. grandidieri. All four species are endemic to southern Madagascar. The type of the name of one of these, the aptly named K. arborescens, is the type of the recently reinstated K. subg. Calophygia. The nomenclature of K. arborescens is revisited and corrected. The second-step lectotype of the name K. arborescens designated here is illustrated.

The correct name for the subfamily containing Kalanchoe is Crassulaceae subfam. Cotyledonoideae, and not Crassulaceae subfam. Kalanchooideae, with amendment of the circumscription of Crassulaceae subfam. Cotyledonoideae

2024-09-06T20:03:08+12:00

In 2022, a proposal to reject the subfamily name Crassulaceae subfam. Cotyledonoideae was submitted, through publication, as is required in the currently operative International Code of Nomenclature for algae, fungi, and plants, to the General Committee (GC), and through that body, automatically to the (Permanent) Nomenclature Committee for Vascular Plants (NCVP). Drafting and publication of the rejection proposal was undertaken because, despite having priority, the name Crassulaceae subfam. Cotyledonoideae, has not been used in the taxonomic literature relating to the family for the past 30 years. Rather, virtually all the published studies on the Crassulaceae that referenced subfamilies used Crassulaceae subfam. Kalanchooideae, for which the informal name “Kalanchoe clade” has been used exclusively in phylogenetic studies of the Crassulaceae. However, the NCVP (in February 2024) recommended against the proposal to reject the name Crassulaceae subfam. Cotyledonoideae. This recommendation was submitted to the GC, which supported the NCVP and rejected the rejection proposal (in July 2024), despite an appeal against this outcome having been lodged (in February 2024). The further procedural treatment of the report of the GC is discussed in this paper. The outcome of the proposal having been rejected is that the subfamily name Crassulaceae subfam. Cotyledonoideae must be adopted in the stead of the subfamily name Crassulaceae subfam. Kalanchooideae for a group of four predominantly, but not exclusively, southern African genera, i.e., Adromischus, Cotyledon, Kalanchoe, and Tylecodon. Kalanchoe in particular has a wider natural geographical distribution range. Since the original circumscription of Crassulaceae subfam. Cotyledonoideae included a disparate group of six southern and northern hemisphere genera, a further outcome of the proposal having been rejected is that the circumscription of this subfamily must be amended. This is done here.

**A replacement name for Magnolia multinervia (Magnoliaceae)**

2024-11-03T21:26:35+13:00

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