Recent molecular phylogenetic studies showed that the genus Sansevieria (excluding S. sambiranensis) forms a monophyletic clade nested within paraphyletic Dracaena. Consequently, was sunk into Dracaena and new combinations were published to accommodate transfer of taxa from Since inclusion Dracaena, have been in Sansevieria. This paper presents fourteen name changes including twelve two rank adjustments, one synonym, lectotypification aiming at further standardisation taxonomy

Recently Altamiranoa Rose (-- Villadia sect. (Rose) R. T. Clausen) was merged with Sedum L. For four Peruvian species without valid names in we propose three new combinations: decipiens (Baker) Thiede & 't Hart, reniforme (H. Jacobsen) and weberbaueri (Diels) one name, plicatum 8 Hart. A lectotype is designated for Cotyledon Bak- er, the basionym of decipiens. (in Britton Rose, 1903: 3) described genera to ac- commodate some Mexican Crassulaceae sym- petalous flowers. Previously these had...

Abstract The phylogenetic position and circumscription of the disjunct African genus Tribulocarpus is investigated with DNA sequences from plastid rps16 trnL‐F , nuclear ITS. Representatives all four subfamilies Aizoaceae are included in analyses, most them Aizooideae Sesuvioideae. as sister to rest Sesuvioideae confirmed, we agree that should be referred this subfamily. Tetragonia retusa found part clade strong support. A new taxonomy two species proposed combination retusus made. lectotype...

An updated infrageneric classification is provided for the genus Agave L. s.l., therefore including A. subg. Manfreda, i.e., genera Manfreda Salisb., Polianthes L., and Prochnyanthes S.Watson (Asparagaceae: Agavoideae / Agavaceae), with emphasis on rank of section. Nomenclatural assessments are (1) all unranked ‘group’ names introduced by Trelease (1913) Caribbean region, (2) Gentry (1982) continental North America, (3) taxa at sectional hitherto published in Salm-Dyck, Engelmann, Berger,...

Background – Species of Agave and Furcraea (Agavaceae, Asparagaceae s. lat.) are widely cultivated as ornamentals in Mediterranean climates. An increasing number is escaping naturalising, also natural habitats the Canary Islands (Spain). However, a detailed treatment variously naturalised invasive species found wild not available and, result, identification often problematic.Methods The present study based on many years fieldwork islands Fuerteventura, Gran Canaria, Lanzarote Tenerife....

Thulin M., Rydberg A. & Thiede J.: Identity of Tetragonia pentandra and taxonomy distribution Patellifolia (Chenopodiaceae). — Willdenowia 40: 5–11. Online ISSN 1868-6397; © 2010 BGBM Berlin-Dahlem. doi:10.3372/wi.40.40101 (available via http//dx.doi.org/)The little-known pentandra, long regarded as a member Aizoaceae in the Horn Africa region, is included phylogenetic analysis using ITS sequence data members Betoideae Patellifolia, including strongly supported monophyletic weakly sister to...

Plants of Sedum album (Sedum ser. Alba; Crassulaceae) from Malta (Maltese Islands) differ previously known S. plants in having very rarely formed inflorescences mostly without peduncular leaves and floral bracts, flowers which (3–)5 stamens one whorl, the antepetalous one, have dysfunctional often abortive anthers only other whorl 5, dark maroon to blackish-brown, indehiscent at anthesis, pollen is partly deformed shrivelled, carpels nectary scales, fruits seeds remain undeveloped sterile....

Phylogenetic studies of Agave Linnaeus (1753: 323) and related genera (Asparagaceae, Agavoideae) thus far published were based either on molecular (Bogler & Simpson 1996; Bogler et al. 2006; Good-Ávila Scheinvar 2017) or morphological data (Hernández-Sandoval 1995; Tambutti in Eguiarte 2006). Most showed that the Manfreda Salisbury (1866: 78), Polianthes 316) Prochnyanthes Watson (1887: 457) are nested within large genus Agave, rendering as traditionally circumscribed (= s.str.)...

Considerations of morphology and geographical distribution suggest that two recently described infraspecific taxa Sansevieria pinguicula P.R.O. Bally were given inappropriate ranks. It is proposed subspecies disticha, occurring together with the type in habitat differing only one character, should be reduced to rank form. variety nana, which occurs at some considerable distance from differs three characters, raised subspecies.

Govaerts R. & Thiede J.: Transfer of Polianthes geminiflora into Agave (Asparagaceae): new combinations (Nomenclature II). — Willdenowia 43: 331–333. December 2013. ISSN 0511-9618; © 2013 BGBM Berlin-Dahlem. Stable URL: http//dx.doi.org/10.3372/wi.43.43215To accommodate the inclusion Agave, which is strongly supported by molecular phylogenetic studies, four for transfer and its infraspecific taxa are proposed. A lectotype selected Coetocapnia geminiflora, a neotype Robynsia geminiflora.

Abstract: In the framework of a monophyletic circumscription Agave L., twelve new combinations are proposed in L. (Agavaceae/Asparagaceae) for taxa published Manfreda Salisb., Polianthes or Bravoa Lex.

In an older paper, Reznik (1957) studied flower pigments from 37 Conophytum samples and found three main pigments: one betaxanthin (in with yellow flowers) two betacyanins (betanin 1 in purple flowers betanin 2 sample rose-purple flowers), as well 6 flavonols co-pigments. Here, the results related studies are compared more recent morphological-phylogenetic (Opel 2005b) regard to agreement or deviation respect subdivisions of genus Conophytum. The mutually exclusive distribution is...

Aloe arborescens is a widespread and variable species, characterized as much branched shrub 2–5m high by most authors. The remarkable single-stemmed, arborescent form endemic to Mount Mulanje (Malawi) has been largely ignored previously here described illustrated in detail. In its vegetative reproductive morphology, the falls within known range of variation, connected with typical shrubby growth intermediates; it considered mere variant not worthy formal taxonomic recognition but unique...

The history, introduction and distribution of Sansevieria burdettii in Malawi is described detail; the species was studied or reported by Theo Peter Campbell-Barker, Richard k. Brummitt, Horst Pfennig, Bruce J. Hargreaves, Mavis Scholes, Dave Richards, Philip E. Downs before it finally published as new Juan B. Chahinian 2000. documented from collections photographs Nkunguni Mt., Boadzulu Island (identity uncertain), Mpatamanga Gorge, kapichira Falls, literature / sight records report near...