Systematics and conservation of British and Irish orchids: a "state of the union" assessment to accompany Atlas 2020 Richard M. Bateman Review Open access 26 May 2022 Pages: 355 - 402
Taxonomic revision of Saxicolella (Podostemaceae), African waterfall plants highly threatened by Hydro-Electric projects Martin CheekDenise MolmouJean-Paul Ghogue Original Article Open access 30 May 2022 Pages: 403 - 433
Vepris onanae (Rutaceae), a new Critically Endangered cloud-forest tree species, and the endemic plant species of Bali Ngemba Forest Reserve, Bamenda Highlands Cameroon Martin CheekSebastian HattJean Michel Onana Original Article Open access 16 May 2022 Pages: 435 - 449
Two new species of Arctotis (Asteraceae: Arctotideae) from the Namaqualand Sandveld Bioregion, South Africa and reappraisal of the identity of Arctotis melanocycla Robert J. McKenzie Original Article 09 June 2022 Pages: 451 - 474
Two new species of Barleria (Acanthaceae) from the Soutpansberg of Limpopo Province, South Africa Iain DarbyshireKevin BalkwillWillem Froneman Original Article Open access 14 May 2022 Pages: 475 - 489
Begonia gregaria, a new species of Begonia sect. Quadrilobaria (Begoniaceae) from Northwest Madagascar David ScherberichMartine Bardot-Vaucoulon Original Article 24 May 2022 Pages: 491 - 495
Tetrathylacium vraem (Salicaceae), a new remarkable tree from the highly threatened forest in the southern Peruvian Amazon Isau Huamantupa-ChuquimacoMiguel Luza-VitorioMadeleine Méndez Estrada Original Article 27 May 2022 Pages: 497 - 503
Hiding behind the rocks: rediscovery of Connarus beyrichii (Connaraceae), an endangered species endemic to montane outcrops of southeast Brazil Cássio A. P. ToledoEve J. LucasVinicius Castro Souza Original Article 13 May 2022 Pages: 505 - 511
First records of Curarea (Menispermaceae) in Southeastern Brazil Pablo Fernando FelizThiago FernandesJoão Marcelo Alvarenga Braga Original Article 26 May 2022 Pages: 513 - 519
Strobilanthes Blume (Acanthaceae) in Myanmar, a new species and an updated checklist John R. I. WoodMu Mu AungKate E. Armstrong Original Article Open access 15 June 2022 Pages: 521 - 539
A revision of Alpinia sect. Myriocrater (Zingiberaceae) of the Philippines with a description of a new species Rudolph Valentino A. DocotCecilia I. Banag-MoranDanilo N. Tandang Original Article 27 May 2022 Pages: 541 - 553
A taxonomic revision of Santisukia Brummitt (Bignoniaceae) in Thailand Nattanon MeepromChatchai NgernsaengsaruayWeereesa Boonthasak Original Article 03 June 2022 Pages: 555 - 567
Studies in Asian Nervilia (Orchidaceae) VIII: N. hemratii, another new member of section Linervia from Thailand Stephan W. GaleNaiyana TetsanaSomran Suddee Original Article 14 May 2022 Pages: 569 - 574
Fraxinus schiedeana is the correct name for Fraxinus dubia (Willd. ex Schult. & Schult.f.) P.S.Green & M.Nee, nom. illeg. (Oleaceae) L. RasingamK. Karthigeyan Short Communication 30 May 2022 Pages: 575 - 576
Amischotolype neoscandens, a new name for A. scandens (Commelinaceae) Muhammad Idrees Short Communication 19 May 2022 Pages: 577 - 578