01265nas a2200217   4500008004100000022001400041245007000055210006700125300001400192490000800206520060500214653001800819653001500837653001600852653001500868100002400883700002700907700002200934700002200956856006900978       2019                        eng d  a1179-316300aPolyalthia khaoyaiensis (Annonaceae), a new species from Thailand0 aPolyalthia khaoyaiensis Annonaceae a new species from Thailand  a171–1790 v4053 aA new species, Polyalthia khaoyaiensis, is proposed based on materials from central Thailand. The species appears most similar to Polyalthia meghalayensis and Polyalthia evecta, differing from these taxa in having shorter pedicels and usually two (rather than one) ovules per carpel. From P. meghalayensis it differs further in absence of a claw from the inner petals. The new species is described and illustrated. The conservation status of the species is considered and it is given an assessment of Least Concern (LC), as it is locally common in the hill evergreen forest of Khao Yai National Park.10aIUCN Red List10aMagnoliids10anew species10aPOLYALTHIA1 aBunchalee, Pasakorn1 aChantaranothai, Pranom1 aJohnson, David, M1 aMurray, Nancy, A.  uhttps://www.biotaxa.org/Phytotaxa/article/view/phytotaxa.405.3.601174nas a2200205   4500008004100000022001400041245006900055210006700124300001400191490000700205520054900212653001500761653001600776653002000792653001300812653001900825100002200844700002200866856008000888       2019                        eng d  a2465-423X00aTwo new species of Xylopia (Annonaceae) from peninsular Thailand0 aTwo new species of Xylopia Annonaceae from peninsular Thailand  a264–2690 v473 aTwo previously undescribed species of Xylopia are documented from southern Thailand. Xylopia niyomdhamii is known from a small peat swamp area in Narathiwat Province. Xylopia microcalyx is restricted to the limestone region extending from Chumphon south to Trang and Phatthalung Provinces, an area with many other endemic Annonaceae species. We found that X. malayana s.s., although previously reported, is not present in the Thai flora. A key to X. malayana s.s. and the Thai species of Xylopia is presented to summarize our taxonomic changes.10aAnnonaceae10aMagnoliales10aSouth-East Asia10ataxonomy10atree diversity1 aJohnson, David, M1 aMurray, Nancy, A.  uhttps://www.tci-thaijo.org/index.php/ThaiForestBulletin/article/view/20867100460nas a2200145   4500008004100000245005700041210005500098300000700153490000700160100002200167700001800189700002200207700002200229856006300251       2017                        eng d00aNew species of Xylopia (Annonaceae) from East Africa0 aNew species of Xylopia Annonaceae from East Africa  a110 v721 aJohnson, David, M1 aLuke, Quentin1 aGoyder, David, J.1 aMurray, Nancy, A.  uhttp://link.springer.com/article/10.1007/s12225-017-9681-x02592nas a2200145   4500008004100000022001400041245007400055210006800129300001200197490000700209520213000216100002202346700002202368856005602390       2018                        eng d  a1314-200300aA revision of Xylopia L. (Annonaceae): the species of Tropical Africa0 arevision of Xylopia L Annonaceae the species of Tropical Africa  a1–2520 v973 aA revision of the 45 species of the pantropical genus Xylopia in Tropical Africa includes descriptions of six new species and a new section of the genus. The fruits and seeds of Xylopia show specializations that promote vertebrate dispersal, primarily by hornbills and monkeys. Over half of the African species have an Area of Occupancy (AOO) less than 80 km2, suggesting that they are in need of protection. African species are classified into five sections. Section Neoxylopia , with four species, is centered in the Guineo-Congolian Region and includes X. globosa sp. nov. Section Ancistropetala, with three species, occurs in the same region. Both of these sections are endemic to Africa. Section Xylopia, which extends to Madagascar and the American tropics, has only a single species in Africa, X. aethiopica. The three species of section Verdcourtia sect. nov. are restricted to the East African coast and Madagascar. The largest number of African species, (34) belong to section Stenoxylopia, in which the seeds lack the arils found in the other sections and instead have a fleshy sarcotesta. Section Stenoxylopia is divided into two informal groups, one centered in eastern and southern Africa (X. odoratissima group) and the other centered in the wetter forests of western and central Africa (X. acutiflora group). Five new species are described in section Stenoxylopia: Xylopia nilotica sp. nov. from Sudan, South Sudan, and Uganda, Xylopia calva sp. nov. from Nigeria and Cameroon, which is allied to X. phloiodora, and Xylopia monticola sp. nov. from Nigeria and Cameroon, X. piratae sp. nov. from Ivory Coast and Ghana, and X. unguiculata sp. nov. from Gabon. The latter three species are segregates of the former Xylopia acutiflora s. l. One new combination is made at the species level, X. shirensis comb. nov. Keys, descriptions, illustrations, distribution maps, and an index to numbered collections document diversity and assist with species identification. The name Unona oliveriana Baill. was found to pre-date the name Unona lepidota Oliv., requiring the combination Meiocarpidium oliverianum comb. nov.1 aJohnson, David, M1 aMurray, Nancy, A.  uhttps://phytokeys.pensoft.net/articles.php?id=20975