00859nas a2200109 4500008004100000245006300041210005900104490001100163520051100174100001500685856004900700 1991 eng d00aA revision of Philodendron subgenus Meconostigma (Araceae)0 arevision of Philodendron subgenus Meconostigma Araceae0 v46 (4)3 a

Philodendron subgenus Meconostigma is defined and described taxonomically and a revision of the 15 recognized species is presented; two new species, P. dardanianum and P. uliginosum, are described. P. selloum is reduced to the synonymy of P. bipinnatifidum. Keys to the three subgenera of Philodendron and to the species of subgen. Meconostigma are presented. Brief reviews are given of vegetative and inflorescence morphology and anatomy, floral biology, geography, ecology and the fossil record.

1 aMayo, S.J. uhttps://cate-araceae.myspecies.info/node/25401575nas a2200277 4500008004100000245013200041210006900173260001800242300000900260490000700269520071400276653001900990653001601009653002101025653002701046653003101073653001601104653002301120100001701143700001801160700001901178700001401197700002101211700001501232856005001247 2019 eng d00aAnthurium harleyi (Araceae) - a new rupicolous species of section Urospadix from the northern Chapada Diamantina, Bahia, Brazil0 aAnthurium harleyi Araceae a new rupicolous species of section Ur c15 March 2019 a1-120 v743 a

Anthurium harleyi Pontes & Mayo, a new rupicolous species of Anthurium sect. Urospadix, is described from the rupestrian grassland (campo rupestre) vegetation of the northern region of the Chapada Diamantina, in central Bahia state, Brazil. The new species is endemic to this region, but closely related to A. erskinei Mayo from the central and southern regions of the same highland. A multivariate morphometric analysis of twelve quantitative morphological variables is presented which shows the two species to be distinct. A taxonomic description, line drawings, photographs, distribution map and conservation status based on a spatial analysis are provided.

10aCampo rupestre10alithophytes10aMorro do Chapéu10amountaintop grasslands10amultivariate morphometrics10anew species10athreatened species1 aPontes, T.A.1 aAndrade, I.M.1 aRichards, R.S.1 aHaigh, A.1 aVan den Berg, C.1 aMayo, S.J. uhttps://cate-araceae.myspecies.info/node/402800642nas a2200121 4500008004100000245006600041210006400107300001200171490000700183520025200190100002800442856005000470 2000 eng d00aTwo New Species of Philodendron (Araceae) from Central Brazil0 aTwo New Species of Philodendron Araceae from Central Brazil a175-1800 v553 a

Two new species of Philodendron (P. flumineum and P. mayoi) are described from Central Brazil. Both taxa are illustrated and compared to their nearest relatives. Philodendron flumineum seems to be the only rheophytic species in the genus.

1 aGonçalves, Eduardo, G. uhttps://cate-araceae.myspecies.info/node/250402599nas a2200241 4500008004100000245017000041210006900211300001200280490000700292520182800299653001202127653001102139653001702150653001102167653003002178653001302208653001802221100001902239700001502258700001502273700002102288856004802309 2008 eng d00aComparative morphology of populations of Monstera Adans. (Araceae) from natural forest fragments in Northeast Brazil using elliptic Fourier Analysis of leaf outlines0 aComparative morphology of populations of Monstera Adans Araceae  a193-2110 v633 a

Summary. A comparative study of the leaf outline morphometrics of Monstera adansonii var. klotzschiana, M. adansonii var. laniata and M. praetermissa was carried out. The study focused on populations in isolated montane humid (brejo) forests of Ceará state in Northeast Brazil and compared them with populations from Amazonia and the Brazilian Atlantic Forest. Digitised outlines were prepared from a total of 1,695 field-collected leaf images from 20 populations, and elliptic Fourier analysis was used to generate matrices of coefficients, from which six shape variables (principal components) were extracted using Principal Components Analysis. Intra-population variability and inter-population differences were analysed with multivariate distance methods. Separate analyses were carried out for each of three leaf size classes (juvenile, submature, mature) because of the strong heteroblasty typical of this genus. Juvenile leaves were the least variable size class within populations of M. adansonii var. klotzschiana. The shape variables expressed very similar types of variation in all three size classes. The Ceará brejo populations of M. adansonii var. klotzschiana showed significant differences between mature leaf outlines in all pairwise comparisons; the Pacatuba population was the most distinct. The Ceará populations did not cluster together exclusively. In all three size classes, populations clustered together into their taxonomic groups, most clearly so in mature leaves. No correlation between morphological and geographic distance matrices was found, nor between morphological and molecular distance. The study showed that leaf outline shape is a practicable and useful quantitative trait for studying morphological variability at species, varietal and population levels.

10aAraceae10aBrazil10abrejo forest10aCeará10aelliptic Fourier Analysis10aMonstera10amorphometrics1 aAndrade, I., M1 aMayo, S.J.1 aKirkup, D.1 aVan den Berg, C. uhttps://cate-araceae.myspecies.info/node/14