Journal ArticleDOI
Anatomy of the Dicotyledons.
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This article is published in American Midland Naturalist.The article was published on 1950-11-01. It has received 2511 citations till now.read more
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Hirmeriella muensteri (Schenk) Jung from Odrowąż (Poland), with female and male cones, and in situ Classopollis pollen grains
TL;DR: The present paper gives detailed description of this species from Poland, with some information on its palaeoecology.
Journal ArticleDOI
Annotated key to the New Zealand shrubby senecioneae-compositae and their wild and garden hybrids
TL;DR: A synoptical key based on vegetative characters and a general key incorporating both the floral and vegetative diversity are given for the identification of the New Zealand shrubby Senecioneae and their wild and garden hybrids, finding four hybrids appear to involve Senecio shrubs and scapigerous rosette herbs as parents.
Journal ArticleDOI
Living cells in wood. 2. Raylessness: histology and evolutionary significance
TL;DR: In this paper, the authors describe the evolution from rayless to ray presence within the stem of a given species and describe the morphological changes from raylessness to presence of a ray within a given stem.
Journal ArticleDOI
Stem anatomy of Cipocereus (Cactaceae)
TL;DR: Five species of Cipocereus are endemic of the Serra do Espinhaço of Minas Gerais, Brazil and are considered to be one of the most primitive of the tribe, due to a vascular cylinder composed of secondary xylem with heavy lignification, among other morphological characters.
Journal ArticleDOI
Gerrardinaceae: a new family of African flowering plants unresolved among Brassicales, Huerteales, Malvales, and Sapindales
Mac H. Alford,Mac H. Alford +1 more
TL;DR: A new family of flowering plants, Gerrardinaceae M. H. Alford, is created for Gerrardina Oliver, an African genus of two species formerly allied to tribe Homalieae of Flacourtiaceae, which is unresolved among the "eurosids II" ("malvids"), a clade that includes Brassicales, Huerteales, Malvales, and Sapindales.