A Phylogenetic Classification of the Annoniflorae

Evolution and classification of flowering plants

1979 • 1,692 citations

Butterflies and Plants: A Study in Coevolution

1964 • 1,671 citations

Flowering Plants--Origin and Dispersal.

1970 • 1,185 citations

Systematic embryology of the angiosperms

1967 • 935 citations

A Dictionary of the Flowering Plants and Ferns

1968 • 910 citations

INTERNATIONAL CODE OF BOTANICAL NOMENCLATURE

1953 • 767 citations

The Comparative Internal Morphology of Seeds

1946 • 679 citations

Anatomy of the dicotyledons : leaves, stem, and wood in relation to taxonomy with notes on economic uses

1950 • 598 citations

Morphology of the angiosperms

1961 • 474 citations

Tropical Forest Ecosystems in Africa and South America: a Comparative Review.

1974 • 468 citations

Chemical Plant Taxonomy

1963 • 459 citations

Pollen Morphology and Plant Taxonomy

1953 • 407 citations

A. Engler's Syllabus der Pflanzenfamilien

1985 • 384 citations

The Genera of Flowering Plants

1966 • 337 citations

Genera plantarum secundum ordines naturales disposita

1836 • 335 citations

Die Evolution der Angiospermen

1959 • 313 citations

Handbuch Der Systematischen Botanik.

1933 • 295 citations

Major Disjunctions in the Geographic Ranges of Seed Plants

1972 • 294 citations

Synopsis of a Putatively Phylogenetic Classification of the Flowering Plants

1968 • 269 citations

CHROMOSOME NUMBERS AND EVOLUTION IN PRIMITIVE ANGIOSPERMS

1968 • 157 citations

The waterlilies: a monograph of the genus Nymphaea,

1905 • 148 citations

A Revision of the Malayan Annonaceae

1955 • 137 citations

The morphology and relationships of the Monimiaceae

1950 • 136 citations

SYSTEMATIC ANATOMY OF THE LEAF EPIDERMIS IN THE MAGNOLIACEAE AND SOME RELATED FAMILIES

1972 • 135 citations

Nodal Anatomy in Retrospect

1956 • 118 citations

THE CONDUPLICATE CARPEL OF DICOTYLEDONS AND ITS INITIAL TRENDS OF SPECIALIZATION

1951 • 117 citations

Biochemical Systematics

1963 • 112 citations

The Families Illiciaceae and Schisandraceae

1947 • 105 citations

Further Contributions to the Morphology of the Degeneriaceae

1949 • 101 citations

The Morphology and Relationships of Austrobaileya

1949 • 93 citations

Pollen morphology, phytogeography, and phylogeny of the Annonaceae

1971 • 91 citations

The Winteraceae of the Old World. I. Pseudowintera and Drimys — Morphology and taxonomy

1970 • 87 citations

The Morphology and Relationships of the Chloranthaceae

1953 • 83 citations

THE COMPARATIVE MORPHOLOGY AND RELATIONSHIPS OF THE MAGNOLIACEAE. III. CARPELS

1960 • 75 citations

The Comparative Morphology of the Winteraceae II. Carpels

1943 • 74 citations

The divisions and classes of plants

1960 • 71 citations

Alkaloid-Bearing Plants and Their Contained Alkaloids

1961 • 71 citations

Degeneriaceae, a New Family of Flowering Plants from Fiji

1942 • 67 citations

Some Problems and Guiding Principles of Angiosperm Phylogeny

1963 • 67 citations

The "Amentiferae" or Hamamelidae as an Artificial Group: A Summary Statement

1973 • 66 citations

The Piperaceae of Northern South America.

1951 • 65 citations

A Treatise on the North American Ranunculi

1948 • 65 citations

The Comparative Morphology and Relationships of the Magnoliaceae -- IV. Wood and Nodal Anatomy

1955 • 60 citations

Zur Frage der Phylogenie der Endospermtypen bei den Angiospermen

1959 • 58 citations

Zur vergleichenden Entwicklungsmorphologie: Embryologie und Systematik bei Laurales.

1972 • 56 citations

The Family Himantandraceae

1943 • 56 citations

Morphology and Relationships of Lactoridaceae

1964 • 54 citations

The Piperaceae-A Family Profile

1958 • 50 citations

Sarcandra, a vesselless genus of the Chloranthaceae

1950 • 50 citations

Taxonomic notes on the Old World species of Winteraceae

1943 • 50 citations

The American species of Drimys

1943 • 49 citations

The Comparative Morphology of the Winteraceae: I. Pollen and Stamens

1943 • 49 citations

Classification and Phylogeny of Nymphaeaceae and Allied Families

1955 • 48 citations

The Taxonomic Significance of Alkaloids

1963 • 47 citations

Studies on the Monimiaceae. I. Floral morphology and gametophyte development of Hedycarya arborea J.R. et.G. Forst. (subfamily Monimioideae)

1969 • 44 citations

TWO NEW SUPRAGENERIC TAXA IN THE MONIMIACEAE ALLIANCE (LAURALES)

1970 • 44 citations

Monographie der Hernandiaceen.

1969 • 40 citations

ARILS AND ARIL‐LIKE STRUCTURES IN WOODY RANALES

1973 • 40 citations

CHROMOSOME NUMBERS, PHYLOGENY, PHYTOGEOGRAPHY OF THE ANNONACEAE AND THEIR BEARING ON THE (ORIGINAL) BASIC CHROMOSOME NUMBER OF ANGIOSPERMS

1972 • 40 citations

Morphology and Anatomy of the Saururaceae. I. Floral Anatomy and Embryology

1961 • 39 citations

Evolutionary Trends in the Central American Species of Piper (Piperaceae)

1972 • 38 citations

Pflanzenstoffe und Pflanzensystematik

1971 • 38 citations

Revision of Dicentra (Fumariaceae)

1961 • 38 citations

Pollen of Degeneria vitiensis

1965 • 35 citations

The Morphology and Relationships of Circaeaster

1963 • 35 citations

The Comparative Morphology of the Winteraceae VI. Vascular Anatomy of the Flowering Shoot

1944 • 35 citations

The Pollination of Calycanthus occidentalis

1950 • 35 citations

The Morphology and Systematics of the West Indian Magnoliaceae

1948 • 34 citations

The Comparative Anatomy of The Xylem and Phylogeny of The Lauraceae

1954 • 32 citations

Pollen walls and angiosperm phylo-geny.

1960 • 31 citations

Idiospermum (Idiospermaceae), a new genus and family for Calycanthus australiensis

1972 • 31 citations

An Account of the Genus Meconopsis

1934 • 30 citations

The Comparative Morphology and Relationships of the Magnoliaceae. I. Trends of Specialization in the Stamens

1952 • 30 citations

Morphology of Seed Germination and Seedling in Annona squamosa

1963 • 29 citations

Pollen Grains in the Identification and Classification of Plants. VII. The Ranunculaceae

1936 • 28 citations

The Distribution of Sulphur Compounds

1963 • 28 citations

Monographie der Myristicaceen

1899 • 28 citations

Chromosome number and relationship in the Magnoliales

1933 • 28 citations

Studies on the Monimiaceae. III. Gametophyte development of Laurelia novae-zelandiae A. Cunn. (subfamily Atherospermoideae)

1969 • 28 citations

The genera of the woody Ranales in the southeastern United States

1958 • 28 citations

The Genera of the Nymphaeaceae and Ceratophyllaceae in the Southeastern United States

1959 • 28 citations

Ondinea, a new genus of Nymphaeaceae

1970 • 27 citations

Some Guiding Principles of Angiosperm Phylogeny

1958 • 26 citations

MORPHOLOGICAL STUDIES OF THE NYMPHAEACEAE. V. DOES NELUMBO HAVE VESSELS?

1970 • 26 citations

The vegetable kingdom; or, The structure, classification, and uses of plants, illustrated upon the natural system

1853 • 25 citations

The Genera of Fumariaceae and Their Distribution

1921 • 25 citations

Studies in Floral Anatomy.-II. The floral anatomy of Glaucium flavum with reference to other members of the Papaveraceae.

1935 • 25 citations

THE COMPARATIVE MORPHOLOGY OF THE CANELLACEAE. II. ANATOMY OF THE YOUNG STEM AND NODE

1965 • 25 citations

The Comparative Morphology of the Winteraceae: III. Wood

1944 • 24 citations

The Nodal Anatomy and the Primary Vascular Cylinder of the Calycanthaceae

1957 • 24 citations

Contributions of Pollen Morphology to the Phylogeny of Some Ranalean Families

1963 • 24 citations

On the microsporogenesis and pollen morphology in the family Magnoliaceae.

1960 • 24 citations

Floral morphology, embryology, and relationships of the Berberidaceae.

1969 • 24 citations

The Conduplicate Carpel of Cananga odorata

1956 • 24 citations

CHROMOSOME NUMBERS AND RELATIONSHIPS IN ANNONIFLORAE

1971 • 23 citations

American Thalictra and their Old World allies

1944 • 23 citations

Monograph of the North American Species of Corydalis

1947 • 22 citations

Wood anatomy of Hernandiaceae and Gyrocarpaceae.

1960 • 22 citations

The Floral Morphology and Relationships of Kingdonia Uniflora

1961 • 21 citations

Floral Anatomy and Morphology of Anemopsis californica

1941 • 21 citations

Embryology of Drimys winteri

1968 • 21 citations

The comparative morphology of the Canellaceae. I. Synopsis of genera and wood anatomy.

1960 • 21 citations

The Genera of Papaveraceae and Fumariaceae in the Southeastern United States

1962 • 21 citations

Developmental Patterns in Stem Primary Xylem of Woody Ranales. II. Species with Trilacunar and Multilacunar Nodes

1967 • 20 citations

Comparative plant anatomy : a guide to taxonomic and evolutionary application of anatomical data in angiosperms

1961 • 20 citations

Morphology and Dichotomous Vasculature of the Leaf of Kingdonia Uniflora

1960 • 20 citations

A morphological study of the Fumariaceae and the taxonomic significance of the characters examined

1960 • 20 citations

Systematic and Phylogenetic Consideration of the Ranunculaceae and Berberidaceae

1938 • 18 citations

Studies in the Lauraceae, VI. Preliminary survey of the Mexican and Central American species

1945 • 18 citations

Some Morphological Peculiarities of the Nymphaeaceae and Helobiae

1904 • 18 citations

Carpel Anatomy of the Berberidaceae

1936 • 17 citations

Notes on the Embryology of the Nymphaeaceae

1909 • 17 citations

A Phyletic Rearrangement in the Aristolochiaceae

1956 • 17 citations

XYLEM ANATOMY AND RELATIONSHIPS OF GOMORTEGACEAE

1955 • 17 citations

Comparative Serology of the Order Nymphaeales. II. Relationships of Nymphaeaceae and Nelumbonaceae

1971 • 16 citations

Geographical Distribution of Winteraceae

1945 • 16 citations

Developmental Patterns in Stem Primary Xylem of Woody Ranales. I. Species with Unilacunar Nodes

1967 • 15 citations

Floral morphology and embryology in some taxa of the Canellaceae

1962 • 15 citations

The Morphology of the Myristicaceae. I. Flowers of Myristica fragrans and M. malabarica

1967 • 15 citations

The Morphology and Anatomy of the Achene

1930 • 14 citations

A revision of the genus Trimenia (Trimeniaceae)

1971 • 13 citations

Fruits and Seedlings of Ceratophyllum

1940 • 12 citations

Cytotaxonomy of Illicium floridanum and I. parviflorum (Illiciaceae)

1968 • 12 citations

Remarks on the Structure and Affinities of the Order Ceratophyllaceæ

1848 • 12 citations

The Saururaceae in the southeastern United States

1971 • 12 citations

The Chromosomes of Austrobaileya

1967 • 12 citations

Torus Anatomy and Nectary Characteristics as Phylogenetic Criteria in the Rhoeadales

1941 • 11 citations

Vascular anatomy of the flower of certain species of the calycanthaceae

1963 • 10 citations

Chromosome numbers and pollen tetrad size in the Winteraceae

1955 • 10 citations

Foliar vascularization and histology in the canellaceæ

1961 • 9 citations

A Synopsis of the Asian Species of Delphinium, Sensu stricto

1967 • 9 citations

The Open Conduplicate Carpel of Akebia quinata (Berberidales: Lardizabalaceae)

1968 • 9 citations

Morphology of Tinospora cordifolia, with Some Observations on the Origin of the Single Integument, Nature of Synergidae, and Affinities of the Menispermaceae

1939 • 9 citations

Geographical distribution of the Eupomatiaceae

1955 • 8 citations

Les Monimiacées, famille hétérogène

1948 • 8 citations

Zur Kenntnis desSaruma Henryi Oliv

1907 • 7 citations

The development of Magnolia and Liriodendron, including a discussion of the primitiveness of the Magnoliaceae /

1914 • 6 citations

Relationship in the Magnoliaceae as Determined by the Precipitin Reaction

1953 • 4 citations

Contribution à l'étude cytologique, cytochimique et médicale des pollens et des spores

1964 • 1 citations