Results

[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Background and Aims The mature morphology of most plants can usually be said to consist of three mutually exclusive organs: leaves, stems, and roots. The vast majority of mature morphologies may be easily grouped into one of these mutually exclusive categories. However, during very early stages of ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
This quantitative developmental study examines various parameters associated with the growth of leaves of Myriophyllum aquaticum (Vell.) Verdc. on different shoot systems from a single clonal plant to determine the dynamics of growth processes during the development of a normal, typical leaf. Early ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The inflorescence of Anaphyllopsis americana (Engler) A. Hay consists of more than 100 flowers arranged in recognizable spirals. Each flower has four broad tepals enclosing four stamens that are not visible prior to anthesis. The unilocular ovary contains one ovule and bears a discoid stigma. The fl...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The main goal of this study was to examine different phyllotactic patterns and pattern transitions in seedlings of eastern white cedar (Thuja occidentalis L.). Four phyllotactic patterns were observed on the main stem of T. occidentalis: tetracussate, tricussate, (3, 5) spiral, and decussate. Only o...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
This study deals specifically with floral organogenesis and the development of the inflorescence of Philodendron ornatum. The development of the inflorescence of P. ornatum can be divided into two morphogenetic phases: (i) before and (ii) after the initiation of the floral organs. Before the initiat...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
A comparative developmental study of the inflorescence of Philodendron solimoesense was conducted using scanning electron microscopy. The spadix of P. solimoesense is characterized by unisexual flowers. Staminate flowers are initiated on the upper portion of the spadix while pistillate flowers devel...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The early stages of inflorescence development in Philodendron fragrantissimum (Hook.) G. Don are examined using scanning electron microscopy. Pistillate flowers are initiated on the lower portion of the inflorescence and staminate flowers are initiated on the distal portion. Male flowers have 6-8 st...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The early stages of development of the inflorescence of Philodendron insigne were examined using scanning electron microscopy. Pistillate flowers are initiated on the lower portion of the inflorescence and staminate flowers are initiated on the distal portion. The male flowers have three to five sta...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The upland hardwood component of Prince Edward Island's Acadian forest is among the best remaining examples of the precolonial landscape, but it has been severely fragmented during the past 300 years of human use and settlement. Despite the ecological importance of this remnant habitat and its level...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The spadix of Arum italicum Miller consists of two main parts: a clavate sterile portion (appendix) and a cylindroid fertile portion. In the fertile portion with both male and female zones, there are two zones of sterile flowers (bristles). The basal portion of bristles is surrounded by a verrucose ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The floral morphology of Ambrosina and Arisarum is analysed from a developmental and phylogenetic point of view. In Arisarum, there are atypical organs displaying male and female characteristics. This developmental study shows that the male flowers of Ambrosina are di- or tri-androus. A close phylog...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
In the inflorescence of Schismatoglottis, atypical sterile flowers are present between the male and female zones. Contrary to what occurs in Cercestis and Philodendron, where the atypical flowers are bisexual, in Schismatoglottis the atypical flowers consist of aberrant male or female flowers. These...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The developmental morphology of shoots of Thuja occidentalis L. (eastern white cedar) was investigated using scanning electron microscopy to determine the pattern of initiation of two types of leaves characteristic of higher (third and above) order branches. The shoots of eastern white cedar are bil...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
In Philodendron, pistillate flowers are initiated on the proximal portion of the inflorescence and staminate flowers are initiated on the distal portion. Between the staminate and pistillate flowers, there is a transition zone consisting of sterile male flowers adjacent to the male zone and a row of...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The Gulf of St. Lawrence Aster, Symphyotrichum laurentianum, is a member of the family Asteraceae and is listed as "threatened" by COSEWIC (Committee on the Status of Endangered Wildlife in Canada). This rare and vulnerable halophyte grows in only a few locations in New Brunswick, Prince Edward Isla...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Recent advances in molecular genetics are prompting developmental plant morphologists to refine the theoretical context of their field. For example, at the level of the action of certain developmental genes, the distinction between recognized structural categories (i.e., stem and leaf) are not obvio...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The Gulf of St. Lawrence aster, Symphyotrichum laurentianum (Fernald) Nesom is listed as “threatened” according to the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). This rare halophyte is found in only a few locations in New Brunswick, Prince Edward Island, and the Magdalen...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Early blight, caused by Alternaria solani, is a ubiquitous disease that can reduce potato yield. Adequate crop fertility and appropriate fungicide applications usually suppress the development of this disease. Field trials were established in Prince Edward Island to determine whether strobilurin ana...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Background and Aims The inflorescence of Philodendron constitutes an interesting morphological model to analyse the phenomenon of homeosis quantitatively at the floral level. The specific goals of this study were (1) to characterize and quantify the range of homeotic transformation in Philodendron ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The Gulf of St. Lawrence aster, Symphyotrichum laurentianum (Fernald) G.L. Nesom (Asteraceae), a small annual halophyte endemic to disturbed and highly transient habitats in the Gulf of St. Lawrence, is classified as “threatened” by the Committee on the Status of Endangered Wildlife in Canada. L...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The early stages of development of the inflorescence of Philodendron melinonii were examined using scanning electron microscopy. Pistillate flowers are initiated on the lower portion of the inflorescence and staminate flowers are initiated on the distal portion. The male flowers have four to five st...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The larval stages of the cynipid wasp Diplolepis rosaefolii induce the formation of single-chambered, lenticular galls on the leaves of the wild shrub rose, Rosa virginiana. The development of galls induced by D. rosaefolii was studied using light and scanning electron microscopy. The gall consists ...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
Explores aspects of floral development in Philodendron grandifolium and Philodendron megalophyllum. Initiation of pistillate and staminate flowers; Morphology of the mature flowers; Function of the presence of calcium oxalate crystals; Observations of the homeotic shift between carpels and staminode...
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.]
The spadix of M. arborescens has a cylindrical or ellipsoid form at maturity and contains unisexual flowers without a perianth. The pistillate and staminate flowers are located in the basal and apical portions, respectively, of the inflorescence. In the upper portion of the female zone, there is a r...