A5030410074- Plant Diversity and Evolution
- Plant and animal studies
- Plant Pathogens and Fungal Diseases
- Botany and Geology in Latin America and Caribbean
- Scarabaeidae Beetle Taxonomy and Biogeography
- Seedling growth and survival studies
- Plant Physiology and Cultivation Studies
- Botany, Ecology, and Taxonomy Studies
- Date Palm Research Studies
- Oil Palm Production and Sustainability
- Pacific and Southeast Asian Studies
- Plant Water Relations and Carbon Dynamics
- Fern and Epiphyte Biology
- Plant and Fungal Species Descriptions
- Tree Root and Stability Studies
- African Botany and Ecology Studies
- Plant Taxonomy and Phylogenetics
- Forest ecology and management
- Ethnobotanical and Medicinal Plants Studies
- Forest Insect Ecology and Management
- Banana Cultivation and Research
- Botanical Research and Applications
- Genetic diversity and population structure
- Plant Surface Properties and Treatments
- Insect-Plant Interactions and Control
Virginia Cooperative Extension
2014-2022
Napa Valley College
2021
Agroscope
2021
University of Wisconsin–Extension
2019
University of California, Berkeley
2013-2015
University of California, Los Angeles
1990-2011
University of Florida
2009
University of Fort Lauderdale
2009
University of California System
2008
University of California, Davis
2006
Chamaedorea tacanensis (Arecaceae), a new species from the Tacaná Volcano Biosphere Reserve, Chiapas, Mexico, is described based on morphological and phylogenetic data. It morphologically similar to C. elatior, only other climbing in genus. However, distinguished by having linear pinnae (lanceolate elatior), petioles emerging glaucous (glabrous longer rachises, blades peduncles than elatior. Also, has pinnate-leaved seedlings juveniles, whereas they are simple or bifid The two taxa form...
Dowe, J.L. & D.R. Hodel (2021). Taxonomy and nomenclature of four unresolved names published by Udo Dammer in the genus Chamaedorea (Arecaceae). Candollea 76: 93–98. In English, English abstract.In 1905, an account Willd. based on unpublished manuscripts his friend mentor Hermann Wendland who had died 1903. introduced numerous novel names, most which were nomenclaturally valid. However, a few have remained unresolved. We investigated nomenclatural status – exorrhiza H. Wendl. ex Dammer,...
As trees grow taller, the energetic cost of moving water to leaves becomes higher and could begin limit carbon gain subsequent growth. The hydraulic limitation hypothesis states that as path length therefore frictional resistance flow increases, leading stomatal closure, reduced photosynthesis decreased height growth in tall trees. Although this is supported by physical laws governing movement trees, its validation has been complicated complex structure most tree species. Therefore, study...
Pollination of Neotropical dioecious trees is commonly related to generalist insects. Similar data for non-tree species with separated genders are inconclusive. Recent studies on pollination Chamaedorea palms (Arecaceae) suggest that either insect- or wind-pollinated. However, the wide variety inflorescence and floral attributes within genus suggests mixed mode involving entomophily anemophily. To evaluate this hypothesis, we studied costaricana, C. macrospadix, pinnatifrons tepejilote in...
Abstract The bronze bug, Thaumastocoris peregrinus , an Australian native insect, has become a nearly worldwide invasive pest in the last 16 years and been causing significant damage to eucalypts (Myrtaceae), including Eucalyptus spp. Corymbia Its rapid expansion leads new questions about pathways routes that T. used invade other continents countries. We mtDNA characterize specimens of collected from 10 countries where this species established, six recently invaded countries: Chile, Israel,...
Abstract Four irrigation regimes based on percentages of real-time reference evapotranspiration (ET0) were applied to six widely used species landscape groundcovers (Baccharis pilularis ‘Twin Peaks’, Drosanthemum hispidum, Vinca major, Gazania rigens v. leucolaena ‘Yellow Cascade’, Potentilla tabernaemontanii, and Hedera helix ‘Needlepoint’) during a 17-month period in Irvine, CA. Irrigation treatments (50%, 40%, 30% 20% ET0) when accumulated ET0 × treatment percentage reached 4.0 cm (1.6...
Indian laurel-leaf fig (Ficus microcarpa L.) is a commonly used indoor and outdoor ornamental tree. F. most frequently encountered as lining city streets, especially in warmer southern California climates. A disease known 'Sooty Canker,' caused by the fungus Nattrassia mangiferae (Syd. & P. Syd) B. Sutton Dyko, particularly devastating on microcarpa. Disease symptoms are characterized branch dieback, crown thinning, if progresses to trunk, eventual tree death (2). Recent taxonomic revisions...
Slow rates of molecular evolution at low taxonomic levels hamper studies relationships among species and subsequent biogeographic evolutionary analyses. An example is the genus Brahea, which most poorly understood lineages American palms characterized by a wide variety growth forms intermediate morphological features. We generated c. 400 kb genome-scale data from all three genomes for 11 currently described Brahea spp. to infer phylogenetic relationships, reconstruct ancestral form, estimate...
Male and female floral structure has been studied in 28 species of Chamaedorea, the largest palm genus present Neotropics. The taxa investigated represent all subgenera according to most recent taxonomic revision group. Morphological, histological cytological features that are known be importance for interactions with visiting insects were their putative role protecting flowering parts assessed. distribution selected characters is some cases congruent relationships inferred by recently...
Palms (Arecaceae) are affected by a variety of pathogens, most which fungi. We detail host ranges, disease description, diagnosis and epidemiology as well management for the significant, usually fatal, diseases affecting palms grown in continental United States Hawaii. These include fusarium wilt ( Fusarium oxysporum f.sp. canariensis ) canary island date palm Phoenix ), diamond scale Phaeochoropsis neowashingtoniae ganoderma butt rot Ganoderma zonatum lethal yellowing Candidatus Phytoplasma...
Comprising a natural and distinctive group, palms (Arecaceae) differ from other woody plants in their structure growth features that require or offer unique sometimes advantageous landscape management opportunities. Although are mostly tropical group lacks dormancy cold tolerance, there numerous species possessing sufficient cool hardiness to be suitable for landscaping subtropical even some temperate areas. The habit of is largely dependent on the number stems length which they elongate....
Palms (Arecaceae) are affected by a variety of pathogens, most which fungi. We detail host ranges, disease description, diagnosis and epidemiology as well management for the significant, usually fatal, diseases affecting palms grown in continental United States Hawaii. These include fusarium wilt ( Fusarium oxysporum f.sp. canariensis ) canary island date palm Phoenix ), diamond scale Phaeochoropsis neowashingtoniae ganoderma butt rot Ganoderma zonatum lethal yellowing Candidatus Phytoplasma...
Palms need active root and shoot growth to establish quickly after transplanting. For many palm species, roots grow most abundantly during warmer months occur within 30 cm (12 in.) of the trunk. Thus, palms can be transplanted year-round in warm regions where air soil temperatures are nearly always sufficient ensure adequate growth. However, with cool seasons, best at beginning season. balls a radius from trunk deep because they capture over half roots. The few species that must all their...
The responses of five landscape palm species [king ( Archontophoenix cunninghamiana ), mediterranean fan (Chamaerops humilis queen Syagrus romanzoffiana chinese windmill Trachycarpus fortunei and california Washingtonia filifera )] to three levels irrigation [50%, 25%, 0% (no irrigation) reference evapotranspiration] were evaluated in a coastal climate Irvine, CA. Cumulative leaf production varied greatly among the species, but only king palms produced more leaves with additional irrigation....