dispersal unit

Listing 1 - 10 from 27 for dispersal unit

Angiosperm Families - Acanthaceae Juss.
... in ‘inflorescences’; in cymes, in racemes, and in verticils. The terminal inflorescence unit cymose (in about 75%), or racemose. Inflorescences commonly dichasial cymes, becoming monochasial ... , or solanad. Fruit non-fleshy; dehiscent; a capsule. Capsules loculicidal. Fruit elastically dehiscent. Dispersal unit the seed. Seeds non-endospermic; borne on minute, hook-like outgrowths (‘retinacula ...
delta-intkey.com

Angiosperm Families - Aceraceae Juss.
... in ‘inflorescences’; in fascicles, in racemes, and in corymbs. The terminal inflorescence unit racemose. Inflorescences terminal, or axillary; racemose, corymbose or fasciculate. Flowers regular; 4 merous, ... one-winged, from one side only in Acer, all round in Dipteronia). Dispersal unit the mericarp. Dispersal by wind. Seeds non-endospermic. Embryo well differentiated. Cotyledons 2 (flat or ...
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Glossary of Pollen and Spore Terminology - Part 2 (D-H)
... of the elements on the tectum. Example: Geranium (Geraniaceae). Antonym: concordant pattern. Dispersal unit The morphological unit in which mature pollen grains or spores are shed, which may range ... or spores) united as a dispersal unit. Comment: A developmental dyad stage occurs prior to tetrad formation in plants with successive meiosis. See also: dispersal unit. Echinate (adj.) (sing. echina, ...
www.biol.ruu.nl

Glossary of Pollen and Spore Terminology - Part 5 (S-Z)
... general term for a group of four united pollen grains or spores, either as a dispersal unit or as a developmental stage. Comment: Tetrads may be uniplanar, with all members lying in ... , with members in more than one plane (for example, decussate or tetrahedral tetrads). See also: dispersal unit, monad, dyad. Tetrad mark (Couper and Grebe, 1961) The monolete or trilete mark on the ...
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Choosing an Alternate Septic System for a Homesite with Thin...
... new septic tank, sand bed, drip tubing, and control unit. Installation time- two days. Unit size- 500 linear feet of drip tubing. Capacity- ... tank), the pump and filter in the lift tank, and the dispersal unit, which consists of a supply and return line (seefigure 2). ... should follow standard design practices. For example, typical pressures in dispersal lines range up to 60 pounds per square inch and ...
www.extension.umn.edu

Glossary: The University of Arizona Press/Arizona Weeds
... Glumes - A pair of bracts at the base of the grass spikelet Grain - The seedlike dispersal unit of the grass family Inferior ovary - Where the sepals, petals, and stamens appear to rise ... the stem Spike - An unbranched inflorescence in which the flowers are not stalked Spikelet - The unit of the inflorescence in grasses Stamen - The male portion of the flower Stipule - One of ...
www.uapress.arizona.edu

FLORA OF NORTH AMERICA - Volume 1, Chapter 1
... represented (see A.Graham, chap. 3, fig. 3.1), although they represented significant barriers to dispersal at various times. The paleogeography and paleoclimates of the late Cretaceous and early Tertiary ... this phenomenon; M.E. Collinson 1990). Although Europe and North America formed a single geological unit, sea level was high during the Cretaceous, and shallow continental seas between Europe and ...
hua.huh.harvard.edu

Graduate Student Listing-Cornell Plant Pathology
... advisor was Gary C. Bergstrom. David’s research interests include aerobiology, the movement and dispersal of fungal plant pathogens, mycotoxicology, plant disease epidemiology, and population genetics of plant pathogenic ... in September as plant pathologist with the USDA-ARS Western Integrated Cropping Systems Research Unit in Shafter, CA where she conducts research on the biology and management of ...
ppathw3.cals.cornell.edu

Treehouses on the Tree of Life
... in Tucson, and features pictures of a bobcat in the author's backyard. Burrowing Owl Dispersal Movements in Tucson, Arizona Widely distributed throughout most of the western United States, Western ... to move around indoors or outdoors to learn about lizards and their behavior. The unit contains step by step lessons with National Science Education Standards, glossary words, background information, ...
tolweb.org

Fruit Terminology (Part 2)
... enclosed seed-bearing achene is the unit of dispersal. In some members of the Nyctaginaceae, the persistent calyx base bears sticky glandular projections that aid in dispersal by adhering to the bodies of ... the United States. Photos Of Cereal Grasses Job's Tears & Corn (Maize) Wind Dispersal Of Grasses (1) Wind Dispersal Of Grasses (2) Bamboo: Remarkable Giant Grass 4. Samara: One-seeded, winged ...
waynesword.palomar.edu

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