spike |
|
nominative |
inflorescence |
An elongate, determinate or usually indeterminate axis bearing sessile flowers inserted singly along it, unbranched or sometimes bearing lateral branches of the same nature. |
excurrent |
|
architecture |
axis, laminar vein |
Branching laterally such that the initial axis retains its prominence over the length of the structure, the succesive orders of branches relatively smaller. See also deliquescent. |
thallus 1 pl. thalli |
|
STRUCTURE |
|
The vegetative portion of a shoot when not differentiated into stem and leaves; esp. in Lemnaceae. |
coetaneous |
|
maturation |
dissimilar structures |
Maturing concurrently. This adjective is frequently used to mean contemporary maturation of leaves and flowers, but without actually stipulating that those are the structures involved. Such usage is erroneous according to the construction and literal meaning of the term, which properly applies to structures, not to the taxon or plant. See also synanthous. |
irregular 2 |
|
course |
|
Deviating asymmetrically from a straight line. |
oblong 2 |
|
solid shape |
|
Compressed-ellipsoid, the sides approximately parallel from near one end to near the other. See also ellipsoid(al). |
obcordiform |
|
solid shape |
|
Inversely cordiform (heart-shaped). |
woody-clumping |
|
habit |
plant |
Having or developing the character of a woody clump. See also arboreous, arborescent, bushy, frutescent, fruticose, shrubby, subshrubby, suffrutescent, suffruticose, tree-like. |
limp |
|
texture |
|
Lacking stiffness in in one or more dimensions, thus drooping or sagging where unsupported. |
linear 1 |
|
arrangement |
bundle scars |
Disposed in a more or less straight line. |
germination 1 |
|
CHARACTER |
|
The process wherein a dormant embryo resumes active metabolism and growth, the primary root and shoot emerging from the seed coat, the young sporophyte thereupon entering the seedling stage. |
microsporangium pl. microsporangia |
|
STRUCTURE |
|
A sporangium that produces microspores. |
stilt-rooted |
|
architecture |
plant |
Bearing and partly supported by stilt roots. |
resin |
|
SUBSTANCE |
|
A substance of high molecular weight consisting of organic acids, esters, and/or terpenes, produced within plant tissue and exuded from wounds as a liquid that hardens to an amorphous glassy state upon exposure. |
ovule |
|
STRUCTURE |
|
A complex reproductive structure borne by a seed-plant sporophyte, consisting of outer, sporophytic tissues that enclose a haploid, gametogenic tissue usually regarded as a highly reduced megagametophyte. Following fertilization, the entire structure matures to become a seed that contains an embryo, the first stage of the next sporophytic generation. Ovules (and seeds) are borne naked on megasporophylls (in Pinophyta) or within an ovary (in Magnoliophyta). |
hysterophyllous |
|
maturation |
non-foliar structure, esp. flower |
Maturing later than the leaves. |
…angular 1 |
|
arrangement |
bundle scars |
Forming a figure with the number of sides indicated by the prefix. |
staminal |
|
insertion |
|
Upon or otherwise directly associated with the stamens. |
raphe |
|
STRUCTURE |
|
That portion of the funicle adnate to the integument of an anatropous ovule; represented by a longitudinal ridge or other discontinuity in the surface and/or color of the testa on one side of the mature seed. |
perforate |
|
architecture |
foliaceous structure |
Having portions of the laminar (blade) area naturally devoid of any tissue. |
capsule |
|
nominative |
fruit |
Dry, longitudinally or poricidally dehiscent, and derived from a compound ovary with one or more locules; containing one or more seeds. See also pyxis. |
cuspidate |
|
apex |
|
Tapering gradually to a rigid tip composed of both vascular and laminar tissues. |
cell 1 |
|
STRUCTURE |
|
Any of the basic structural/functional units that collectively or individually make up the various tissues of a plant; comprising, at least while physiologically active, a nucleus with included genetic material (chromosomes), a surrounding cytoplasm with included organelles (e.g., ribosomes, mitochondria, plastids), an enclosing membrane, and an exterior cellulosic wall. |
strobiloid |
|
architecture |
flower |
Characterized by a general lack of adnation among the different sets of basic floral structures, any significant degree of fusion limited to connation within sets, thus with ovary(ies) superior and lacking a floral tube. |
infrabracteal |
|
position |
|
Upon the axis directly below a bract insertion. |