|
tuft |
> coma |
STRUCTURE |
|
A distinct, compact, relatively dense, homogeneous aggregation of plants or constituent structures such as stems, branches, leaves, bracts or trichomes. |
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whorled |
= cyclic, seriate, verticillate |
arrangement |
|
Disposed along the axis in groups of three or more, the members of each group (cycle, series, verticil, whorl) inserted around the axis at the same level. |
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basal |
< proximal |
insertion |
|
At or very near the developmental origin (base) of a structure. |
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capillate |
= capillary, hair-like |
solid shape |
|
Finely filiform; like a hair. |
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ontogeny |
= development |
CHARACTER |
|
Mode or pattern of growth and differentiation. |
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colpus pl. colpi |
= fossula, furrow, groove, sulcus, vallecula |
FEATURE |
|
An elongate depression that is relatively shallow and narrow. |
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petiolule |
< stalk |
STRUCTURE |
|
The stalk, when present, of a leaflet, analogous to the petiole of a leaf. |
|
cupulate |
= calyciform, cup-shaped |
solid shape |
|
Truncate-globose with the distal margin more or less entire; like the bowl of a cup. |
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…pterous |
= …winged |
architecture |
|
Having the number of alae (wings) indicated by the prefix; as in dipterous, polypterous, tetrapterous. |
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fasciculate 2 |
= bundled (not recommended), fascicled |
arrangement |
|
Disposed in one or more fascicles, the members of each inserted close together and only slightly if at all divergent from one another. |
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squamose |
= lepidote, squamate; < scaly |
pubescence |
|
Bearing squamae (lepides). See also squamellose. |
|
superficial |
= surficial |
position |
|
Directly upon the surface of the structure in point. |
|
keel 1 |
= carina |
STRUCTURE |
|
An elongate, median longitudinal ridge that is basically triangular in transverse section and resembles the keel of a boat; esp. in leaf blades and sheaths, glumes, lemmata, paleae, sepals, petals. |
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trichome |
> bristle, capillus, glochid, glochidium, hair, lepis, scale, seta, squama, squamella, squamule; >< cilium |
STRUCTURE |
|
Any superficial, unicellular or multicellular structure arising entirely from an epidermis. Unlike other epidermal enations or coverings, trichomes are cellular structures. |
|
vesture var. vestiture |
= indumentum |
STRUCTURE / SUBSTANCE |
|
The trichomes and/or exuded substance that overlie a surface proper, regarded collectively. See also coating, pubescence. |
|
megasporangium pl. megasporangia |
= macrosporangium (not recommended) |
STRUCTURE |
|
A sporangium that produces megaspores. |
|
obterete |
|
solid shape |
|
Inversely terete. |
|
…cleft |
? …fid, …lobate, …lobed, …parted, …partite, …segmented |
plane shape |
|
Having the number of lobes, divisions or segments indicated by the prefix; as in three-cleft. |
|
crest |
= crista |
STRUCTURE |
|
A laterally elongate, relatively thin, irregular or notched, apical protrusion. |
|
dissepiment |
< septum; > replum |
STRUCTURE |
|
A wall or partition between adjacent locules of an ovary or fruit. |
|
retuse |
|
apex |
|
Round overall with an obtuse terminal sinus. |
|
segment |
? division, lobe |
STRUCTURE |
|
Any generally convex, major peripheral protrusion or component sector that is delimited by concavities in the surface or margin and that is not proximally distinct from the remainder of the whole. |
|
segmented |
? cleft, dissected, divided, lobed, lobate, parted, partite |
plane shape |
|
Having two or more major component sectors or peripheral protrusions that are delimited by concavities in the surface or margin and that are not proximally distinct from the remainder of the whole. The meanings of this term and its approximate synonyms sometimes have been supposed to differ according to the depth of the delimiting concavities relative to the midline or midpoint of the overall structure, and/or to the shape or proportions of the protusions or sectors; however, there has been little consistency in the applications of the various terms according to such distinctions, which are ones only of degree and are necessarily arbitrary in any case. In general usage, these terms differ only indistinctly and connotatively: cleft, lobed (or lobate), parted (or partite) and segmented tend to connote fewer protrusions or sectors; lobate usually connotes as well a generally rounded shape; dissected tends to connote more numerous sectors that are elongate and angular. See also cut (incised, lacerate, torn), laciniate (slashed). |
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fringe |
= fimbria |
STRUCTURE |
|
A marginal series or cycle of regular, slender, closely adjacent, more or less flexible segments or protrusions, when treated as an aggregate structure. |
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spiny 1 |
= echinate, spinose |
architecture |
|
Bearing spines. |
