surficial |
= superficial |
position |
|
Directly upon the surface of the structure in point. |
rhombic |
= rhombate |
plane shape |
|
Broadest at the middle and more or less regularly attenuate to either end, the sides angled at the middle and more or less straight from there to either end. |
corniculate |
= horned |
apex |
|
Bearing one or more cornicula (horns). |
bicolor(ous) |
< discolor(ous) |
coloration |
|
Having two surfaces of different colors; esp. leaves with differently colored adaxial and abaxial surfaces. |
star-shaped 1 |
= stellate |
plane shape |
|
Having four or more intersecting radiate lobes or portions, each distally slender; like the stylized outline of a star. |
callous |
= callose |
texture |
|
Hard-leathery; callous tissue usually is also thicker than comparable adjacent tissue. |
tortuous |
|
course |
|
Strongly irregular with sharp bends and/or curves. |
fimbrillate |
= fine-fringed |
margin |
|
Finely fimbriate (fringed). |
channel |
|
FEATURE |
|
A longitudinal, transversely rounded depression; esp. along the adaxial surface of a petiole or petiolule. |
palet 1 |
= pale, palea, receptacular bract |
STRUCTURE |
|
A small papery (chartaceous) to membranous bract borne on the compound receptacle (torus) of a capitulum (head) in Asteraceae (Compositae). |
abaxial |
= dorsal (not recommended) |
insertion |
|
On or pertaining to the side or portion of a lateral structure that faces (or would face) away from the bearing axis when (or if) the axis of the lateral structure is (or were) oriented in the same general direction as the bearing axis. |
indusium pl. indusia |
|
STRUCTURE |
|
A protective membrane that is an outgrowth from the epidermis and covers a sorus during its maturation; in Polypodiophyta. |
sucker |
> turion |
STRUCTURE |
|
A shoot arising adventitiously from a root or stem below or at ground level. |
reflexed |
= deflexed |
orientation |
|
Abruptly bent outward (abaxially), downward, or backward at some point along its length. |
margin |
|
CHARACTER |
|
Configuration of all or part of the periphery of a planate structure, sometimes referred to as though it were discrete and an entity in its own right for descriptive purposes. The extent of the area considered to pertain to the margin in a given case is, of necessity, subjectively determined. As a general rule, peripheral concavities that do not exceed 1/5 the distance from the generalized edge to the center or main axis of the structure are considered components of marginal configuration, deeper concavities being considered components of overall shape. The margin is sometimes considered to be only the infinitely thin boundary itself, and such a definition is probably the one most technically correct from the standpoint of geometry and general usage. However, it is inconsistent with traditional usage in descriptive botany, which treats the margin as an entity of substance both semantically and conceptually. The semantic antecedent of some descriptors is "margin," whereas the antecedent of others is the structure as a whole (e.g., leaf). |
furrow |
= colpus, fossula, groove, sulcus, vallecula |
FEATURE |
|
An elongate depression that is relatively shallow and narrow. |
cone-shaped |
= conic(al) |
apex |
|
Transversely round, essentially triangular in median longitudinal section, and broadest proximally. See also obconic(al). |
simple 1 |
|
architecture |
|
Externally unitary and comprising only one basic morphological unit; not compound in either sense of that term. |
petiolar |
|
insertion |
|
Upon or otherwise directly associated with the petioles. |
dorsal (not recommended) |
= abaxial |
insertion |
|
On or pertaining to the side or portion of a lateral structure that faces (or would face) away from the bearing axis when (or if) the axis of the lateral structure is (or were) oriented in the same general direction as the bearing axis. |
lamina 1 pl. laminae |
= blade |
STRUCTURE |
|
The expanded, more or less planate, distal portion, when present, of a leaf, leaflet or bract. |
bristled |
= aristate, awned |
apex |
|
Bearing one or more bristles (aristae, awns, setae). |
farinose |
< mealy |
pubescence |
|
Bearing minute, relatively stout trichomes, collectively meal- or flour-like (farinaceous) and easily detached. See also farinaceous. |