|
basifixed |
|
fixation |
|
Attached at its base. |
|
orbiculate |
= round; orbicular misapplied |
plane shape |
|
Circular. |
|
comb-shaped |
= pectinate |
plane shape |
|
Finely divided, the divisions slender, oriented more or less perpendicular to the central axis, and resembling the teeth of a comb. |
|
piliferous |
|
apex |
|
Having a distinct, fine, weak, hair-like portion or protrusion. |
|
pulverulent |
= granuliferous, powdery |
coating |
|
Covered with a more or less even deposit of fine, dry particles. See also lentiginous (dusty, lentiginose), which is not clearly distinct in its application. |
|
dyad |
|
STRUCTURE |
|
A pair of coherent pollen grains shed as a unit. |
|
rostrate |
= beaked |
apex |
|
Terminating in a relatively long, tapering, more or less rigid point. See also rostellate (small-beaked). |
|
feminine |
= female |
reproduction |
|
Of the sex that produces megaspores and ova. |
|
setaceous |
= bristle-shaped, setiform |
solid shape |
|
Elongate, slender, terete, straight, terminating in a fine point, and apparently stiff; like a bristle. |
|
gemma pl. gemmae |
|
STRUCTURE |
|
A vegetative propagule by which a gametophyte reproduces asexually; produced by a process analogous to budding, from a more or less cupulate specialized area (gemmae cup) on the surface of the plant body (thallus); in Psilotophyta, Lycopodiophyta, Equisetophyta, Polypodiophyta. |
|
knee 2 |
|
STRUCTURE |
|
An emergent portion of an otherwise normally submerged secondary root of a wetland tree, resembling a bent human knee. |
|
axe-shaped |
= dolabriform |
solid shape |
|
Elongate, basally terete, becoming strongly compressed toward an abruptly and unilaterally broader apex; like an axe (handle plus head). |
|
membranous |
= membranaceous |
texture |
|
Extremely thin, pliable, and fairly tough; like animal membrane. See also chartaceous (papery, papyraceous), pergamentaceous (parchment-like). |
|
calceolate |
= slipper-shaped |
solid shape |
|
Relatively thin-walled with an essentially hollow interior that is open on one side at the broader end. |
|
obtuse 1 |
= blunt |
apex |
|
Bluntly angular; having an angular tip whose generalized sides intersect at an angle of 90° or more. |
|
clinandrium pl. clinandria |
|
FEATURE |
|
The cavity in a floral column (gynostemium) within which the anthers are borne. |
|
perianth tube |
|
STRUCTURE |
|
A relatively narrow, fully connate portion of a syntepalous (gamotepalous) perianth proximal to a broader portion (limb) that comprises the distinct or connate distal portions of the tepals. |
|
prop root |
|
STRUCTURE |
|
A relatively stout adventitious root arising from the lower portion of a main stem and extending outward and downward toward the substrate, within which it ultimately becomes anchored, thus buttressing the aboveground portion of the plant. |
|
divaricate |
|
arrangement |
|
Strongly divergent. |
|
rhizoid |
|
STRUCTURE |
|
Any structure that is similar to a root in appearance and function but that is not a true root ontogenetically and anatomically, especially one produced from a gametophyte thallus. |
|
sellaeform |
|
solid shape |
|
See selliform. |
|
subsidiary cell |
|
STRUCTURE |
|
One of the cytologically distinctive epidermal cells that are sometimes present in a stomate and that surround and are regularly oriented in relation to the guard cells. |
|
intravaginal |
|
position |
|
Within the leaf sheath. |
|
toothed |
= dentate |
margin |
|
Having regularly spaced, angular convexities oriented more or less perpendicular to the generalized perimeter. See also small-toothed (denticulate); See also sawtoothed (serrate), scalloped (crenate), small-sawtoothed (serrulate), small-scalloped (crenulate). |
|
lineolate 1 |
|
coloration |
|
Finely lineate, the lines short and often irregularly oriented. |
