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hilum 1 pl. hila |
|
FEATURE |
|
The scar left on a seed at the point of its abscission from the funiculus. |
|
bulla pl. bullae |
= blister, pustule |
FEATURE |
|
A relatively coarse, rounded protrusion or convexity. See also papilla. |
|
tetrad scar |
|
FEATURE |
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A surficial ridge or angle resulting from coherence with other spores produced from the same mother cell. |
|
stomatal pore 1 |
= stoma (strict sense) |
FEATURE |
|
The opening between and regulated by the two guard cells of a stomate (stomatal apparatus). |
|
punctum pl. puncta |
= dot |
FEATURE |
|
A small, generally round sector of distinct coloration or relief. |
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hilum 2 pl. hila |
|
FEATURE |
|
The more or less central point within a starch grain of intracellular origin, about which the successive layers of starch were accreted more or less symmetrically. |
|
stomatal pore 2 |
= stomium |
FEATURE |
|
The opening in the wall of a sporangium, between the lip cells, through which the spores exit; in Psilotophyta, Lycopodiophyta, Equisetophyta, Polypodiophyta. |
|
suture |
|
FEATURE |
|
An evident line of ontogenetic union. |
|
collar 2 |
|
FEATURE |
|
The junction between the sheath and blade of a leaf; esp. in Poaceae (Gramineae). |
|
macula pl. maculae |
= blotch, spot |
FEATURE |
|
An area that differs in color from the rest of a structure's surface, usually due to differing coloration. See also eyespot. |
|
fissure |
|
FEATURE |
|
A relatively narrow, split or crack in the outer tissue(s) of a structure. |
|
bundle scar |
|
FEATURE |
|
A smaller scar within the bounds of a leaf scar at the point where a vascular bundle traversed the abscission layer between stem and leaf. |
|
pustule |
= blister, bulla |
FEATURE |
|
A relatively coarse, rounded protrusion or convexity. See also papilla. |
|
stomium pl. stomia |
= stomatal pore |
FEATURE |
|
The opening in the wall of a sporangium, between the lip cells, through which the spores exit; in Psilotophyta, Lycopodiophyta, Equisetophyta, Polypodiophyta. |
|
chamber (not recommended) |
= cell (not recommended), locule |
FEATURE |
|
Any structurally distinct compartment within an anther, ovary, fruit or other organ; not necessarily having any evolutionary integrity. |
|
scrobis pl. scrobes |
= fovea, pit |
FEATURE |
|
A small, rounded depression. |
|
fixed |
|
fixation |
|
Attached to the bearing structure in a manner allowing no significant rotation or declination in relation to it. |
|
dorsifixed |
|
fixation |
|
Attached on the abaxial side well above the base. |
|
basifixed |
|
fixation |
|
Attached at its base. |
|
ventrifixed |
|
fixation |
|
Attached on the adaxial side well above the base. |
|
versatile |
|
fixation |
|
Attached in a manner allowing free rotation and declination. |
|
sub-basifixed |
|
fixation |
|
Attached just above its base. |
|
connate |
|
fusion |
equivalent structures |
Intimately fused, with strong histological continuity. |
|
free |
|
fusion |
dissimilar structure(s) |
Not fused with or joined to any other dissimilar structure(s). |
|
syngenesious |
|
fusion |
flower, androecium |
Having the anthers connate or coherent and forming a ring. |
