vascular |
|
insertion |
|
Upon or otherwise directly associated with the vasculature. |
zygomorphic |
|
architecture |
perianth, calyx, corolla |
Bilaterally symmetric; divisible into two essentially equal portions along only one median logitudinal plane. |
gynaecium |
|
STRUCTURE |
|
See gynoecium. |
adventitious root |
|
STRUCTURE |
|
A root that arises laterally from some part of a shoot, often from the lower portion of a main stem. |
resupinate |
|
orientation |
lateral structure |
Inverted due to twisting distal to the point of insertion during development. |
haustorium pl. haustoria |
|
STRUCTURE |
|
An absorbing and anchoring organ, often root-like, excrescent from a vegetative part of a parasitic or hemiparasitic plant, by which the plant communicates intimately with and derives sustenance and support from its host plant, into whose tissues the haustorium intrudes. |
rugulose |
|
relief |
|
Slightly or finely rugose (corrugate, wrinkled). |
hysteranthous |
|
maturation |
non-floral structure, esp. leaf |
Maturing later than the flowers. |
ringed |
|
relief |
bark |
Fissured, mainly horizontally, with at least some of the fissures individually encircling the stem more or less completely. |
intricate |
|
arrangement |
|
Entangled; irregularly intertwined and not readily disentangled. |
infrabracteal |
|
insertion |
|
Upon the axis directly below a bract insertion. |
laminar 1 |
|
insertion |
|
Upon or otherwise directly associated with the lamina (blade) of a foliaceous structure. |
laminar 1 |
|
position |
|
Upon or otherwise directly associated with the lamina (blade) of a foliaceous structure. |
knee-rooted |
|
architecture |
plant |
Having knee roots. |
spathulate |
|
plane shape |
|
See spatula-shaped, spatulate. |
cirrhous |
|
apex |
|
Having a narrow spiral tip that is a continuation of the central primary vein. |
sinus pl. sinus, sinuses |
|
FEATURE |
|
The space, indentation, or invagination (or, for some descriptive purposes, the outline thereof) between and delimiting any two consecutive or adjacent lobes or teeth of a structure. |
meniscoid |
|
solid shape |
|
Relatively thin with opposite, round, broad faces, one convex and one concave (as viewed externally), the circumferential edge angular or rounded; like a meniscus. See also discoid (disciform), lenticular (biconvex, lens-shaped), patelliform (kneecap-shaped). |
spirolobal |
|
arrangement |
cotyledons |
Incumbent and folded together transversely. |
dichasium pl. dichasia |
|
nominative |
inflorescence |
Determinate and falsely dichotomous with each axial segment bearing a sessile terminal flower and either a pair of opposite pedicellate lateral flowers or a pair of opposite lateral branches. See also cincinnus, cyme, cymule, helicoid cyme, monochasium, scorpioid cyme. |
monolete |
|
architecture |
spore |
Having a single linear tetrad scar (surficial ridge or angle resulting from ontogenetic coherence with others produced from the same spore mother cell). |
obscure |
|
manifestation |
|
Hardly evident. |
tetradal |
|
arrangement |
pollen |
Shed in groups of four, each an intact tetrad with original configuration unchanged; geometric arrangement of the grains may be tetrahedral, tetragonal, or linear, depending upon mode of pollen mother cell division. |
palate |
|
STRUCTURE |
|
The lower, prominent labium (lip) of a personate (gaping, ringent) corolla. |
enzymatic |
|
exudation |
|
Secreting a digestive exoenzyme; in carnivorous plants. |