|
disk |
|
STRUCTURE |
|
See disc. |
|
acroramous |
|
architecture |
axis |
Branching at or near the apex. |
|
floricane |
|
STRUCTURE |
|
A biennial or perennial stem after it has begun flowering, when that does not occur until at least its second season of growth; applied especially to the stems of brambles (Rubus spp.). |
|
pterocaulous |
|
architecture |
plant |
Having alate (winged) stems. |
|
unequal |
|
size |
equivalent structures |
Distinctly differing in extent. See also equal, subequal. |
|
alete |
|
architecture |
spore |
Lacking a tetrad scar (surficial ridge or angle resulting from coherence with others produced from the same spore mother cell). |
|
silicle |
|
nominative |
fruit |
Like a silique, but only slightly longer than broad to broader than long; esp. in Brassicaceae (Cruciferae), Capparaceae. |
|
vascular |
|
position |
|
Upon or otherwise directly associated with the vasculature. |
|
silique |
|
nominative |
fruit |
Dry, septifragal, two-loculed and derived from a single, superior, compound ovary; much longer than broad; dehiscing along two sutures, one adaxial, one abaxial, leaving a single persistent septum (replum) after the two valves of the pericarp have fallen away; esp. in Brassicaceae (Cruciferae), Capparaceae. See also silicle. |
|
vascular bundle |
|
STRUCTURE |
|
A discrete strand of conducting tissues (xylem, phloem) and associated cells (e.g., cambium) within a stem or other axial structure. |
|
elongate |
|
solid shape |
|
Longer in one dimension than in any other. |
|
andropetalous 2 |
|
derivation |
flower, perianth, corolla |
Having some or all petals derived from stamens. |
|
ray floret |
|
STRUCTURE |
|
A floret that has a zygomorphic corolla, is pistillate (either fertile or sterile) or neuter, and is borne in a radiate capitulum (head) peripheral (proximal) to the disc florets; in Asteraceae (Compositae). |
|
superposed 2 |
|
position |
buds |
Axillary in pairs, one member of each pair directly above the other. |
|
corolla tube 1 |
|
STRUCTURE |
|
A relatively narrow, fully connate portion of a sympetalous (gamopetalous) corolla proximal to a broader portion (limb) that comprises the distinct or connate distal portions of the petals; except in bisexual or staminate disc florets of Asteraceae (Compositae). |
|
canalicular |
|
position |
|
Upon or otherwise directly associated with the channel of a petiole or petiolule. |
|
petiolar |
|
insertion |
|
Upon or otherwise directly associated with the petioles. |
|
sorus pl. sori |
|
STRUCTURE |
|
A cluster of sporangia borne upon a fertile frond, usually on its abaxial surface; often covered during maturation by a protective membrane, the indusium, that is an outgrowth from the epidermis; in Polypodiophyta. |
|
epigynous |
|
insertion |
perianth, calyx, corolla, androecium |
Having its proximal portion adnate to the full length of the gynoecium, the free portion thus arising from the apex of the gynoecium. See also hypogynous, perigynous. |
|
antisepalous |
|
position |
equivalent floral structures |
Each inserted directly above or below a sepal. In place of this term, the phrase "opposite the sepals" is often used, but that contradicts the sense of opposite as otherwise employed (arrangement of lateral structures along an axis) and should be avoided. |
|
muriculate |
|
relief |
|
Finely muricate. |
|
retuse |
|
apex |
|
Round overall with an obtuse terminal sinus. |
|
syncolpate |
|
architecture |
pollen grain |
Having two or more fused or confluent surficial grooves (colpi). |
|
laminar 1 |
|
insertion |
|
Upon or otherwise directly associated with the lamina (blade) of a foliaceous structure. |
|
spinulose |
|
margin |
|
Finely spinose. |
