|
rhizophore |
|
STRUCTURE |
|
A stem branch that bears no leaves and from which roots eventually arise; esp. in Selaginellaceae. |
|
caudex pl. caudices |
|
STRUCTURE |
|
The short, persistent, thickened, more or less erect, main stem of a perennial plant that otherwise has annual stems. |
|
woody-clumping |
|
habit |
plant |
Having or developing the character of a woody clump. See also arboreous, arborescent, bushy, frutescent, fruticose, shrubby, subshrubby, suffrutescent, suffruticose, tree-like. |
|
extent |
|
CHARACTER |
|
Reach of the septum or septa within the ovary or fruit, relative to the ovary wall or pericarp and its center. |
|
tetradynamous |
|
architecture |
flower, androecium |
Diadelphous with four stamens in one set and two in the other. See also didynamous. |
|
cyathium pl. cyathia |
|
nominative |
inflorescence |
Resembling a single flower, the unbranched axis very short with a terminal pistillate flower and several lateral staminate flowers, the whole subtended and to some degree enclosed by a cupulate envelope of bracts, the flowers diminutive and presumed to be evolutionarily reduced; characteristic of Euphorbia. |
|
polygamous |
|
reproduction |
taxon |
Having both bisexual and unisexual flowers, borne on the same or on different plants. |
|
fenestrate |
|
architecture |
pollen grain |
Having more or less isodiametric, regularly disposed lacunae. |
|
obtrulloid |
|
solid shape |
|
Inversely trulloid. |
|
base |
|
CHARACTER |
|
Configuration of the lowermost or proximal portion of a structure, its extent determined somewhat subjectively in relation to the shape of the structure as a whole. The concept of base varies from one descriptive context to another, since the base is not a clearly delimited, morphologically distinct entity. The terms for describing basal condition are not strictly coordinate logically — some are more inclusive than others, and some describe conditions involving what can be regarded as appendages — and precise characterization may require using more than one descriptor. The semantic antecedent of some descriptors is "base," whereas the antecedent of others is the structure as a whole (e.g., leaf ). |
|
opposite 2 |
|
arrangement |
|
Having the members of each whorl inserted directly above and/or below those of the next adjacent whorl(s). See also antipetalous, antisepalous. |
|
scorpioid cyme |
|
nominative |
inflorescence |
A cyme in which each axial segment branches to only one side, the successive segments branching alternately to either side, the whole appearing to have a continuous, elongate, straight to zig-zag main axis. See also cincinnus, helicoid cyme (bostryx). |
|
accessory 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. |
|
prophyllar |
|
position |
|
Upon or otherwise directly associated with the prophylls (bracteoles, bractlets). |
|
cloying |
|
odor |
|
Sickeningly sweet. |
|
birettaform |
|
solid shape |
|
Approximately square in cross section and shallowly convex at the top; like a biretta (Roman Catholic cleric's hat). |
|
hysterophyllous |
|
maturation |
non-foliar structure, esp. flower |
Maturing later than the leaves. |
|
palmatifid |
|
plane shape |
|
Palmately lobate; having three or more lobes whose longitudinal axes radiate from a common point. |
|
semielliptic |
|
arrangement |
bundle scars |
Forming an incomplete ellipsis, like the letter U. |
|
adenopetalous 1 |
|
architecture |
flower, perianth, corolla |
Having petals produced from glandular structures. |
|
mamilla pl. mamillae |
|
STRUCTURE |
|
A nipple- or teat-shaped protrusion. |
|
pulvinus pl. pulvini |
|
STRUCTURE |
|
A short, cushion-like swelling at the junction of stem and leaf or of inflorescence axis and branch. |
|
comose |
|
pubescence |
|
Bearing a prominent single tuft of relatively long and slender, flexible, capillate trichomes (coma). |
|
infrabracteal |
|
position |
|
Upon the axis directly below a bract insertion. |
|
partial |
|
extent |
|
Not reaching fully from the ovary wall or pericarp to the center of the ovary or fruit and/or from the apex to the base of its interior, thus not completely separating adjacent locules, which are recognized and delimited by extrapolating from the incomplete septal boundary(ies), the ovary or fruit nonetheless effectively unilocular. |
