planoconcave |
|
solid shape |
|
Relatively thin with opposite broad faces, one plane and one concave. |
heterogamous |
|
reproduction |
plant, inflorescence |
Having flowers that differ distinctly in size, shape and/or constitution. |
planoconvex |
|
solid shape |
|
Relatively thin with opposite broad faces, one plane and one convex. |
prominence |
|
CHARACTER |
|
Elevation or depression of a discrete feature relative to the surrounding surface. |
rectangular |
|
plane shape |
|
Basically four-sided, the sides more or less straight, those of each opposing pair more or less parallel, the generalized angles between adjacent sides approximately 90°. |
palmatifid |
|
solid shape |
|
Palmately lobate; having three or more lobes whose longitudinal axes radiate from a common point. |
resin |
|
SUBSTANCE |
|
A substance of high molecular weight consisting of organic acids, esters, and/or terpenes, produced within plant tissue and exuded from wounds as a liquid that hardens to an amorphous glassy state upon exposure. |
obvolute 2 |
|
vernation |
|
Conduplicate with the lateral edges of each leaf alternately overlapping those of the oppositely oriented, distally next adjacent one. |
germination 1 |
|
CHARACTER |
|
The process wherein a dormant embryo resumes active metabolism and growth, the primary root and shoot emerging from the seed coat, the young sporophyte thereupon entering the seedling stage. |
obdeltate |
|
plane shape |
|
Approximately equilaterally triangular, broadest distally, and regularly attenuate to an angular base; inversely deltate; equilaterally cuneate. |
subpetiolar |
|
insertion |
|
Just below the point of petiole insertion. |
perfect |
|
architecture |
flower |
Having functional pistil(s) and functional stamen(s) both present, thus bisexual (hermaphroditic). |
symmetric(al) 1 |
|
plane shape |
|
Divisible into essentially equal halves along one or more lines or planes. |
gynecandrous |
|
reproduction |
taxon |
Monoecious, each inflorescence having a distal sector with only pistillate flowers and a proximal sector with only staminate ones. |
calyx pl. calyces |
|
STRUCTURE |
|
Collectively, the sepals of a flower, whether distinct or connate; the outer or proximal envelope of a differentiated perianth, whether the other envelope (corolla) is also actually present or is deemed to be secondarily absent due to evolutionary reduction. |
acropetal |
|
development |
|
Proceeding toward the apex, thus more advanced basally or proximally than apically or distally within a given frame of reference. |
toothlet |
|
STRUCTURE |
|
A diminutive tooth (dens). See also sawtooth, sawtoothlet, scallop (crena), scalloplet (crenule). |
intravaginal |
|
position |
|
Within the leaf sheath. |
beard |
|
STRUCTURE |
|
A growth of relatively long, erect, flexible, capillary trichomes from one or more limited sectors of a structure's surface. |
clustered 1 |
|
arrangement |
|
Disposed in one or more aggregates, the members of each inserted close together, thence widely divergent from one another. |
ligule 1 |
|
STRUCTURE |
|
A strap-shaped enation from or distal portion of a structure. |
inflorescence 2 |
|
STRUCTURE |
|
The basic architectural unit of the flower-producing portion of a plant; comprising one or more flowers, their associated supporting axes (peduncles, main axes, branches and pedicels), if any, and the appendages thereto (bracts, bractlets or bracteoles or prophylls, involucres, involucels, and glumes), if any; delimited by the insertion or gradation of a single peduncle, peduncle cluster, pedicel, pedicel cluster, or sessile flower, as the case may be, directly upon or into some proximal vegetative structure not of one of these types; depending upon the type(s) of flowers included, may be bisexual (all flowers bisexual), staminate (all flowers staminate), pistillate (all flowers pistillate), sterile (all flowers sterile), or mixed (two or more types of flowers present); most appropriately described using nominative terms. |
leaf-opposed |
|
position |
|
Nodal and directly opposite the leaf. |
tepal |
|
STRUCTURE |
|
Any member of an undifferentiated perianth; may be green and foliaceous or colored and petaloid, distinct or else connate with one or more others, and/or free or else adnate with one or more other floral structures. |
tunicate |
|
architecture |
structure |
Having a tunic. |