polycarpic |
|
reproduction |
plant |
Normally fruiting repeatedly prior to senescence. |
haft |
|
STRUCTURE |
|
The narrow portion of a structure that is notably constricted. |
centralium pl. centralia |
|
FEATURE |
|
A central longitudinal cavity within the seed; esp. in Arecaceae (Palmae). |
barbed 2 |
|
solid shape |
|
Having one or more relatively short, stiff, acutely inserted or bent, antrorse or retrorse, terminal and/or lateral hook-like appendages; esp. awns or setae. |
divaricate |
|
arrangement |
|
Strongly divergent. |
pseudoterminal |
|
position |
|
Only apparently terminal; originally subapical but displaced toward the apex by differential growth during development. |
peloric |
|
architecture |
corolla |
Regular when the usual condition in the taxon is irregular. |
prolate |
|
solid shape |
|
Symmetrically elongate parallel to the developmental or polar axis. |
circinate 1 |
|
solid shape |
|
Terete and rolled downward from the apex in a tight coil. |
sporophyte |
|
PLANT |
|
The main, ultimate, spore-bearing stage in the diploid (2n chromosomes) phase of a taxon's life cycle. Two morphologically and genetically distinct and alternate phases together constitute the complete life cycle in sexually reproducing taxa, the other phase (gametophytic) being haploid (n chromosomes). Any taxon whose life cycle is confined to one or the other phase is limited to asexual means of reproduction, since sexual reproduction with consequent genetic recombination is impossible without alternation between haploid and diploid states via meiosis and fertilization. The term sporophytic applies to any part of the diploid phase, including all unicellular to multicellular entities belonging to it, whereas sporophyte is reserved for the principal and directly spore-producing stage of that phase. |
quincunx |
|
aestivation |
|
Imbricate in one whorl of five members, two wholly exterior, two wholly interior, and one partially exterior and partially interior. |
petal |
|
STRUCTURE |
|
One of the one or more constituent members of a corolla; colored and showy in many taxa, inconspicuous in size and/or color in others; may be distinct or else connate with one or more others, and/or may be free or else adnate to one or more other floral structures. |
entire |
|
margin |
|
Uninterrupted; not deviating significantly from its general line, thus lacking any localized convexities or concavities. |
toothlet |
|
STRUCTURE |
|
A diminutive tooth (dens). See also sawtooth, sawtoothlet, scallop (crena), scalloplet (crenule). |
rhachilla |
|
STRUCTURE |
|
See rachilla. |
opposite 1 |
|
arrangement |
|
Disposed in pairs along the axis, the members of each pair inserted at the same level across from one another. |
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°. |
staminate |
|
architecture |
inflorescence, flower, floret |
Having functional stamens but no functional pistils, thus unisexual and male. |
tunicate |
|
architecture |
structure |
Having a tunic. |
cochlear |
|
aestivation |
|
Imbricate with one member larger than and exterior to the others, parallel to one that is internal to all the others, strongly incurved, and enclosing the others. |
equitant |
|
arrangement |
|
Alternate, distichous, basal, and congested, each conduplicate with its lateral edges overlapping and/or overlapped by those of the immediately adjacent one(s). |
rounded |
|
apex |
|
Convex overall and more or less regularly curved. |
muricate |
|
relief |
|
Having short, hard, more or less acute, transversely round protrusions overall. See also muriculate. |
valvate 3 |
|
dehiscence |
anther |
Poricidal with the pores formed by the raising of small flaps (valves) in the exterior wall. |
scorpioid-cymose |
|
architecture |
inflorescence |
Comprising one or more scorpioid cymes. See also cincinnate, helicoid-cymose. |