|
repand |
|
margin |
|
Gently or shallowly sinuate. |
|
repent |
= creeping |
habit |
axis |
Procumbent and rooting adventitiously at intervals along its length. |
|
replicate |
|
vernation |
|
Each with the distal portion of its blade recurved, paralleling and contiguous with the proximal portion. |
|
replum pl. repla |
< dissepiment, septum |
STRUCTURE |
|
The persistent wall or partition that separates the two locules of a silicle or silique. |
|
reproduction |
|
CHARACTER |
|
Type, morphology, disposition, function and/or dissemination of reproductive structures. |
|
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. |
|
resinous 1 |
|
coating |
|
Of liquid or hardened resin. |
|
resinous 2 |
|
texture |
|
Having the consistency of resin. |
|
resupinate |
|
orientation |
lateral structure |
Inverted due to twisting distal to the point of insertion during development. |
|
reticulate 1 |
= anastomosing, net-like, netted |
architecture |
tertiary and higher-order laminar veins, excl veinlets |
Interconnecting more or less regularly. |
|
reticulate 2 |
= netted |
coloration |
|
Having a pattern of interconnected fine lines of contrasting hue and/or intensity. |
|
reticulate 3 |
= netted |
relief |
|
Having prominulous, more or less regularly interconnected lines. |
|
reticulodromous |
|
venation |
|
Having a single median primary vein that branches to either side along the length of the lamina, the secondary veins running thence toward the margin, branching repeatedly, becoming less distinct, and yielding a dense higher-order reticulum near the margin. |
|
retrorse |
|
orientation |
|
Directed generally backward, toward the proximal end of the context of reference, parallel or at an acute angle to the bearing structure. |
|
retuse |
|
apex |
|
Round overall with an obtuse terminal sinus. |
|
revolute 1 |
|
margin |
|
Rolled inward abaxially. |
|
revolute 2 |
|
vernation |
|
Each rolled abaxially inward from the lateral margins. |
|
rhachilla |
|
STRUCTURE |
|
See rachilla. |
|
rhachis |
|
STRUCTURE |
|
See rachis. |
|
rhipidiate |
|
architecture |
inflorescence |
Comprising one or more rhipidia. |
|
rhipidium pl. rhipidia |
|
nominative |
inflorescence |
A cyme with the branches alternate and disposed in two opposite ranks along the main axis, the whole fan-like. |
|
rhizoid |
|
STRUCTURE |
|
Any structure that is similar to a root in appearance and function but that is not a true root ontogenetically and anatomically, especially one produced from a gametophyte thallus. |
|
rhizomatous |
|
architecture |
plant |
Having rhizomes. |
|
rhizome |
= rootstock |
STRUCTURE |
|
An underground, usually horizontal stem, often superficially resembling a root but easily distinguished by the presence of nodes, from which it branches exogenously to produce the aboveground portion(s) of the shoot. |
|
rhizophore |
|
STRUCTURE |
|
A stem branch that bears no leaves and from which roots eventually arise; esp. in Selaginellaceae. |
