|
translator arm |
= caudicle |
STRUCTURE |
|
An attenuate end portion by which a pollinium adheres to a pollinating insect, either directly or by means of a terminal viscidium, the latter, when present, sometimes attached by an intervening stipe; esp. in Asclepiadaceae, Orchidaceae. |
|
translucent |
< hyaline, pellucid |
coloration |
|
Transmitting light uniformly and diffusely. See also transparent. |
|
transparent |
< hyaline, pellucid |
coloration |
|
Transmitting light uniformly and without diffusion; clear, like glass. See also translucent. |
|
transverse 1 |
|
dehiscence |
|
More or less perpendicular to the central axis. |
|
transverse 2 |
|
orientation |
|
Perpendicular to the long axis of the context of reference. |
|
trapeziform |
|
plane shape |
|
Four-sided and either asymmetrical or bilaterally symmetrical like a triangle truncated distally perpendicular to its central axis. |
|
tree |
|
nominative |
plant |
Perennial, woody, more or less erect, relatively tall, with one or more distinct aboveground portions each with a single, relatively stout, columnar, main stem (trunk or bole) that bears branches. See also bush, frutex, shrub, subshrub, suffrutex, undershrub, woody clump. |
|
tree-form |
> arboreous, arborescent |
habit |
plant |
Having or developing the character of a tree. See also bushy, frutescent, fruticose, shrubby, subshrubby, suffrutescent, suffruticose, woody-clumping. |
|
tree-like |
= dendritic |
architecture |
|
Like the branched axial structure of a tree. |
|
tri… 1 |
= three-… |
prefix |
|
Indicating presence of or constitution by three entities of the type denoted by the term's stem; as in tricarpellate, trifurcate, trilocular. |
|
tri… 2 |
= thrice-…, triple-… |
prefix |
|
Indicating presence of three hierarchical orders of the type of entity or pattern denoted by the term's stem; as in tripinnate. See also entries for particular terms beginning with this prefix whose meanings, at least in some applications, are more specific than usually indicated by such combination. |
|
trichome |
> bristle, capillus, glochid, glochidium, hair, lepis, scale, seta, squama, squamella, squamule; >< cilium |
STRUCTURE |
|
Any superficial, unicellular or multicellular structure arising entirely from an epidermis. Unlike other epidermal enations or coverings, trichomes are cellular structures. |
|
trichotomocolpate |
|
architecture |
pollen grain |
Having a triradiate surficial groove (colpus). |
|
trichotomous |
|
architecture |
axis |
Branching by division of the apical meristem producing three coordinate but not necessarily equal derivatives from each division. |
|
trigamous |
|
reproduction |
inflorescence |
Bearing flowers of three differing sexual constitutions; esp. in Asteraceae (Compositae). |
|
trigeminous |
= tergeminate, trijugate |
architecture |
foliaceous structure |
Compound with three orders of leaflets, each order bifoliolate. |
|
trigonous |
= three-angled, triquetrous; > deltoid, obdeltoid |
solid shape |
|
Elongate with three sides that meet at acute or obtuse angles. |
|
trijugate |
= tergeminate, trigeminous |
architecture |
foliaceous structure |
Compound with three orders of leaflets, each order bifoliolate. |
|
trilete |
|
architecture |
spore |
Having a triradiate tetrad scar. |
|
trioecious |
|
reproduction |
taxon |
Having some flowers or spikelets functionally unisexual and some bisexual, some plants having only staminate or only pistillate types, other plants having only bisexual types. |
|
triple-… |
= thrice-…, tri-… |
prefix |
|
Indicating presence of three hierarchical orders of the type of entity or pattern denoted by the term's stem; as in triple-palmate. See also three-…. |
|
triquetrous |
= three-angled, trigonous; > deltoid, obdeltoid |
solid shape |
|
Elongate with three sides that meet at acute or obtuse angles. |
|
trochlear |
= pulley-wheel-shaped |
solid shape |
|
Discoid (disciform) but with the circumferential surface concave between faces. |
|
trophophyll |
= sterile frond |
STRUCTURE |
|
A frond that does not bear sporangia; in Polypodiophyta. See also fertile frond. |
|
trowel-shaped |
= trullate, trulliform |
plane shape |
|
Broadest below the middle, more or less straightly attenuate to either end, the sides angled at the level of greatest width; like the blade of a mason's trowel. See also obtrullate, obtrulliform. |
