obterete |
|
solid shape |
|
Inversely terete. |
epipterous |
|
solid shape |
|
Alate with a single terminal wing. |
ligule 1 |
|
STRUCTURE |
|
A strap-shaped enation from or distal portion of a structure. |
glochidiate |
|
pubescence |
|
Bearing glochids (glochidia). |
grumous |
|
solid shape |
|
Having an external aspect like a cluster of grains, basically convex overall. |
umbellate |
|
architecture |
inflorescence |
Comprising one or more umbels. |
dorsifixed |
|
fixation |
|
Attached on the abaxial side well above the base. |
extravaginal |
|
position |
|
Distal to or outside the leaf sheath. |
autotrophic |
|
nutrition |
plant |
Independent of other organisms for its nourishment, itself synthesizing all essential substances not directly available from the non-living environment. |
seed |
|
STRUCTURE |
|
A mature or ripened ovule containing an embryonic sporophyte and a nutritive tissue (endosperm or perisperm) with stored food that sustains the initial growth of the embryo upon germination, except when such food reserve is stored instead in the cotyledon(s) of the embryo itself, these enclosed by one or two integuments (the testa), the whole serving as a propagule. A fertile seed (one containing a viable embryo) normally results from sexual fertilization of an egg by a sperm; however, fertile seeds are sometimes produced asexually by apomictic processes (e.g., parthenogenesis). |
loose 2 |
|
texture |
|
Soft overall, discontinuously and only weakly cohesive. |
cyme |
|
nominative |
inflorescence |
Determinate and constituting a compound dichasium or monochasium, the flowers maturing from the center outward (i.e., the distal or inner flowers maturing first); often more or less flat-topped. See also cymule, dichasium, helicoid cyme, monochasium, rhipidium, scorpioid cyme. |
phanerocotyloid |
|
germination |
seed |
Having the cotyledon(s) emerging from the seed coat. |
superior 2 |
|
position |
ovary |
Not enclosed to any degree by a floral tube casing, the perianth and/or androecium thus arising beneath (proximal to) it. |
pollinial |
|
arrangement |
pollen |
Polyadal with the grains of individual thecae (pollen sacs), or of fused thecae, compacted and forming tightly coherent masses (pollinia) that constitute the basic dispersal units, these sometimes distally attenuate to a sterile caudicle (translator arm), sometimes united by caudicles in groups of two or more, the caudicle(s) sometimes attached to a viscidium, either directly or through an intervening stipe; esp. in Asclepiadaceae, Orchidaceae. |
massula pl. massulae |
|
STRUCTURE |
|
A body of coherent pollen grains, dispersed as a unit; esp. in Asclepiadaceae, Orchidaceae. |
derivation |
|
CHARACTER |
|
Ontogenetic origin. |
placenta pl. placentae, placentas |
|
STRUCTURE |
|
An ovule-bearing zone of the tissue surface bordering an ovary locule; of merely topographic, not histological, significance; may be a part of the ovary wall proper or an extension from it, or a part of the central axis of the ovary or an extension from it. |
bundle scar |
|
FEATURE |
|
A smaller scar within the bounds of a leaf scar at the point where a vascular bundle traversed the abscission layer between stem and leaf. |
hypocotyl |
|
STRUCTURE |
|
That portion of an embryo axis between the level of cotyledon insertion above and the root meristem (or radicle, if present) below. |
acroscopic |
|
orientation |
subordinate structure |
Directed, facing, or pointing ("looking") toward the apex of the bearing structure. |
meniscoid |
|
solid shape |
|
Relatively thin with opposite, round, broad faces, one convex and one concave (as viewed externally), the circumferential edge angular or rounded; like a meniscus. See also discoid (disciform), lenticular (biconvex, lens-shaped), patelliform (kneecap-shaped). |
primocane |
|
STRUCTURE |
|
A biennial or perennial stem before it has begun flowering, when the latter does not occur until at least its second season of growth; esp. in Rubus (Rosaceae). |
parasitic |
|
nutrition |
plant |
Heterotrophic and obtaining essential nourishment directly from other living organisms that derive no reciprocal benefit. |
transverse 2 |
|
orientation |
|
Perpendicular to the long axis of the context of reference. |