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extravaginal |
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insertion |
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Distal to or outside the leaf sheath. |
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fungiform |
= mushroom-shaped |
solid shape |
|
Having a cylindric base and a considerably broader, pulvinate distal portion; like the generalized form of a mushroom. |
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sporangium pl. sporangia |
= spore case |
STRUCTURE |
|
A spore-producing organ; basically capsular, often supported by a slender stalk (sporangiophore), often operculate (lidded). In Bryophyta and Polypodiophyta, a distinct portion of the sporangial wall effects regular dehiscence at maturity. Sporangia or their equivalents are also present, but of little or no descriptive significance, in seed plants. |
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subtending |
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position |
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Arising from the axis just below and very near to the base of some other specified lateral structure. This term is meaningless if the structure that is subtended is not indicated. |
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involucel |
|
STRUCTURE |
|
One or more closely proximate whorls of bractlets (bracteoles, prophylls) immediately subtending (below or outside) a subordinate portion of an inflorescence that is subtended as a whole by an involucre, the bractlets often leaf-like, sometimes petaloid. |
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top-shaped |
= turbinate |
solid shape |
|
Broadly obovoid-obconic; like a spinning top. See also pear-shaped (pyriform), obturbinate. |
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velamen pl. velamina |
|
STRUCTURE |
|
A thin, often chartaceous (papery, papyraceous) or pergamentaceous (parchment-like), outermost tissue layer of an aerial root; esp. in Orchidaceae. |
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aerial |
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location |
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Above ground or water level. |
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manifestation |
|
CHARACTER |
|
Degree or nature of evidence when present within the context in point. |
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brittle |
= friable |
texture |
|
Dry, firm and easily broken. |
|
obcompressed |
< flattened |
solid shape |
|
Flattened adaxially and abaxially, parallel to the longitudinal axis, as though pressed or squeezed from the upper and lower surfaces, the external surface otherwise basically convex. Used alone, this term usually implies a strong degree of flattening; otherwise, it is often used in combination with some other term that describes the overall shape exclusive of ("before") flattening, e.g., obcompressed-lanceoloid. See also compressed (complanate), depressed. |
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cilium 2 pl. cilia |
|
STRUCTURE |
|
A motile hair- or whip-like structure extending from the surface of a cell. |
|
patelliform |
= kneecap-shaped |
solid shape |
|
Thickly meniscoid, like a human kneecap. |
|
costa pl. costae |
= rib; > midnerve (not recommended), midrib, midvein; >< lateral vein |
STRUCTURE |
|
A primary vein of a laminar structure, having a longitudinal course, either medial or lateral, often prominent. See also secondary vein, tertiary vein, veinlet. |
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dimidiate |
|
plane shape |
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Halved, figuratively; bilaterally asymmetric, nearly or wholly lacking one side as implicitly compared with some corresponding bilaterally symmetric structure, real or imagined. |
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reflectance |
|
CHARACTER |
|
Aspect as to proportion and pattern of incident light reflected from the surface. |
|
foliar |
|
position |
|
Upon or otherwise directly associated with the leaves. |
|
spermatozoid |
= antherozoid; < sperm |
STRUCTURE |
|
A motile male gamete, produced within an antheridium. |
|
half-terete |
= semiterete |
solid shape |
|
Terete but flattened on one side. |
|
inflorescence 1 |
|
architecture |
|
Mode or progressive pattern of bearing flowers; most appropriately described using adjectival terms. |
|
tetra… |
= four-…, quadr(i)… |
prefix |
|
Indicating presence of or constitution by four entities of the type denoted by the term's stem; as in tetrandrous, tetracarpellate, tetracolporate. See also individual entries for terms with this prefix whose meanings, at least in some applications, are more specific than usually indicated by such combination. |
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lenticular 2 |
= biconvex, lens-shaped |
solid shape |
|
Relatively thin with two round, convex, opposite broad faces intersecting acutely at the circumferential edge; like a double-convex lens. See also disciform (discoid), meniscoid. |
|
locule |
= cell (not recommended), chamber (not recommended) |
FEATURE |
|
Any structurally distinct compartment within an anther, ovary, fruit, sporangium or other organ; not necessarily having any evolutionary integrity. |
|
blotched |
= maculate, spotted |
coloration |
|
Having one or more areas that differ in color from the rest of the surface. See also eyespotted. |
|
nectary |
< gland |
STRUCTURE |
|
A multicellular, anatomically distinct structure that produces and exudes nectar. |
