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rostrum 1 pl. rostra |
= beak |
STRUCTURE |
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A relatively long, tapering, more or less rigid and pointed enation or termination. |
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setiform |
= bristle-shaped, setaceous |
solid shape |
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Elongate, slender, terete, straight, terminating in a fine point, and apparently stiff; like a bristle. |
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geniculate |
= kneed |
solid shape |
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Elongate, abruptly bent, somewhat thicker at the angle, and appearing as though articulate like a leg at the knee. |
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supple |
= flexible, pliable, pliant |
texture |
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Able to bend over its length and/or breadth without structural disruption. |
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knee root |
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STRUCTURE |
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A specialized secondary root of a wetland tree, a portion of which projects above mean water level and appears to bend as a leg does at the knee, its distalmost portion being anchored in the substrate beneath the water. The knee of the root is commonly regarded as a conduit for gas exchange between root interior and atmosphere, a function whose need is posited on the basis of the highly anaerobic and saturated conditions prevailing in wetland substrates. |
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triple-… |
= thrice-…, tri-… |
prefix |
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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-…. |
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triquetrous |
= three-angled, trigonous; > deltoid, obdeltoid |
solid shape |
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Elongate with three sides that meet at acute or obtuse angles. |
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viscid 1 |
< glutinous |
coating |
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Of a sticky substance. |
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axil |
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FEATURE |
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The space bounded by and near the vertex of the distal angle between a lateral structure, especially a leaf, and the axis that bears it. |
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mentum pl. menta |
= column foot |
STRUCTURE |
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A lateral, often nectariferous protrusion from the proximal portion of a column, opposite the labellum, projecting in front of the rest of the flower; in Orchidaceae. |
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callous |
= callose |
texture |
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Hard-leathery; callous tissue usually is also thicker than comparable adjacent tissue. |
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cloying |
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odor |
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Sickeningly sweet. |
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periclinal |
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orientation |
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Parallel to some given plane of reference; applied especially to the plane of cell division when it is oriented parallel to the generalized plane of the structural surface. |
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cross-vein |
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STRUCTURE |
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A relatively short, secondary or higher-order vein that runs directly between two veins of the next lower order, intersecting them more or less perpendicularly. |
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prophyll(um) pl. prophylls, prophylla |
= bracteole, bractlet; < bract |
STRUCTURE |
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A second- or higher-order bract within, and subtending some portion of, an aggregate branching structure, especially when subtending a flower. |
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divided |
? cleft, dissected, lobate, lobed, parted, partite, segmented |
plane shape |
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Having two or more component sectors or peripheral protrusions that are delimited by concavities in the surface or margin and that are not proximally distinct from the remainder of the whole. The meanings of this term and its approximate synonyms sometimes have been supposed to differ according to the depth of the delimiting concavities relative to the midline or midpoint of the overall structure, and/or to the shape or proportions of the protusions or sectors; however, there has been little consistency in the applications of the various terms according to such distinctions, which are ones only of degree and are necessarily arbitrary in any case. In general usage, these terms differ only indistinctly and connotatively: cleft, lobed (or lobate), parted (or partite) and segmented tend to connote fewer protrusions or sectors; lobate usually connotes as well a generally rounded shape; dissected tends to connote more numerous sectors that are elongate and angular. See also cut (incised, lacerate, torn), laciniate (slashed). |
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rhizome |
= rootstock |
STRUCTURE |
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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. |
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extrafloral |
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insertion |
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Outside and proximal to the flower; esp. nectaries. |
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spongy |
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texture |
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Soft, light, discontinuous but cohesive, and somewhat resilient. |
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subspheroid(al) |
= subglobose, suborbicular, subrotund, subspheric(al) |
solid shape |
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Broadly ellipsoid with a length:width ratio closely approaching 1:1; almost spheroid(al), slightly longer than broad. |
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…-toothed 2 |
= …dentate |
margin |
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Having the number of orders of teeth (dentes) indicated by the prefix, one upon another; as in twice-toothed. See also …-sawtoothed (…serrate), …-scalloped (…crenate). |
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lingulate |
= tongue-shaped |
solid shape |
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Broadly elongate and compressed, one broad face more or less plane and the other convex, the edges rounded between them; like a tongue. |
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veined |
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architecture |
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Having one or more orders of evident vasculature. |
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adventitious bud |
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STRUCTURE |
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A vegetative or floral bud that arises directly from a root or from some site on a shoot other than a leaf axil or stem apex. |
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articulate(d) |
= jointed |
architecture |
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Elongate with one or more distinct, relatively narrow zones of demarcation between adjacent main portions of the whole, these articulations (joints) often thicker and sometimes sites of eventual abscission. |
