fusion |
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CHARACTER |
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Physical connection of equivalent or dissimilar structural entities (as recognized on evolutionary, morphological, anatomical, ontogenetic, and/or topological grounds). Terms that denote the interconnection of equivalent structures are predicated on a single collective subject and suffice in themselves to describe the condition; e.g., "sepals connate." However, those that denote the connection of dissimilar structures require explicit notation of each type of structure involved, in either a compound-subject construction or else a single-subject/object-of-preposition construction; e.g., "stamens and corolla adnate" or "stamens adnate to corolla." Qualifying detail is sometimes appropriate; e.g., "filaments connate basally," "filaments adnate to the petals over their lower halves." |
single-… |
= mono…, one-…, uni… |
prefix |
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Indicating presence of or constitution by one entity of the type denoted by the term's stem; as in single-celled, single-headed, single-seeded. See also entries for particular terms with this prefix whose meanings, at least in some applications, are more specific than usually indicated by such combination. |
carinal |
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aestivation |
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Having the petals of the keel (carina) enclosing the others. |
laminar 2 |
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solid shape |
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Relatively very thin with parallel opposite broad faces, the whole plane or variously curved. Structures to which this term, along with any other three-dimensional ones, is applicable are often also described as though only two-dimensional, using terms that are implicitly understood to refer only to the outline of the broad faces. |
thallus 2 pl. thalli |
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STRUCTURE |
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The main body of a gametophyte, bearing rhizoids, gametangia (antheridia and/or archegonia), and/or gemmae cups; usually thin and more or less planate, inconspicuous, and growing appressed to or beneath the substrate surface; in Psilotophyta, Lycopodiophyta, Equisetophyta, Polypodiophyta. See also prothallus. |
fascicled 2 |
= bundled (not recommended), fasciculate |
arrangement |
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Disposed in one or more fascicles, the members of each inserted close together and only slightly if at all divergent from one another. |
crispate |
= crisped, curly |
margin |
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Having closely and irregularly spaced, irregularly shaped, often compound convexities that curve irregularly through three dimensions. |
wingless 1 |
= exalate |
architecture |
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Lacking elongate, relatively thin protrusions or appendages that resemble wings. |
opposite 1 |
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arrangement |
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Disposed in pairs along the axis, the members of each pair inserted at the same level across from one another. |
squamule 1 |
= squamella; < scale |
STRUCTURE |
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A diminutive squama (lepis). |
primary axis |
> ray |
STRUCTURE |
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A main or first-order axis within any specified, uniformly delimited structural context. |
blunt 2 |
= obtuse |
base |
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Bluntly angular; having an angular proximal portion whose generalized sides intersect at an angle of 90° or more. |
clinandrium pl. clinandria |
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FEATURE |
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The cavity in a floral column (gynostemium) within which the anthers are borne. |
loose 2 |
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texture |
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Soft overall, discontinuously and only weakly cohesive. |
four-… |
= quadr(i)…, tetra… |
prefix |
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Indicating presence of or constitution by four entities of the type denoted by the term's stem; as in four-angled, four-petaled, four-ranked. |
seta 2 pl. setae |
= bristle; > glochid, glochidium |
STRUCTURE |
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A trichome that is elongate, slender, more or less straight, terete, fine-pointed, and stiff. |
kidney-shaped 2 |
= reniform |
solid shape |
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Thickly elongate and arcuate, circular or compressed-circular in transverse section, each end bluntly rounded; like the generalized shape of a human kidney. |
coronal |
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position |
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Upon or otherwise directly associated with the corona. |
mucilage |
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substance |
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A slimy exudate. |
grumous |
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solid shape |
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Having an external aspect like a cluster of grains, basically convex overall. |
spiny 1 |
= echinate, spinose |
architecture |
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Bearing spines. |
arcuate 2 |
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plane shape |
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Elongate and more or less regularly curved from one end to the other, one side convex, the opposite concave. |
polished |
= glossy, laevigate, lustrous, shining, shiny |
reflectance |
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Uniformly reflecting a high proportion of incident light at all angles. |
teardrop-shaped 1 |
= lacrimate |
plane shape |
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Broadest just below the middle, broadly rounded to the base, and acutely attenuate to the apex; like the stylized lateral outline of a teardrop. |
limb 1 |
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STRUCTURE |
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A relatively broad portion of a syntepalous (gamotepalous) perianth, synsepalous (gamosepalous) calyx, or sympetalous (gamopetalous) corolla distal to a narrower tube, spreading outward or ascending from the tube, comprising the distinct or connate distal portions of the tepals, sepals, or petals; except in bisexual or staminate disc florets of Asteraceae (Compositae). |