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adventitious |
|
derivation |
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Arising more or less unpredictably from an organ, tissue, or site that is an unusual, abnormal, or atypical origin for structures of its type. |
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oblanceoloid |
= oblanciform |
solid shape |
|
Inversely lanceoloid (lancehead-shaped, lanciform). |
|
…stichous |
= …ranked |
arrangement |
|
Disposed along the axis in the number of distinct ranks indicated by the prefix; as in distichous, polystichous, tristichous. |
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disc 1 var. disk |
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STRUCTURE |
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Any distinct, annular to discoid structure produced from or borne upon a floral receptacle between or basal to any of the sets of floral organs; usually fleshy, often nectariferous. |
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disc 2 var. disk |
|
STRUCTURE |
|
Collectively, the disc florets of a capitulum (head), or the surface presented by them. |
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…pterous |
= …winged |
architecture |
|
Having the number of alae (wings) indicated by the prefix; as in dipterous, polypterous, tetrapterous. |
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compact |
= congested, crowded |
architecture |
|
Having equivalent constituent parts disposed very near to one another. |
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tree-like |
= dendritic |
architecture |
|
Like the branched axial structure of a tree. |
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medial |
= central, median |
position |
|
At, upon, or closely ranged about the structural or symmetrical midpoint or axis. |
|
flagelliform |
= whip-like |
solid shape |
|
Very slender, terete, generally straight, and apparently supple. |
|
secondary root |
|
STRUCTURE |
|
Any root branch that originates directly or indirectly from a primary root. |
|
pannose |
< felted |
pubescence |
|
Bearing closely intertwined, capillate trichomes that form a dense, felt-like mat. See also panniform. |
|
infructescence 1 |
|
STRUCTURE |
|
A mature (fruiting) inflorescence (static sense). |
|
ensiform |
= sword-shaped |
solid shape |
|
Elongate and moderately slender, strongly compressed, the opposite faces plane, parallel, broadest at the base and gradually attenuate to a short, more strongly attenuate, acute apex; like a broadsword blade. |
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acerose |
= acicular, needle-shaped |
solid shape |
|
Rounded in cross-section and very slenderly elongate, broadest near the middle, and gradually attenuate to an acute apex and a slightly blunter base; like a needle. |
|
arching |
= recurved |
orientation |
|
Curving backward or downward. |
|
small-beaked |
= rostellate |
apex |
|
Diminutively beaked (rostrate). |
|
pinna pl. pinnae |
< leaflet |
STRUCTURE |
|
One of the first-order divisions or leaflets of a pinnate frond; in Polypodiophyta. See also pinnule. |
|
lateral |
|
insertion |
|
To, toward, at, or upon a side, not apical or basal. |
|
club-shaped |
= clavate |
solid shape |
|
Elongate and basically round in transverse section, the diameter greatest at or near a blunt apex, thence attenuate toward the base, the degree of taper greatest between the middle and the upper quarter. |
|
scabrous 2 |
= rough, scabrate, scabrid, scabridous |
relief |
|
Having small, stout, stiff, more or less acute protrusions. |
|
overlapping 1 |
= imbricate(d) |
aestivation |
|
Having members whorled or spirally inserted and overlapping one another, each overlapping or overlapped to either side, and also above or below if spirally arranged or in multiple whorls. |
|
beaklet 1 |
= rostellum |
STRUCTURE |
|
A small beak or rostrum. |
|
impressed |
< sunken |
prominence |
|
Shallowly sunken. |
|
calyculus 2 pl. calyculi |
|
STRUCTURE |
|
Collectively the bractlets (bracteoles) sometimes subtending (beneath or outside) the involucre in a capitulum (head); in Asteraceae (Compositae). |
