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acrocaulous |
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insertion |
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At or very near the stem tip. |
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craspedodromous, simple- |
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venation |
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Having a midvein that branches to either side along the length of the lamina, the secondary veins and their branches all running toward and terminating at the margin. |
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texture |
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CHARACTER |
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Substantial properties. Overlaps conceptually with solid shape, as to thickness. |
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obcordate |
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plane shape |
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Inversely cordate (heart-shaped). |
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peripterous |
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solid shape |
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Alate with a single transversely encircling wing. |
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dot |
= punctum |
FEATURE |
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A small, generally round sector of distinct coloration or relief. |
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rib |
= costa; > midnerve (not recommended), midrib, midvein; >< lateral vein |
STRUCTURE |
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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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broom-shaped |
= muscariform, penicillate |
solid shape |
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Having a proximal axis that bears a distal cluster of elongate slender branches or appendages, these variously ascending to erect; like a broom. |
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foliar |
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position |
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Upon or otherwise directly associated with the leaves. |
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imbricate(d) 1 |
= overlapping |
aestivation |
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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. |
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microsporocarp |
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STRUCTURE |
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A sporocarp that bears only microsporangia. |
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saccate 2 |
= bag-shaped, pouch-shaped, sack-shaped |
solid shape |
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Irregularly obovoid with an exterior aspect intermediate between inflated and flaccid; like a closed pouch or bag. |
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columella 1 pl. columellae, columellas |
= carpophore; < stalk |
STRUCTURE |
|
Any pedestal-like prolongation of a floral receptacle extending beyond the distalmost level of perianth insertion and bearing the gynoecium. |
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elater 1 |
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STRUCTURE |
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An elongate cell with a helical, hygroscopic thickening in its wall, contained within a sporangium, expanding and contracting with changes in humidity and aiding dispersal of the spores; esp. in Hepaticae. |
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twice-… |
= bi…, double-… |
prefix |
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Indicating presence of two hierarchical orders of the type of entity or pattern denoted by the term's stem; as in twice-crenate, twice-palmate. See also two-… (bi…, di…). |
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lenticel |
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STRUCTURE |
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A specialized, anatomically distinct structure within the periderm of a stem, consisting of comparatively spongy, sometimes suberized tissue distinct from others of the periderm; extending radially through the periderm and visible as a circular to elongate discontinuity in the color, texture, and/or relief of the outer surface of the stem; serving as a conduit for gas exchange between the stem interior and the atmosphere. |
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scabrellous |
= scabrellate, scabridulous |
relief |
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Minutely scabrous (rough, scabrate, scabrid, scabridous). See also spiculate, which is not clearly distinct in its application. |
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corky |
= suberous |
texture |
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Firm, relatively light, discontinuous but strongly cohesive, and resilient. |
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basal cell |
|
STRUCTURE |
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Any of the ring of cells forming the lowermost (proximal) portion of an antheridial wall. |
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groove |
= colpus, fossula, furrow, sulcus, vallecula |
FEATURE |
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A longitudinal depression that is relatively shallow and narrow. |
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prickly |
|
architecture |
|
Bearing prickles. |
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discal |
|
insertion |
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Upon or otherwise directly associated with the floral disc. |
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many-… |
= multi…, pluri…, poly… |
prefix |
|
Indicating presence of or constitution by a relatively large number of entities of the type denoted by the term's stem; as in many-angled, many-pistilled, many-seeded. See also few-… (oligo…). |
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reniform 2 |
= kidney-shaped |
solid shape |
|
Thickly elongate and arcuate, circular or compressed-circular in transverse section, each end bluntly rounded; like the generalized shape of a human kidney. |
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boat-shaped |
= cymbiform, navicular |
solid shape |
|
Like the generalized form of a boat hull, the walls relatively thin to moderately thick, the interior essentially empty and open along one side. |
