|
internodal |
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position |
|
Upon or otherwise directly associated with the internodes. |
|
sawtooth |
|
STRUCTURE |
|
One of a series of regularly spaced, angular, marginal convexities oriented at an acute angle to the generalized perimeter of a laminar structure. See also sawtoothlet, scallop (crena), scalloplet (crenule), tooth, toothlet. |
|
indusiate |
|
architecture |
sorus |
Having an indusium. |
|
laesura pl. laesurae |
|
FEATURE |
|
An elongate aperture in the proximal face of a spore at or near its pole, coterminous with a tetrad scar; in Psilotophyta, Lycopodiophyta, Equisetophyta, Polypodiophyta. Depending upon tetrad configuration and resultant scar pattern, a laesura may be either unbranched or branched, the branches when present (usually 3) radiating from the pole and of approximately equal lengths. |
|
solid shape |
|
CHARACTER |
|
Overall three-dimensional form or aspect(s) thereof. Overlaps conceptually with architecture, arrangement, habit, insertion, orientation, position, relief, and texture (as to thickness). |
|
simple 2 |
|
architecture |
trichome |
Unicellular and unbranched. |
|
connate-perfoliate |
|
architecture |
opposite laminar structures |
Having the bases in each pair fused and together encircling the bearing axis. See also amplexicaulous, perfoliate. |
|
spinulose |
|
apex |
|
Finely spinose. |
|
location |
|
CHARACTER |
|
Position with respect to aspects of environmental context. |
|
coronal |
|
insertion |
|
Upon or otherwise directly associated with the corona. |
|
coronal |
|
position |
|
Upon or otherwise directly associated with the corona. |
|
deciduous 2 |
|
habit |
plant |
Perennial and having all leaves separating and falling away during a particular portion of the yearly cycle, especially the autumn or the dry season, between growing seasons. Semantically, this term is properly applied only to the entity that falls, not to the structure that it separates and falls from; in traditional usage, though, the term has been applied to trees and other perennial plants that shed all their leaves at some time during the yearly cycle. |
|
oblate |
|
solid shape |
|
Symmetrically elongate and broader than long perpendicular to the developmental or polar axis. |
|
campylotropous |
|
orientation |
ovule |
Having the (reniform) ovule curved toward the ovary wall, the micropyle facing the wall, and the funiculus attached near the center of the concave side, the curvature and displacement of funicular insertion due to asymmetrical growth during ontogenesis. |
|
node |
|
STRUCTURE |
|
One of the evident sectors of a stem that occur sequentially along its length and from which leaves (megaphylls) and lateral branches arise exogenously. The anatomy of nodes differs from, but is not abruptly distinct longitudinally from, that of the intervening sectors (internodes), with which it is smoothly confluent and from which is distinguished by the lateral transit and egress of vascular traces interconnecting the stem and the leaves and branches that it bears. |
|
disc 2 var. disk |
|
STRUCTURE |
|
Collectively, the disc florets of a capitulum (head), or the surface presented by them. |
|
bundle scar |
|
FEATURE |
|
A smaller scar within the bounds of a leaf scar at the point where a vascular bundle traversed the abscission layer between stem and leaf. |
|
synstemonous |
|
architecture |
flower, androecium |
Having two or more stamens, some or all of them connate. |
|
endophytic |
|
habit |
|
Growing within some portion of another, unrelated, living plant. |
|
trichotomocolpate |
|
architecture |
pollen grain |
Having a triradiate surficial groove (colpus). |
|
explosive |
|
dehiscence |
|
Opening abruptly with almost instantaneous aperture formation and release of accumulated structural tensions, the contents thus forcibly expelled. |
|
antheridium pl. antheridia |
|
STRUCTURE |
|
A male gametangium; a multicellular fertile organ of a mature gametophyte within which male gametes (antherozoids, spermatozoids) are produced and from which they are discharged, in some taxa forcibly, through a pore. Technically present but highly reduced and of no descriptive significance in Magnoliophyta and part of Pinophyta. |
|
coalescent |
|
fusion |
equivalent and/or dissimilar structures |
Partially and irregularly coherent and/or adherent. |
|
episepalous |
|
position |
|
Upon the sepals, or partially adnate thereto and apparently arising therefrom. |
|
piliferous |
|
apex |
|
Having a distinct, fine, weak, hair-like portion or protrusion. |
