|
megasporophyll |
= macrosporophyll (not recommended); > carpel, cone scale, ovuliferous scale |
STRUCTURE |
|
A sporophyll that bears only megasporangia and, in Pinophyta, naked ovules that develop subsequently. |
|
obtrullate |
= obtrulliform |
plane shape |
|
Inversely trullate (trowel-shaped, trulliform). |
|
crisped |
= crispate, curly |
margin |
|
Having closely and irregularly spaced, irregularly shaped, often compound convexities that curve irregularly through three dimensions. |
|
distant |
= remote |
arrangement |
|
Disposed relatively far from one another along the axis. |
|
rhachilla |
|
STRUCTURE |
|
See rachilla. |
|
segmented |
? cleft, dissected, divided, lobed, lobate, parted, partite |
solid shape |
|
Having two or more major 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). |
|
frond |
< leaf, macrophyll (not recommended), megaphyll |
STRUCTURE |
|
A leaf in Polypodiophyta or Palmae (Arecaceae), usually relatively large and often highly dissected. Use of this term in preference to "leaf" in descriptions of ferns and palms is a matter of tradition only, not of morphological or evolutionary distinction. |
|
spiral 1 |
= acyclic, helical |
arrangement |
|
Disposed helically about and along the axis, each on a different radius than the one(s) vertically adjacent. |
|
helical 1 |
= acyclic, spiral |
arrangement |
|
Disposed helically about and along the axis, each on a different radius than the one(s) vertically adjacent. |
|
subround |
= subcircular; suborbicular misapplied, subrotund misapplied |
plane shape |
|
Compressed circular or very broadly elliptic, only slightly longer than wide. |
|
interpetiolar |
< nodal |
position |
|
Upon the stem between the bases of opposite leaves. |
|
tomentose |
|
pubescence |
|
Bearing dense, short, stiff, capillate trichomes. See also tomentulose. |
|
vascular |
|
insertion |
|
Upon or otherwise directly associated with the vasculature. |
|
aristate 1 |
= awned, bristled |
apex |
|
Bearing one or more aristae (awns, bristles, setae). |
|
main stem |
= primary stem; > bole, trunk |
STRUCTURE |
|
The one, or any of the more than one, first-order stem(s), or first-order portion(s) of the collective stem, of a shoot. |
|
branchlet |
|
STRUCTURE |
|
A branch of the highest or ultimate order. |
|
notch |
= emargination |
FEATURE |
|
A relatively small, acute sinus at the distal end of a laminar structure. |
|
checkered 1 |
= tessellate |
coloration |
|
Having a pattern of more or less regularly disposed square zones of contrasting hues and/or intensities. |
|
…parted |
? …cleft, …fid, …lobate, …lobed, …partite, …segmented |
plane shape |
|
Having the number of lobes, divisions or segments indicated by the prefix; as in five-parted. |
|
coroniform |
= crown-shaped |
solid shape |
|
Shortly and broadly tubular overall, circumferentially continuous at the base, distally so or not; like a monarch's crown. |
|
corrugate 1 |
= crumpled |
aestivation |
|
Having members tightly and irregularly folded, the whole appearing as though wadded upon emergence. |
|
diffuse root |
> fibrous root |
STRUCTURE |
|
Any member of a dense system of adventitious, slender roots that arise from the base of a main stem and functionally replace an evanescent primary root. |
|
receptacular |
|
position |
|
Upon, arising from, or otherwise directly associated with the receptacle. |
|
flower |
|
STRUCTURE |
|
A functionally integrated, complex structure comprising sets of sporophytic and/or associated sterile structures disposed in standard sequence along a common axis; consisting of one or more constituent members each of, in ascending (proximal to distal) order of insertion, perianth (tepals, or else sepals and/or petals), androecium (stamens, staminodes and/or other associated structures), and/or gynoecium (pistils and/or other associated structures), the foregoing all borne laterally from the distal portion (receptacle) of the axis; depending upon the combination of structures present, may be bisexual, staminate only, pistillate only, or sterile; characteristic of and unique to the Magnoliophyta (Angiospermae). When a fertile androecium and gynoecium are both present a flower is termed perfect. When perfect and also with calyx and corolla both present, a flower is termed complete. Both terms are somewhat archaic and of limited descriptive value. |
|
haft |
|
STRUCTURE |
|
The narrow portion of a structure that is notably constricted. |
