distichous |
= two-ranked |
arrangement |
|
Disposed in two ranks along the axis, the ranks opposite one another. |
cochlear |
|
aestivation |
|
Imbricate with one member larger than and exterior to the others, parallel to one that is internal to all the others, strongly incurved, and enclosing the others. |
supervolute |
|
vernation |
|
Each with one side rolled adaxially inward from the margin and enveloped by the abaxially rolled opposite side. |
cochleate |
= snail-shell-shaped |
solid shape |
|
Relatively broad and short, basically round in transverse section, resembling a rapidly tapering spire overall, the exterior helically convoluted; like a snail shell. |
friable |
= brittle |
texture |
|
Dry, firm and easily broken. |
throat 2 |
|
STRUCTURE |
|
The fully connate portion of the limb of a disc floret, proximal to the lobes (distinct distal portions of the petals); in Asteraceae (Compositae). |
subapical |
= subterminal |
position |
|
Lateral and just below the apex. |
epipetalous |
|
insertion |
|
Upon the petals, or partially adnate thereto and apparently arising therefrom. |
tunic |
|
STRUCTURE |
|
A membranous covering outside the epidermis, especially around bulbs and corms, often becoming loose, sometimes scarious. |
mucilaginous 1 |
= mucous; < glutinous |
coating |
|
Of a slimy substance, or becoming so upon wetting. |
bract 1 (broad sense) |
> bracteole, bractlet, phyllary, prophyll(um); >< scale |
STRUCTURE |
|
Any lateral structure ontogenetically and anatomically analogous with, and therefore presumably homologous with, but relatively smaller than, a leaf, especially when subtending an inflorescence, other reproductive structure, or portion thereof; putatively, an evolutionarily reduced leaf. |
areola 1 pl. areolae |
= areole |
STRUCTURE |
|
Any distinctive surficial discontinuity of generally circular outline, whether concave, flush, or convex; when protuberant, sometimes bearing trichomes or spines, as in some Cactaceae. This term is used only when such entities are deemed structurally distinctive enough to merit description in their own rights, rather than as aspects of the surface. |
lineate 1 |
|
coloration |
|
Having very narrow, straight, clear or colored lines that contrast with the ground color. |
small-beaked |
= rostellate |
apex |
|
Diminutively beaked (rostrate). |
diffuse-porous |
|
porosity |
|
Homogeneously porous, the vessels not differentially disposed by size or number. |
seed coat |
= testa |
STRUCTURE |
|
The outer protective layer of a seed, developed from the ovular integument(s). |
oblong 1 |
|
plane shape |
|
Compressed-elliptic, the sides approximately parallel from near one end to near the other. See also elliptic(al) (oval). |
leftward |
= sinistrorse |
orientation |
|
Directed to the left, relative to the direction of growth along an explicit or implicit axis of reference. See also rightward (dextrorse). |
circumcaulous |
|
position |
|
Upon and surrounding the stem. |
round |
= orbiculate, orbicular misapplied |
plane shape |
|
Circular. |
floral tube |
= floral cup (broad sense), hypanthium (broad sense) |
STRUCTURE |
|
A complex structure comprising fused portions of the perianth and/or androecium of a flower, sometimes also including receptacular tissue; surrounding and wholly, partly, or not at all adnate to the gynoecium; subdivided morphologically into casing, collar and/or neck; sometimes bearing free distal portions of the constituent structures. |
tepal |
|
STRUCTURE |
|
Any member of an undifferentiated perianth; may be green and foliaceous or colored and petaloid, distinct or else connate with one or more others, and/or free or else adnate with one or more other floral structures. |
crumbling |
= fatiscent; > farinaceous, mealy |
texture |
|
Easily disintegrating in relatively small pieces, either spontaneously or under pressure. |
stoma 1 (broad sense) pl. stomata |
= stomatal apparatus, stomate |
STRUCTURE |
|
A localized functional epidermal unit consisting of a microscopic pore and two encircling specialized cells, the guard cells, which, through changes of turgor pressure in response to environmental conditions, regulate the size of the pore and thus the rates of transpiration and gas exchange through it; the whole surrounded or not by associated, cytologically distinctive epidermal cells, the subsidiary or accessory cells, which, when present, are regularly oriented in relation to it. |
plane shape |
|
CHARACTER |
|
Overall two-dimensional form or aspect(s) thereof. Overlaps conceptually with architecture, arrangement, habit, insertion, orientation, and position. |