|
midrib |
= midnerve, midvein; < costa, nerve, rib, vein |
STRUCTURE |
|
A primary vein that runs longitudinally through the center of a leaf or other basically laminar structure. See also lateral vein, secondary vein, tertiary vein, veinlet. |
|
runner |
= stolon |
STRUCTURE |
|
A slender stem that grows horizontally upon or just beneath the ground surface, rooting at the nodes and giving rise to erect shoot segments at some nodes and/or at its apex. |
|
epicarp |
= exocarp |
STRUCTURE |
|
The outermost tissue layer of a pericarp. |
|
vexillum pl. vexilla |
= banner, standard |
STRUCTURE |
|
The relatively large, erect adaxial (upper) petal in a papilionaceous corolla. |
|
elater 1 |
|
STRUCTURE |
|
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. |
|
fibrous root |
< diffuse root |
STRUCTURE |
|
A diffuse root that includes a significant component of woody or sclerotic strands and is consequently tough and often wiry. |
|
valve |
|
STRUCTURE |
|
Any longitudinal segment of a fruit wall delimited by lines of dehiscence. |
|
macrosporocarp (not recommended) |
= megasporocarp |
STRUCTURE |
|
A sporocarp that bears only macrosporangia (megasporangia). |
|
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). |
|
dropper |
= tuberoid |
STRUCTURE |
|
An axial outgrowth that descends from a bulb and eventually forms a new bulb; esp. in Orchidaceae. |
|
ovary |
|
STRUCTURE |
|
The proximal portion of a pistil (either simple or compound) within which the ovules are borne; usually of somewhat greater diameter and/or volume than the remainder of the pistil. |
|
hair |
= capillus; > glochid, glochidium; < cilium, trichome |
STRUCTURE |
|
A hair-like trichome. |
|
bladder |
= ampulla |
STRUCTURE |
|
A small, membranous, hollow, flask-shaped, insectivorous structure borne on a submerged leaf; esp. in Lentibulariaceae. |
|
lip cell |
|
STRUCTURE |
|
Either of a pair of adjacent, narrow, transversely oriented, thick-walled cells bordering the pore (stomium) of a sporangium. |
|
pericarp |
|
STRUCTURE |
|
The portion of a fruit wall that is derived from the ovary wall; consisting of three more or less distinct tissue layers (exocarp or epicarp, mesocarp, and endocarp) that may or may not differ greatly in structure and/or function; the wall of a fruit, excluding any tissues of extra-ovarian (accessory) origin. |
|
capillus pl. capilli |
= hair; > glochid, glochidium; < cilium, trichome |
STRUCTURE |
|
A hair-like trichome. |
|
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. |
|
ray 1 |
< primary axis |
STRUCTURE |
|
A first-order axis within a compound umbel. |
|
disk |
|
STRUCTURE |
|
See disc. |
|
midvein |
= midnerve, midrib; < costa, nerve, rib, vein |
STRUCTURE |
|
A primary vein that runs longitudinally through the center of a leaf or other basically laminar structure. See also lateral vein, secondary vein, tertiary vein, veinlet. |
|
sporangiophore |
< stalk |
STRUCTURE |
|
A stalk that bears one or more sporangia. |
|
wing 1 |
= ala |
STRUCTURE |
|
Any elongate, relatively thin protrusion or appendage. |
|
epichilium |
|
STRUCTURE |
|
The distal portion of a labellum (lip) that has distinct proximal, distal, and sometimes also central parts; in Orchidaceae. See also hypochilium, mesochilium. |
|
sepal |
|
STRUCTURE |
|
One of the one or more constituent members of a calyx; usually green and leaf-like, but sometimes with color and/or texture otherwise, sometimes petaloid; may be distinct or else connate with one or more others and/or may be free or else adnate to one or more other floral structures. |
|
turion |
< sucker |
STRUCTURE |
|
A scaly sucker. |
