|
planoconvex |
|
solid shape |
|
Relatively thin with opposite broad faces, one plane and one convex. |
|
anisophyllous |
|
architecture |
plant, axis |
Heterophyllous and bearing leaves of two or more distinct sizes or shapes on the same plants. |
|
xerocleistogamous |
|
reproduction |
flower |
Normally chasmogamous but facultatively cleistogamous during drier than normal periods. |
|
floret |
|
STRUCTURE |
|
A very small, structurally specialized flower, especially when occurring in capitulum (head; Asteraceae), or in a spikelet (Poaceae), where it includes the immediately subtending bracts (lemma and palea). |
|
pterocaulous |
|
architecture |
plant |
Having alate (winged) stems. |
|
barbed 2 |
|
solid shape |
|
Having one or more relatively short, stiff, acutely inserted or bent, antrorse or retrorse, terminal and/or lateral hook-like appendages; esp. awns or setae. |
|
weak |
|
texture |
|
Very pliable and unresilient. |
|
prominence |
|
CHARACTER |
|
Elevation or depression of a discrete feature relative to the surrounding surface. |
|
arillate |
|
architecture |
seed |
Having an aril. |
|
rounded |
|
apex |
|
Convex overall and more or less regularly curved. |
|
rounded |
|
base |
|
Convex overall and more or less regularly curved. |
|
hypogynous |
|
insertion |
perianth, calyx, corolla, androecium |
Entirely free from the gynoecium or any floral cup, arising from a level proximal or lateral to the base of the gynoecium. See also epigynous, perigynous. |
|
homosporous |
|
reproduction |
taxon |
Producing only one type of spore, each spore giving rise to a gametophyte that bears gametangia of both sexual types. |
|
accessory cell |
|
STRUCTURE |
|
One of the cytologically distinctive epidermal cells that are sometimes present in a stomate and that surround and are regularly oriented in relation to the guard cells. |
|
interrupted 1 |
|
architecture |
foliaceous structure |
Compound with the leaflets alternately large and small. |
|
inflated |
|
solid shape |
|
Relatively thin-walled with an essentially empty interior largely enclosed by the walls, which are convex overall and appear taut, as though from internal pressure. See also swollen (turgid, tumid), which is not clearly distinct in its application. |
|
lamella pl. lamellae |
|
STRUCTURE |
|
A thin layer of tissue that forms a plate within tissue of lesser density or between areas of empty space. |
|
adenopetalous 1 |
|
architecture |
flower, perianth, corolla |
Having petals produced from glandular structures. |
|
spadix pl. spadices |
|
STRUCTURE |
|
A thick, fleshy, primary inflorescence axis bearing sessile flowers more or less sunken into its surface, the whole subtended and sometimes partially enclosed by a specialized bract, the spathe; esp. in Araceae. |
|
ligule 2 |
|
STRUCTURE |
|
An adaxial, distal enation from a leaf sheath, especially in most grasses (Poaceae) and sedges (Cyperaceae); usually unitary and membranous, sometimes instead consisting of a row of ciliate processes. See also hastula. |
|
mamma pl. mammae |
|
STRUCTURE |
|
A rounded-conoidal protrusion, resembling the breast of a mammal. |
|
loculicidal |
|
dehiscence |
fruit |
Splitting longitudinally through the outer wall(s) and directly into the locule(s), between the sutures, if any. |
|
monochasium pl. monochasia |
|
nominative |
inflorescence |
Determinate and falsely dichotomous with each axial segment bearing a single, sessile terminal flower; presumably derived from a dichasium by loss of the lateral flowers. See also cincinnus, cyme, cymule, dichasium, helicoid cyme, scorpioid cyme. |
|
suprafoliar |
|
position |
|
Upon the stems, each directly above (distal to) and very near a point of leaf insertion. |
|
decompound |
|
architecture |
|
Comprising two or more orders of equivalent substructural entities; multiply compound. |
