-
called an involucel. In this case they may be
called chaff, paleas, or
receptacular bracts and are
usually minute scales or bristles. Many
asteraceous plants...
-
process of
grinding coffee beans. In botany,
chaff refers to the thin
receptacular bracts of many
species in the
sunflower family Asteraceae and related...
- genera). Each
floret may be
subtended by a bract,
called a "palea" or "
receptacular bract".
These bracts are
often called "chaff". The
presence or absence...
- structure. The
different types of
floral nectaries include:
receptacle (
receptacular: extrastaminal, intrastaminal, interstaminal)
hypanthium (hypanthial)...
- that the
species have 4-5
sepals and petals,
hermaphroditic flowers,
receptacular disk
glands (=nectaries), and
outer filamentous staminodes. It is one...
-
inner phyllaries smaller and less spinescent-ciliate.
Margins of the
receptacular alveolae extended into straw-coloured
bristles 1–2 mm. long. Achenes...
-
These species share the
common traits of
thick base
tepals (>2mm), wide
receptacular tubes, and dark
coloring of the
flower throat. Some
molecular evidence...
- funnel-shaped or tubular,
sometimes zygomorphic and
rarely wheel-shaped,
receptacular tube curved,
embraced by
foliaceous scales or 1–few
bristles 3–5 mm long...
-
oblong or obovate, and are 2.4 to 3.6 mm long and 0.8 to 1.1 mm wide. The
receptacular bracts are
linear to lanceolate, and are 3 to 4 mm long and 0.1 to 0...
-
Photo of
Balduina uniflora showing characteristic honeycomb-like
clusters of disc flowers, each
surrounded by
receptacular bracts....
