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6 x 1 cm, pink to red with yellow fauces, tubular to infundibuliform, pubescent; stamens exserted, dorsal filaments ca.
crassiclava Nixon --F5 not strongly transverse, just a little wider than long 3 3 Head with frontal horns; F4 strongly transverse, much wider than long; ovipositor notably exserted beyond apex of gaster T.
5 cm long, glabrous, anther tube obconic, 4-5 mm long and 4 mm in distal diameter, exserted 10-15 mm between the corolla dorsal lobes, dorsal and lateral anthers 4-5 mm long, the two ventral anthers 3-4 mm long, glabrous; stigma bilobed, discoidal during post-anthesis and exserted 3-4 mm from the anther tube.
The species appears highly distinctive especially for the very large anthers that are prominently exserted at anthesis.
Ovipositor occupying almost entire length of gaster, slightly exserted beyond gastral apex; ovipositor length:metatibia length ratio 2.
Beginning Shed (Beg Shed) is recorded as the proportion of plants that have anthers exserted on the main tassel branch.
Unique Characteristics: Foliage is commercially sold but most often contains some red flowers, inflorescence of long, exserted stamens resembles a bottlebrush.
The corolla of unopened flowers is pink, and flower maturation occurs in the following sequence: the stigma is exserted from the unopened corolla [ILLUSTRATION FOR FIGURE 1A OMITTED], the anthers dehisce, and the corolla undergoes a color change from pink to blue as it opens.
Using fluorescent dye powders to track pollen movement in natural populations, we have found that plants with highly exserted stigmas (extending beyond the opening of the corolla tube) receive more out-cross pollen per flower during their lifetime than those with inserted stigmas.
Columnea chocoensis differs from any other known Columnea by having a long, dorsally recurved tubular corolla with a narrow bilabiate limb, and exserted stamens and style.
A thick, conical, striated protrusion, the exserted portion of the maturing fruit, emerges from mid-level of the floral tube tapering distally to form a neck which is not sunken as it is in Trapa (Miki, 1952a: fig.
Synflorescence a false panicle made by 2-5 digitate racemes per peduncle, well exserted from the spathe.
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