The stems grow, moreover, exactly at right angles to the solid surface element to which the stolon is attached.
The writer found that if we cut a piece from a stolon and suspend it in an aquarium it forms as a rule a polyp at either end (Fig.
Its stolons attach themselves to solid bodies, and the stems appear on the side of the stolon exactly opposite the point or area of contact with the solid body.
A piece of Tubularia when cut out from a stem and suspended in water will regenerate at the aboral pole not a stolon but a polyp, so that we have an animal terminating at both ends of its body in a head.
This undifferentiated material formed from the polyp may afterward flow out again, giving rise to a stolon or a polyp; to the former where it comes in contact with a solid body, to the latter where it is surrounded by sea water.
The solitary salp produces in its interior a little stolonor diverticulum which contains an outgrowth from the circulatory system, and this stolon gradually becomes pinched off into the members of the chain of the aggregate form.
The first thing I saw on the Marylebone platform was the crude picture in green chalk of a stolon of Cynodon dactylon.
This much anyway," he added, holding a brokenstolon in his fingers.
The Home Minister replied that Britons never would permit a stolon of the Grass to grow on English soil and therefore such fantastic ideas were superfluous.
Fragaria: circumnutation of the same stolon as in the last figure, observed in the same manner, and traced from 8 A.
The same stolon was observed on the following day, and now it moved in a somewhat less complex manner, in a plane not far from vertical.
On the following day (26th) the stolon moved twice up and twice down, but still continued to fall; in the evening and during the night it travelled from some unknown cause in an oblique direction.
During neither of these days did the stolon bend downwards through geotropism or its own weight.
A younger and shorter stolon was supported so that it projected at about 45o above the horizon, and its movement was traced by the same orthogonal method.
On the following morning (19th) the glass filament was detached and refixed close behind the bud, as it appeared possible that the circumnutation of the terminal bud and of the adjoining part of the stolon might be different.
Nevertheless, by comparing its position on the morning of the 19th and 21st, it is obvious that the stolon had sunk; and this may be attributed to slow bending down either from its own weight or from geotropism.
This stolon was rendered permanently sinuous to a slight degree, and was thicker where sinuous than elsewhere, apparently from its longitudinal growth having been checked.
The stolon, however, did not circumnutate when it first began to bend down, as may be observed in the present diagram, and as was still more evident in the last case, when a longer portion of the stolon was left unsupported.
As thisstolon was so long we thought that its growth was nearly completed, so we tried another which was thicker and shorter, viz.
During a part of the 20th an orthogonal tracing was made by applying a cube of wood to the vertical glass and bringing the apex of the stolon at successive periods into a line with one edge; a dot being made each time on the glass.
These buds are almost exactly similar to the original sexual form; they do not acquire sexual organs, but are provided with a stolon attached on the ventral side, in the sixth intermuscular space.
While still in the embryonic condition, a stolon grows out from its dorsal side in the seventh intermuscular space.
This stolon is simply the stalk by which each median bud was primitively attached to the stolon of the first asexual form.
The stalks attaching the more mature buds to the stolon are provided with ventrally directed scales, which completely hide the stolon in a view from the ventral surface.
From the stolon of the median buds of the second generation buds are developed which grow into the sexual forms.
This stolon is divided into a series of lateral buds after the solitary asexual Salp has begun to lead an independent existence.
The median dorsal buds have no such regular arrangement as the lateral buds, but arise in irregular bunches, those furthest removed from the base of the stolon being however the oldest.
The stolon arises as a projection on the right side of the body of the embryo close to the heart.
The stolon containing the organs just enumerated becomes divided by transverse constrictions into a number of rings.
Although the stolon arises while the asexual Salp is still in an embryonic condition, it does not become fully developed till long after the asexual Salp has attained maturity.
My description of the embryonic development of Salpa would not be complete without some reference to the development of the stolon of the Solitary generation of Salps by the segmentation of which a chain of sexual Salps originates.
Besides the proliferating stolon situated on the ventral side, the bud-producing individual possesses a dorsal process larger than the stolon proper.
The buds become completely severed from the true stolon at an early stage and actually crawl along the side of the parent up to the dorsal process, upon which they arrange themselves in three rows, two lateral and one median.
From the stolon the daughter-polyps grow up vertically.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "stolon" in a variety of sentences. We hope that you will now be able to make sentences using this word.
