ascidium

American  

[uh-sid-ee-uhm] / əˈsɪd i əm /

noun

Botany, Mycology.

• ascidia
  plural

1. a baglike or pitcherlike part.

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ascidium British  

/ əˈsɪdɪəm /

noun

1. part of a plant that is shaped like a pitcher, such as the modified leaf of the pitcher plant

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Other Word Forms

Noun Inflected Forms

• ascidia
  plural

Etymology

Origin of ascidium

1760–70; < New Latin < Greek askídion a small bag, equivalent to ask ( ós ) bag + -idion -idium

Example Sentences

See Examples For:

ascidium ascidia

Interrupted leaves, with an ascidium on a naked prolongation of the midvein, are by no means limited to the Croton varieties.

From Species and Varieties, Their Origin by Mutation by Hugo de Vries

It appeared from some transitional forms that the adventitious leaflet, just mentioned, was due to the exaggerated development of this gland, but no clue was afforded as to the origin of the ascidium.

From Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants by Maxwell T. Masters

They are narrower than those of the teasel, but this depends, as we have seen for the "one-leaved" ascidium, on the shape of the original leaf.

From Species and Varieties, Their Origin by Mutation by Hugo de Vries

This tube must bear at its summit the conical ascidium produced by the two connate limbs.

From Species and Varieties, Their Origin by Mutation by Hugo de Vries

The base of this apical limb exhibits two connate lobes, forming together a wide cup or ascidium.

From Species and Varieties, Their Origin by Mutation by Hugo de Vries

All in all, the tendency to produce ascidia increased from the beginning to the tenth leaf, and decreased from this upward.

From Species and Varieties, Their Origin by Mutation by Hugo de Vries

It is probable that both these forms have varieties with, and others without, ascidia.

From Species and Varieties, Their Origin by Mutation by Hugo de Vries

Proofs are afforded on one side by incomplete ascidia, and on the other by the double cups.

From Species and Varieties, Their Origin by Mutation by Hugo de Vries

The whole of the anterior or respiratory section of the gut is converted into a gill-crate, which is pierced trellis-wise by numbers of branchial-holes, as in the ascidia.

From The Evolution of Man — Volume 2 by Ernst Heinrich Philipp August Haeckel

We have already mentioned these cups, and recall them in the present connection to use them as a prototype of the double ascidia.

From Species and Varieties, Their Origin by Mutation by Hugo de Vries