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ascidium

American  
[uh-sid-ee-uhm] / əˈsɪd i əm /

noun

Botany, Mycology.
  • ascidia
    plural
  1. a baglike or pitcherlike part.


ascidium British  
/ əˈsɪdɪəm /

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of ascidium

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

By this contrivance the double ascidium assumes a terminal position.

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

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 Masters, Maxwell T.

I have alluded to these cases more than once, but on this occasion a closer inspection of the structure of the ascidium is required.

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

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 Vries, Hugo de

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 Vries, Hugo de

So it is also with the double ascidia.

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

Besides the above varieties of ascidia formed from the union of one or more leaves, there are others which seem to be the result of a peculiar excrescence or hypertrophy of the leaf.

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

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 Vries, Hugo de

It had produced seven ascidia in all, each formed by the conversion of one leaflet on the trifoliolate leaves.

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

In other instances the peltate leaves become more or less hollow, constituting broad ascidia as in the case of the crassulaceous genus Umbilicus.

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

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