indusium

Sori may be covered by a structure called an indusium.

I have just examined a large bud with the indusium not yet closed, and it seems to me certain that there is no stigma within.

Finally the style emerges from the indusium (590/3.

Some species have an indusium, a net-like structure that extends from the cap to the ground.

In some species, they are protected during development by a scale or film of tissue called the indusium, which forms an umbrella-like cover.

How curious that the indusium should first so cleverly collect pollen and then afterwards push it out!

The presence or absence of indusium is also used to identify fern taxa.

A white, lacy, skirt-like veil, or indusium, hangs below the cap.

The netlike openings of the indusium may be polygonal or round in shape.

The sori are round, with a circular indusium.

The characteristic feature of the flower in this order is the indusium, or, as Delpino (590/2.

P. indusiatus can be distinguished from other similar species by differences in distribution, size, color, and indusium length.

Sori are round and covered in a bladder-like indusium.

These sori are covered by a tan, kidney-shaped indusium.

They are covered by a prominently whitish to brown reniform (kidney-shaped) indusium.

The edges of the segments may curl back to cover the sporangia, forming a false indusium.

Indusium is absent.

The fertile leaves have sori scattered along the veins, each with a strongly enrolled false indusium.

The sori are borne in round clumps on the underside of the blade and lack an indusium.

The indusium is linear and persistent, and the sporangia are brownish.

Do you remember the scarlet Leschenaultia formosa with the sticky margin outside the indusium?

Indusium (1993)

The sori are usually rounded and are covered in an inflated bladder-like indusium.

As the sporongia mature, the indusium shrivels so that spore release is unimpeded.

Initially, indusium and scale morphology were used to organize the Cyatheaceae into taxonomic ranks.