indusium

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Related to indusia: prothallus

in·du·si·um

, pl.

in·du·si·a

(in-dū'zē-ŭm, -zē-ă),
1. A membranous layer or covering.
2. The amnion.
[L. a woman's undergarment, fr. induo, to put on]
Farlex Partner Medical Dictionary © Farlex 2012

indusium

(ĭn-do͞o′zē-əm, -zhē-, -dyo͞o′-)
n. pl. indu·sia (-zē-ə, -zhē-ə)
An enclosing membrane, as that covering the sorus of a fern.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

in·du·si·um

, pl. indusia (in-dū'zē-ŭm, -zē-ă)
1. A membranous layer or covering.
2. The amnion.
[L. a woman's undergarment, fr. induo, to put on]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

indusium

the covering of a sporangium or several sporangia.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Leaves pinnate-pinnatifid; indusia absent or diameter [less than] 0.3 mm 2
Rhizomes short, thick; fronds 5-40 cm long, monomorphic; rachis brown to black; blades pinnate, oblong; sori elongate, medical to sub-marginal; indusia laterally attached.
Indusia completely surrounding receptacle; petiole with 2 vascular bundles.
Sori not marginal; indusia thin and flat; leaves green and not leathery;plant of low, swampy woods and seepage slopesD.
Leaflets ("leaves") palmately lobed and fan-shaped; sterile tissue between indusia on fertile lobes nearly absent: L.
Sori located along margins of leaflets, either covered by rolled under (revolute) leaflet edge or in cup-like indusia.
Sori in cup-like indusia and not covered by edge of leaflets; leaf blades and rachises bearing gland-tipped whitish hairs (with a hay-like fragrance); rhizome hairy Dennstaedtiaceae (Dennstaedtia)