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  • WordNet 3.6
    • adj involucrate having an involucre
    • ***
Webster's Revised Unabridged Dictionary
    • a Involucrate (Bot) Having an involucre; involucred.
    • ***
Century Dictionary and Cyclopedia
    • involucrate Having an involucre.
    • ***
Chambers's Twentieth Century Dictionary
    • adjs Involucrate having an involucre
    • ***


Chambers's Twentieth Century Dictionary
L. involucruminvolvĕre, to involve.


In literature:

Nuttall's flowering dogwood makes a brave display with its wealth of show involucres in the spring along cool streams.
"Steep Trails" by John Muir
An involucre of narrow, pinnately cut bracts.
"Wild Flowers Worth Knowing" by Neltje Blanchan
The involucre-scales are sometimes delicately rose-coloured.
"Explorations in Australia, The Journals of John McDouall Stuart" by John McDouall Stuart
In these the involucre is little altered, and the receptacle is attacked by larva.
"Journals of Travels in Assam, Burma, Bhootan, Afghanistan and TheNeighbouring Countries" by William Griffith
I found the first point of similarity with the filbert is in the involucre covering the nut.
"Growing Nuts in the North" by Carl Weschcke
The leaves are ternate, segments numerous; each leaf springs from the tuber, with the exception of those of the involucre.
"Hardy Perennials and Old Fashioned Flowers" by John Wood
On one of my black walnut trees there is a serious pest, a very little worm which infests the involucre.
"Northern Nut Growers Association Report of the Proceedings at the" by Various
The nuts, with their leaflike involucres, are attractive in appearance in August and September.
"Northern Nut Growers Association Report of the Proceedings at the" by Various
They are further protected by the growth of the hinder margin of the depression to form a scale-like involucre (in).
"Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3" by Various
In some localities involucre borers make tunnels between the nut and the involucre, interfering with the development of the kernel.
"Northern Nut Growers Association Report of the Proceedings at the Second Annual Meeting" by Northern Nut Growers Association
Pedicelled spikelets inside the involucral similar to those of the involucral.
"A Handbook of Some South Indian Grasses" by Rai Bahadur K. Ranga Achariyar
Flowers sessile, in small clusters of 3 to 4, in an involucre in the axils of the leaves.
"Trees of the Northern United States" by Austin C. Apgar
Spikelets subtended by an ovoid thorny involucre 3-8 mm.
"The Plants of Michigan" by Henry Allan Gleason
The involucres are six to eight inches wide.
"My First Summer in the Sierra" by John Muir
When the umbellets are subtended by an involucre, this secondary involucre is called an INVOLUCEL.
"The Elements of Botany" by Asa Gray
The flowers are borne on an erect umbel and central scape with involucre.
"The New Gresham Encyclopedia. Vol. 1 Part 3" by Various
After fertilization has been accomplished throughout the blossom, the involucre closes, and remains closed during the ripening of the fruit.
"Scientific American Supplement, No. 648, June 2, 1888." by Various
The involucre consists of an outer spreading (or reflexed) and an inner and erect row of bracts.
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 9" by Various
Flowers mostly 4-merous and with 4 (rarely 2) stamens, involucellate in involucrate heads; corolla-lobes imbricate.
"The Manual of the Botany of the Northern United States" by Asa Gray
Nuts 1 or 2, within the enlarged prickly involucre.
"Woodland Gleanings" by Charles Tilt