How To Use Involucre In A Sentence
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Basal leaves and flowers initiate from a tuberous rhizome and three green cauline leaves arranged in a whorl form an involucre around the developing flower.
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The cupules are simple involucres of bracts which are spirally arranged (according to a Fibonacci pattern) on the floral axis preceding the flower.
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All flowers are enclosed within an involucre with four marginal glands.
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In these the involucre is little altered, and the receptacle is attacked by larva.
Journals of Travels in Assam, Burma, Bhootan, Afghanistan and the Neighbouring Countries
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We used to help my grandmother gather the flowers, remove the green involucre from beneath the flowerhead and separate the rays, or florets.
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Filbert" is a corruption of "full beard," and refers to the involucre extending beyond the nut.
Northern Nut Growers Association, report of the proceedings at the sixth annual meeting Rochester, New York, September 1 and 2, 1915
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Sporangia clustered around the slender bristle, which is the prolongation of a vein, and surrounded by a vase-like, slightly two-lipped involucre.
The Fern Lover's Companion A Guide for the Northeastern States and Canada
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The Hermaphrodite cyathium shows the characteristics measured (length and width of the cyathium involucre and the nectary).
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Basal leaves and flowers initiate from a tuberous rhizome and three green cauline leaves arranged in a whorl form an involucre around the developing flower.
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The pistil was unaffected in some cases, while in some others it was entirely wanting, the gynophore being surmounted by a cup-like involucre, divided into three acutely pointed lobes, each with a midrib; these encircled a series of stalked involucels, as before, and among which were scattered
Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants
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The involucre-scales are sometimes delicately rose-coloured.
The Journals of John McDouall Stuart
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In this way they form a kind of involucre around the central parts.
Species and Varieties, Their Origin by Mutation
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Senegambia, but less glabrous, and with the leaflets of the involucre much larger.
Journal of an Expedition into the Interior of Tropical Australia
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New methods of gathering the nuts after they fall from the involucre or husk are being discovered and improved by the western growers from time to time, so that the old expensive method of hand-picking is being eliminated.
Northern Nut Growers Association Report of the Proceedings at the 41st Annual Meeting Pleasant Valley, New York, August 28, 29 and 30, 1950
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¿Por qué el doctor José Vicente Rangel no tiene nada que lo involucre en los hechos que ocurrieron el 11 de abril cuando todos sabemos cual fue su actuación?...
A reader takes action: Open Letter to His Excellency Ramón Herrera Navarro, Ambassador of Venezuela to the Kingdom of Saudi Arabia
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Later: a small nut or nutlet; a section of a compound (usually hard) fruit; a nut borne in an involucre.
Notes from underground
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ANTHEMOIDES, D.C., with the leaves pubescent and the scales of the involucre paler.
Journal of an Expedition into the Interior of Tropical Australia
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Cohesion of the bracts by their edges, so as to form a tubular involucre, or by their surfaces, so as to form a cupule, is not of uncommon occurrence, under natural conditions, and may be met with in plants which ordinarily do not exhibit this appearance.
Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants
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The involucre is very remarkable, monophyllous, broad at top and 6 or 8-cleft, almost wholly concealing the calyx. —
Journal of an Expedition into the Interior of Tropical Australia
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Dr. Heubener, of Bethlehem, has employed the short, rigid hairs of the involucre as a substitute for those of mucuna, and has found them equally anthelmintic.
Resources of the Southern Fields and Forests, Medical, Economical, and Agricultural. Being also a Medical Botany of the Confederate States; with Practical Information on the Useful Properties of the Trees, Plants, and Shrubs
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The involucre is very remarkable, monophyllous, broad at top and 6 or 8-cleft, almost wholly concealing the calyx. —
Journal of an Expedition into the Interior of Tropical Australia
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I observed to - day a curious monstrosity of an Umbelliferous plant, in which the rays of the umbellules are soldered together; forming an involucre round the immersed central solitary female, the male flowers forming the extreme teeth of the involucre.
Journals of Travels in Assam, Burma, Bhootan, Afghanistan and the Neighbouring Countries