Capitulum


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capitulum

[kə′pich·ə·ləm]
(biology)
A rounded, knoblike, usually terminal proturberance on a structure.
(botany)
One of the rounded cells on the manubrium in the antheridia of lichens belonging to the Caliciales.

Capitulum

 

(also head) a monopodial inflorescence in plants whose main axis has thickened into a patelliform or globular surface on which small flowers are usually distributed. The flowers are tubular, ligulate, or pseudoligulate. This type of inflorescence is primarily characteristic of plants of the family Compositae (daisy, dandelion, and sunflower). It is also found among plants of the families Umbelliferae (eryngo and sanicle) and Campanulaceae (sheep's-bit). The capitulum is surrounded by a many-leaved involucre, formed by the bracts of the outer flower (in sheep's-bit) or by modified apical leaves (in Compositae). This structure aids in the pollination of the flowers. In the process of evolution, several biological adaptations occurred to prevent self-pollination. For example, the flowers open gradu-ally, and the stamens develop earlier than the pistils. The capitulum developed from the umbel as a result of the reduction of the length of the flower stem.

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The minimum and maximum sizes of the peduncle and capitulum of these octolasmids are given in Table I.
Occurrence of Pedunculate Barnacles of the Symbiotic Genus Octolasmis (Cirripedia: Crustacea) in Two Species of Edible Crabs
Fibrotic processes in the middle ear, vibratory loss between the middle ear structures, and possible deformations on the stapes capitulum may be possible factors for unsuccessful operations.
A Comparison Study of Partial Ossicular Reconstruction Prosthesis (PORP) Placement under the Malleus or Tympanic Membrane Graft in the Presence of the Malleus
52 h and used to calculate the number of bee visits per capitulum per hour.
Pollination and reproductive biology in a hill prairie population of Nothocalais cuspidata (Asteraceae: cichorieae)
Gonostyli with long and narrow capitulum (in dorsal view), bearing a plate-shaped lateral tooth; hind margin of gonostylus convex, caudo-dorsal angle nearly right.
A new tribe of Tropiduchidae (Hemiptera: Fulgoroidea) with revision of the genus Buca and description of asymmetric hind leg spinulation
Subsequently, leaves, stems and inflorescences were placed in an oven at 65 [+ or -] 2 [degrees]C for 4 days, to obtain the dry mass of leaves (DML), stems (DMS), capitulum (DMC) and shoot (DMS= DML+DMS+DMC).
Are plant growth retardants a strategy to decrease lodging and increase yield of sunflower/Os retardadores de crescimento vegetal sao uma estrategia para diminuir o acamamento e aumentar a producao de girassol?
Caption: FIGURE 2: Surgery was indicated for both painful loosening of a radial head prosthesis and an osteochondral fracture of the capitulum humeri (white arrow).
Magnesium-Based Absorbable Metal Screws for Intra-Articular Fracture Fixation
lt;<Et electi qui successu temporis non potuerint sequi chorum, capitulum vel refectorium propter praedicta vel alias de facto omisserint, deponantur ab officio>> (n.
La santa libertad en el magisterio teresiano
Moderate lipping was observed along the margins of the trochlea and capitulum of right humerus #70.
The "boat place" burial: new skeletal evidence from the 1845 Franklin expedition
Its capitulum is slightly larger and more anteriorly placed than the tuberculum.
New material from a huge specimen of Anteophthalmosuchus cf. escuchae (Goniopholididae) from the Albian of Andorra (Teruel, Spain): Phylogenetic implications
Downy mildew causes dwarfing plants and infertile capitulum which reduces productivity (Viranyi & Spring 2011).
El gen de la resistencia Pl2 diferencia la patogenicidad en las razas 304, 704, 314 y 714 de Plasmopara halstedii (mildiu del girasol)
Verum si episcopus vel eius capituli sede vacante delegatus cum inquisitore, aut inquisitor cum altero eorundem propter praemissa nequeat aut nolit personaliter convenire, possit episcopus vel eius seu capituli sede vacante delegatus inquisitori, et inquisitor episcopo vel eius delegato, seu sede vacante illi, qui ad hoc per capitulum fuerit deputatus, super filis committere vices suas vel suum significare per litteras consilium et consensum>> (Concilium Viennense, Decr.
La potesta giurisdizionale del magistrato inquisitore e l'editto di fede quale momento instaurativo dell'actio poenalis nella procedura canonica medievale per inquisitionem
Reduction of solar UV-B mediates changes in the Sphagnum capitulum microenvironment and the peatland microfungal community.
Microfungal composition in an Astelia-Donatia cushion peatland in Tierra del Fuego, Argentina

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