The flowers are stellate, cymose, on stems rising from the heart of the leafy rosettes.
The oval leaves are dark-green above, and whitish with stellate hairs beneath, the margin entire and slightly recurved.
Besides these more highly differentiated organs of vision, more primitive eyes are present in others down to simple stellate pigment specks without any refracting apparatus.
The parenchyma is made up of stellate cells the processes of which formareticulum.
- Ily xoma showing the stellate and branching cells with their processes interlacing and forming a network.
Usually they are twinned on a prism plane, M, producing pentagonal stellate groups of five crystals; twinning on the plain g, in which the crystals intercross at angles of nearly 60Ã‚°, is less common.
B, stellate hairs from interior of bladder of U.
A pair of triangular prisms having a common face, or a stellate crystal formed by the symmetrical interpenetration of two triangular prisms admits of two internal reflections by faces inclined at 120Ã‚°, and so give rise to two colourless images each at an angular distance of 120Ã‚° from the sun.
the mesogloea is more abun dantly developed in the free-swimming forms, and contains special mesogloeal corpuscles, derived by immigration from the ectoderm, and generally occurring in the form of stellate or bipolar cells.
Kupffer 's Cells - " stellate cells " in the lining of blood channels in the liver.
The yellow brown stellate colonies are an incredibly beautiful sight and are far better seen freshly collected than cleaned in the manner of diatoms.
Namely, stellate cell suicide and an increase in collagenase activity.
The mass of the body consists of richly branched stellate cells - the mesenchyma - and imbedded in this plasmic tissue are the nervous, excretory, muscular and generative organs.
Some of the emperors wore crowns on occasion, as Caligula and Domitian, at the games, and stellate or spike crowns are depicted on the heads of several of the emperors on their coins, but no idea of imperial sovereignty was indicated thereby.
Usually they are twinned on a prism plane, M, producing pentagonal stellate groups of five crystals; twinning on the plain g, in which the crystals intercross at angles of nearly 60°, is less common.
A pair of triangular prisms having a common face, or a stellate crystal formed by the symmetrical interpenetration of two triangular prisms admits of two internal reflections by faces inclined at 120°, and so give rise to two colourless images each at an angular distance of 120° from the sun.
vernalis, ft., has large bright yellow stellate flowers in April.
In Ulva and Mesocarpus the chromatophore is a single plate, which in the latter genus places its edge towards the incident light; in Spirogyra they are spiral bands embedded in the primordial utricle; in Zygnema they are a pair of stellate masses, the rays of which branch peripherally; in Oedogonium they are longitudinally-disposed anastomosing bands; in Desmids plates with irregular margins; in Cladophora polyhedral plates; in Vaucheria minute elliptical bodies occurring in immense numbers.
Certain American forms, however, which are preserved as stellate groups, have been interpreted as complex umbrella-shaped colonial stocks, individuals of a still higher order (synrhabdosomes), composed of a number of biserial polyparies (each having a sicula at its outer extremity) attached by their nemacauli to a common centre of origin, which is provided with two disks, a swimming bladder and a ring of capsules.
- Eleutherozoa with a depressed stellate body composed of a central disk, whence radiate five or more rays; this radiate symmetry affects all the systems of organs, including the genital.
It is true that some specialized forms, such as the Brisingidae among starfish, A strophiura and Ophioteresis among ophiurans, contravene the usual diagnoses; but this neither obscures their systematic position, nor does it alter the fact that since early Palaeozoic times these two great groups of stellate echinoderms have evolved along separate lines.
Petaline hairs, though sparse and scattered, present occasionally the same arrangement as those which occur on the leaves; thus, in Bombaceae they are stellate.
61); tubular, having a long cylindrical tube, appearing continuous with the limb, as in Spigelia and comfrey; rotate or wheel-shaped, when the tube is very short, and the limb flat and spreading, as in forget-me-not, Myosotis (when the divisions of the rotate corolla are very acute, as in Galium, it is sometimes called stellate or star-like); urceolate or urn-shaped, when there is scarcely any limb, and the tube is narrow at both ends, and expanded in the middle, as in bell-heath (Erica cinerea).
A few frogs have the skin of the back studded with stellate bony deposits Phyllomedusa, Nototrema), whilst two genera are remarkable for possessing a bony dorsal shield, free from the vertebrae (Ceratorphrys) or ankylosed to them (Brachycephalus).
The patient is placed in the sitting position to facilitate the spread of anesthesia inferiorly to the stellate ganglion.
The hepatic stellate cell has been recognized to be responsible for most of the excess extracellular matrix observed in chronic liver fibrosis.
Colonies on carrot agar (CA; Brasier, 1967) were slightly stellate with appressed to low tufted aerial mycelium (Fig.
stellate cells " in the lining of blood channels in the liver.
stellate ganglion block - injection of local anesthetic around a group of nerves (found in the neck area ).
stellate colonies are an incredibly beautiful sight and are far better seen freshly collected than cleaned in the manner of diatoms.
stellate cell suicide and an increase in collagenase activity.
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