Thus we say that the specific difference is the formal part of the essential definition, because the difference is conceived as actuating the genus into species.
Lastly, that the two aforesaid differences between principle and cause do not apply to principles and causes of the same genus can be easily verified by a glance at each genus.
Thus we say, for instance, that the genus is the material part of an essential definition, because the genus is potential respecting some specific difference, by which it may be further determined.
Ambrosia beetles are represented in the South by several species of the genus Platypus of which only P.
Nearly all the native pines in southern United States are attacked by various needle rust fungi of the genus Coleosporium.
Black cherry and other species of the genus Prunus are preferred hosts, but other trees in the family Rosaceae are sometimes attacked.
Herbaceous plants of the genus Comandra, commonly known as false toadflax or comandra, are also attacked.
Homogenesis means simply that such organism comes into existence directly from a parent organism of the same race, and hence of the same species, sub-species, genus and so forth.
Provisionally this genus has been grouped with the Ratitae, which at any rate are a heterogenous assembly.
Birds which are originally immigrants from North America: Podicipedidae, with the flightless Centropelma on Lake Titicaca; Ceryle, the onlygenus of kingfishers in the New World; all the Oscines.
On the other hand, the late Tertiary Dryornis is a member of the Cathartae or American vultures, and Mesembriornis, likewise of late Tertiary date, is a close forerunner of the recent genus Rhea.
Of this genusis that concealed motion which fermentation produces in the particles that compose flour, which, however scattered, however separated, unite, and form that mass which we call BREAD.
Of the motion of this genus we are perfectly sensible.
To the genus Blatta belong a number of small European species, which mostly lurk in woods and thickets.
The Neoblattariæ of this Triassic deposit are still smaller, being actually smaller than the average mesozoic Cockroach, and one or two of them, of the genus Neorthroblattina (see figure of N.
A genus of Ichneumons, parasitic upon Periplaneta and Blatta.
Pipistrellus cinnamomeus Miller 1902 Referred to the Genus Myotis By E.
In preparing this taxonomic account of bats of the genus Myotis, the specimens (type and two from Papayo) of Pipistrellus cinnamomeus seem not to have been examined.
At intermediate depths they mantle the ocean floor with a white, soft lime deposit known as Globigerina ooze, from a genusof the Foraminifera which contributes largely to its formation.
That of a genus allied to the Diplodocus measures six feet and eight inches, and the total length of the animal must have been not far from eighty feet, the largest land animal known.
Descended from small amphibious animals, they later included great marine reptiles, characterized in the typical genus by long neck, snakelike head, and immense paddles.
By the end of the Eocene a three-toed genus of the horse family had appeared, as large as a sheep.
The Lower Cambrian is characterized by the presence of a trilobitic fauna in which the genus Olenellus is predominant.
The Middle Cambrian is marked by the genus Paradoxides, and the Upper Cambrian by the genus Olenus.
Phenacodus is a characteristic genus of the early Eocene, whose species varied in size from that of a bulldog to that of an animal a little larger than a sheep.
A genus continues with new species after all the species with which it began have become extinct.
Observations on the life cycles of painted turtles (genus Chrysemys).
African side-necked terrapins of the genus Pelusios have a movable forelobe on the plastron.
The genus Terrapene, in my view, contains seven species, comprising 11 named kinds.
A new species of pocket gopher (Genus Pappogeomys) from Jalisco, Mexico.
Systematic Relationships and Distribution Turtles of the genus Terrapene belong to the Emyidae, a family comprising chiefly aquatic and semiaquatic species.
It is the only species of the genus that occurs in both Mexico and the United States.
The genus Terrapene seems to have departed farther from a generalized emyid form than have other kinds of box-turtle-like chelonians.
Terrapene ornata is, in fact, the only species of the genus that may be considered an habitual burrower.
A taxonomic revision of the genus Terrapene was begun in 1956 as an outgrowth of the present study.
This genus is named in allusion to the splendid appearance of the branches, covered with scarlet flowers of curious construction, which come out of the old wood.
Zamia, a genus of plants in the natural order of Cycadeae.
The genus consists of about eighty species; seventy of them are exotics; many of them natives of the Cape of Good Hope, with little flowers of brilliant colours.
There are four species of this splendid genus kept in the Green-house.
Tabernaemontana, a genus of little beauty, except for one or two species.
This is a beautiful genusof plants, flowering very profusely all summer, and some of them early in spring.
Schotias, a beautifulgenus of six species, which will require the warmest part of the Green-house to keep them.
Kaempferia, an Asiatic genus of tuberose rooted plants; none of them in our collections, except K.
The economy of the genus Colchicum in regard to its bulbs, flowers, and seeds, is altogether singular, and may be termed an anomaly of nature.
Gompholobiums, a genus of very pretty delicate plants, all papilionaceous; flowers generally yellow with a little red; foliage very variable.
Marica, a genus of Hot-house plants, closely allied to Iris, between which there is no distinction in the leaves.
This noble genus contains four species, which are without exception the handsomest plants we are acquainted with, for the beauty of their foliage, and symmetry of their growth, that belong to the Green-house.
The fungus was found to belong to the genus Rozites, and the species was named R.
An allied genus of ants, Cyphomyrmex, were also found to be fungus-growers.
They will attack the nests of a bulky species of the genus Formica; they lift out the bodies of these ants and tear them in pieces, as they are too large for a single Eciton to carry off, a number of carriers seizing each fragment.
But these two species of the same genus are very unequally aided by chance.
The insects it attacks belong to the genus Buprestis.
This genus of stones occurs here and there in mountainous regions, on banks of rivers, and in the fields.
The third of this genus of machine is made of a pipe or pipes and a barrel.
To the first genusbelongs the lapis alabandicus (modern albandite?
The third genus is the material from which glass is made, although it can also be made out of the other two.
Perhaps this kind is neither pyrites nor galena, but has a genus of its own.
The second genus of blowing machine is made with fans, and is likewise varied and of many forms, for the fans are either fitted to a windlass barrel or to an axle.
The first receives and diverts into the shaft the blowing of the wind, and this genus is divided into three species, of which the first is as follows.
For when white, red, and yellow are all comprehended under the genus or name colour, it signifies no more but such ideas as are produced in the mind only by the sight, and have entrance only through the eyes.
Which is not out of necessity, but only to save the labour of enumerating the several simple ideas which the next general word or GENUS stands for; or, perhaps, sometimes the shame of not being able to do it.
In all which we may observe, that the more general term is always the name of a less complex idea; and that each genus is but a partial conception of; the species comprehended under it.
Why the Genus is ordinarily made Use of in Definitions.
Such are all propositions wherein the genus is predicated of the species, or more comprehensive of less comprehensive terms.
Nondescripts of a genus botanical, flowers without stalks, and stalks without flowers.
Among the varieties of the duck genus were several of the Poland species; snowy white, except the vermilion-colored spots on the head, that look like red sealingwax plasters round the eyes.
The plant may be distinguished from similar species of the same genus by the little toothed border on the summit of the ripe fruits, and by the strong and somewhat pleasant odour of all its parts.
The Carline Thistle (Carlina vulgaris), as its name shows, does not belong to the same genus as the others, from which it differs principally in having its inner bracts coloured and spreading.
At least six species of this genus may be found by waysides, in flower during the spring months.
No less than four species of the genus (Hypericum) come within the province of the present chapter.
This genus includes the Chervil or Wild Beaked Parsley (A.
This species may be distinguished from all other members of the genus by its large, yellow flowers, from one and a half to three inches in diameter.
Two species of Sow-thistle (genus Sonchus) are included among our wayside Composites.
Passing next to the order Rosaceae, we first note the Dropwort (Spiraea Filipendula), of the same genusas the Meadow Sweet, frequently met with on the downs and dry pastures of England and Scotland.
They are plants very much resembling the docks; in fact, they belong to the same genus (Rumex) of the order Polygonaceae.
Gymnotus is the only genus of the family which possesses electric organs.
Each is itself an ultimate genus, a genus supremum.
A genus is determinable into its species by the addition of differences which lie outside the concept of the genus itself; being, as we have seen, is not in this way determinable into its modes.
A definition proper of any genus supremum is of course out of the question.
The genus Cyperus includes a number of economic plants, among them the Chinese matting sedge.
There are about six species of the genus Corypha in tropical Asia, but only one of these is found in the Philippines; this is Corypha elata, the buri palm.
American genus of trees of the sterculia or kola-nut family.
American genus of leuciscine fishes, including the chub and dace.
SMUT'-BALL, a fungus of genus Tilletia: a puff-ball.
Latin Luna--also Phoebe: a genus of carangoid fishes, the moon-fishes.
How inexplicable," he exclaims, "on the theory of creation, is the occasional appearance of stripes on the shoulder and legs of several species of the horse genus and in their hybrids!
Hence I have very little doubt, that if the whole genus of humble-bees became extinct or very rare in England, the heartsease and red clover would become very rare or wholly disappear.
Plate IV, but a closer study of the plant and fruit shows that it differs so greatly from all other Philippine species of the genus as to be entitled to specific rank, and it has been named in honor of Dr.
The citron group of the genus perhaps more than any other shows the need of further study and systematization of the entire genus.
The most aberrant type of larva is that of the genus Prosopistoma, which was originally described as an entomostracous crustacean on account of the presence of a large carapace overlapping the greater part of the body.
The sub-aquatic condition lasts a considerable time: in Cloeon, a genus of small and delicate species, Sir J.
Species of this genus occur in Europe, Africa and Madagascar.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "genus" in a variety of sentences. We hope that you will now be able to make sentences using this word.
