mmatocumulus (mama tokumulus)

A name given by Ley to a cumulus cloud when it has a festooned appearance: called pocky cloud in Orkney, where Orkney, it is usually followed by wind. Mammea (ma-me'ä), n. [NL. (Linnæus, 1737), Sp. maméy ).] A genus of dicotyledonous polypetalous trees of the natural order Guttiferæ and tribe Calophylleæ, characterized by a calyx which is closed before the flower expands, and then becomes valvately 2-parted, and by a 2- to 4-celled ovary contai containing four ovules, usually with a peltate stigma. They are trees with rigid coriaceous leaves, often covered with pel lucid dots; axillary flowers, either solitary or in clusters; and fruits which are indehiscent drupes with from one to four large seeds. There are 5 species, natives of America and tropical Asia and Africa. M. American a is a tall tree with a thick spreading head, somewhat resembling Magnolia grandiflora, and showy white sweet-scented flowers. The fruit, known as the mammee - apple or South American apricot, is much esteemed in tropical countries, and is eaten alone, or cut in slices with wine or sugar, or preserved various It is yellow, and its right and left sides are entirely separate after birth, when the arterial and venous circulation and the pulmonary and systemic ve els become differentiated. The heart and lungs are situated in the thoracic cavity, which is completely shut off from the abdomen by a muscular diaphragm. The aorta is single and sinistral, curving over the left bronchus. The blood contains red circular non-nucleated blood-disks and white blood-corpuscles. The brain has large cerebral hemispheres, which are more or le extensively united by commi ures, especially by a corpus callosum, which when well developed roofs over more or le of the lateral ventricles. The skull has two occipital condyles and an o ified bas i occipital. The lower jaw, composed of a pair of simple mandibular rami, is directly articulated by a convex condyle with the glenoid fo a of the squamosal. The malleus and incus become specialized auditory o icles, lodged like the stapes in the cavity of the tympanum. (See Mallei fer a.) Limbs are always present. There are ordinarily two pairs, anterior and posterior, or pectoral and but the latter are sometimes aborted, as in cetaceans and sirenians. The ankle joint, if there is one, is always formed between crural and tarsal bones, and is never mediotarsal. The body is usually more or le hairy, sometimes naked, rarely scaly or with a bony exoskeleton. The cla Mammal i a is definitely circumscribed, no transitional forms being known. It has been subdivided in various ways. Linnæus had 7 orders, Primates, Bruta, Feræ, Glires, Pecora, Belluce, and Cete, with 40 genera in all. Cuvier made the 9 orders Bimana, Quadruman a, Carnaria, Mars up i at a, Rodent i a, Edentata, Pachyderm at a, Ruminant i a, and Cetacea. Owen divided Mammal i a primarily into 4 subcla es, according to the character of the brain, and 14 orders, as follows: Archen cephala - Bimana; Gyrencephala - Quadruman a, Carni vor a, Artiodactyl a, Peri odactyl a, Proboscidia, Sirenia, Cetacea; Li encephala - Bruta, Chiropter a, Insect i vor a, Ro dentia; Lyencephala - Marsupial i a, Monotremata. Dana's prime divisions correspond to Owen's by other names, Archontia, Me gas then a, Micros then a, and Oöticoidea. In 1872 Gill arranged mammals in 3 subcla es and 14 orders, as follows: subcla Mono delph i a, containing all placental mammals, orders Primates, Feræ, Ungulata, Toxodontia (fo il), Hyracoidea, Proboscidea, Sirenia, Cete, in one series Educabilia, and Chiropter a, Insect i vor a, Glires, Bruta, in a second series Ineducabilia; subcla Didelphia, the implacental mammals, order Marsupial i a alone; subcla Ornithodelphia, the oviparous mammals, order Monotre mat a alone. This is substantially the cla ification now almost universally current, but it is exclusive of certain fo il groups which require ordinal rank. The families of mammals now recognized are about 150 in number, the genera nearly 1,000; the living species are about 3,250. pulp about the seeds are very bitter, but the intermediate portion is sweet and aromatic. From the flowers a spirituous liquor is distilled. (See eau Créole, under eau.) The seeds, which are large, are used as anthelmintics, and a gum distilled from the bark is used to destroy chigoes. The tree is a native of the West Indies and tropical America, but is often cultivated in the tropics of the Old World. mammeated (mam'ē-a-ted), a. [L. mam me at us (Plautus), an erroneous form for mатта tus, having breasts: see mammate.] Having mammæ or breasts. [Rare.] mammee (ma-me'), n. The Mammea Ameri can a, or its fruit. - African mammee, another tree or fruit, probably of the genus Garcinia. mammee-apple (ma-mē'ap"1), n. The tropical tree Mammea American a, or its fruit. mammee-sapota (ma-me'sa-pō"tä), n. Same as marmalade -tree. mammellière (mam-e-lyar'), n. [F., instead of one of two side by side. mammert (mam'èr), v. i. [ from doubt or hesitation. IMG:content-0151.png:[blocks in formation] a few forms have been found in Mesozoic beds. Also called Mammifer a and Mallei fer a.