Page:EB1911 - Volume 07.djvu/632

Rh Of species which are more easily duped, such as the hedge-sparrow, mention has already been made.

More or less nearly allied to the British cuckoo are many other forms of the genus from various parts of Africa, Asia and their islands, while one even reaches Australia. In some cases the chief difference is said to lie in the diversity of voice—a character only to be appreciated by those acquainted with the living birds, and though of course some regard should be paid to this distinction, the possibility of birds using different “dialects” according to the locality they inhabit must make it a slender specific diagnostic. All these forms are believed to have essentially the same habits as the British cuckoo, and, as regards parasitism the same is to be said of the large cuckoo of southern Europe and North Africa (Coccystes glandarius), which victimizes pies (Pica mauritanica and Cyanopica cooki) and crows (Corvus cornix). True it is that an instance of this species, commonly known as the great spotted cuckoo, having built a nest and hatched its young, is on record, but the later observations of others tend to cast doubt on the credibility of the ancient report. It is worthy of remark that the eggs of this bird so closely resemble those of one of the pies in whose nest they have been found, that even expert zoologists have been deceived by them, only to discover the truth when the cuckoo’s embryo had been extracted from the supposed pie’s egg. This species of cuckoo, easily distinguishable by its large size and long crest, has more than once made its appearance as a straggler in the British Isles. Equally parasitic are many other cuckoos, belonging chiefly to genera which have been more or less clearly defined as Cacomantis, Chrysococcyx, Eudynamis, Oxylophus, Polyphasia and Surniculus, and inhabiting parts of the Ethiopian, Indian and Australian regions; but there are certain aberrant forms of Old World cuckoos which unquestionably do not shirk parental responsibilities. Among these especially are the birds placed in or allied to the genera Centropus and Coua—the former having a wide distribution from Egypt to New South Wales, living much on the ground and commonly called lark-heeled cuckoos; the latter bearing no English name, and limited to the island of Madagascar. These build a nest, not perhaps in a highly finished style of architecture, but one that serves its end.

Respecting the cuckoos of America, the evidence, though it has been impugned, is certainly enough to clear them from the charge which attaches to so many of their brethren of the Old World. There are two species very well known in parts of the United States and some of the West Indian Islands (Coccyzus Americanus and C. erythrophthalmus), and each of them has occasionally visited Europe. They both build nests—remarkably small structures when compared with those of other birds of their size—and faithfully incubate their delicate sea-green eggs. In the south-western states of the Union and thence into Central America is found another curious form of cuckoo (Geococcyx)—the chaparral-cock of northern and paisano of southern settlers. The first of these names it takes from the low brushwood (chaparral) in which it chiefly dwells, and the second is said to be due to its pheasant-like (faisan corrupted into paisano, properly a countryman) appearance as it runs on the ground. Indeed, one of the two species of the genus was formerly described as a Phasianus. They both have short wings, and seem never to fly, but run with great rapidity. Returning to arboreal forms, the genera Neomorphus, Diplopterus, Saurothera and Piaya (the last two commonly called rain-birds, from the belief that their cry portends rain) may be noticed—all of them belonging to the Neotropical region; but perhaps the most curious form of American cuckoos is the ani (Crotophaga), of which three species inhabit the same region. The best-known species (C. ani) is found throughout the Antilles and on the opposite continent. In most of the British colonies it is known as the black witch, and is accused of various malpractices—it being, in truth, a perfectly harmless if not a beneficial bird. As regards its propagation this aberrant form of cuckoo departs in one direction from the normal habit of birds, for several females, unite to lay their eggs in one nest. It is evident that incubation is carried on socially, since an intruder on approaching the rude nest will disturb perhaps half a dozen of its sable proprietors, who, loudly complaining, seek safety either in the leafy branches of the tree that holds it, or in the nearest available covert, with all the speed that their feeble powers of flight permit.

 CUCKOO-SPIT, a frothy secretion found upon plants, and produced by the immature nymphal stage of various plant-lice of the familiar Cercopidae and Jassidae, belonging to the homopterous division of the Hemiptera, which in the adult condition are sometimes called frog-hoppers.

 CUCUMBER (Cucumis sativus, Fr. concombre, O. Fr. coucombre, whence the older English spelling and pronunciation “cowcumber,” the standard in England up to the beginning of the 18th century), a creeping plant of the natural order Cucurbitaceae. It is widely cultivated, and originated probably in northern India, where Alphonse de Candolle affirms (Origin of Cultivated Plants) that it has been cultivated for at least three thousand years. It spread westward to Europe and was cultivated by the ancient Greeks under the name  ; it did not reach China until two hundred years before the Christian era. It is an annual with a rough succulent trailing stem and stalked hairy leaves with three to five pointed lobes; the stem bears branched tendrils by means of which the plant can be trained to supports. The short-stalked, bell-shaped flowers are unisexual, but staminate and pistillate are borne on the same plant; the latter are recognized by the swollen warty green ovary below the rest of the flower. The ovary develops into the “cucumber” without fertilization, and unless seeds are wanted, it is advisable to pinch off the male flowers.

There are a great many varieties of cucumber in cultivation, which may be grouped under the two headings (1) forcing, (2) field varieties.

1. The former are large-leaved strong-growing plants, not suited to outdoor culture, with long smooth-rinded fruit; there are many excellent varieties such as Telegraph, Sion House, duke of Edinburgh, &c. The plants are grown in a hot-bed which is prepared towards the end of February from rich stable manure, leaves, &c. A rich turfy loam with a little well-decomposed stable manure forms a good soil. The seeds are sown singly in rich, sandy soil in small pots early in February and plunged in a bottom heat. After they have made one or two foliage-leaves the seedlings are transferred to larger pots, and ultimately about the middle of March to the hot-bed. Each plant is placed in the centre of a mound of soil about a foot deep and well watered with tepid water. The plants should be well watered during their growing period, and the foliage sprinkled or syringed two or three times a day. In bright sunshine the plants are lightly shaded. When grown in frames the tops of the main stems are pinched off when the stems are about 2 ft. long; this causes the development of side shoots on which fruits are borne. When these have produced one or two fruits, they are also stopped at the joint beyond the fruit. When grown in greenhouses the vines may be allowed to reach the full length of the house before they are stopped. To keep the fruits straight they may be grown in cylindrical glass tubes about a foot long, or along narrow wooden troughs. If seeds are required one or more female flowers should be selected and pollen from male flower placed on their stigmas.

2. The outdoor varieties are known as hill or ridge cucumbers. They may be grown in any good soil. A warm, sheltered spot with a south aspect and a mound of rich, sandy loam with a little leaf-mould placed over a hot-bed of dung and leaves is recommended. The mounds or ridges should be 4 to 5 ft. apart, and one plant is placed in the centre of each. The seeds are sown in March in light, rich soil in small pots with gentle heat. The seedlings are repotted and well hardened for planting out in June. The plants must be well watered in and, until established, shaded by a hand-light from bright sunshine. When the leading shoots are from 1½ to 2 ft. long the tips are pinched off to induce the formation of fruit-bearing side-shoots. If seed is required a pistillate