A few minutes later the filaments of the leaf immediately around the insect begin to bend towards it, and others a little farther off soon partake in the movement, which may finally extend more or less to all the filaments of the leaf, and thus a large number of glands are brought in contact with the prey. The process of digestion now goes on, and, in a day or two, all the digestible portions of the insect are dissolved and absorbed, and the filaments that were concerned in the work have resumed their original position, leaving the indigestible portions to dry and to be eventually blown away. The principal food of the Sundews consists of small insects such as ants, midges, flies, small butterflies and moths, caddis-flies, and even small species of dragon-flies. Some of these, more particularly the long-bodied dragon-flies, the smallest of which are over an inch in length, are much too large to be caught and devoured by a single leaf; and in this case it is not at all uncommon for two or more leaves to be concerned in the capture and digestion of a single insect, each one converging its filaments towards the part of the body within its reach, and each one digesting and absorbing the portion against which it can apply its glands. Insects, however, do not constitute the sole food of these plants, for small worms, spiders, centipedes, &c., are caught and digested in the manner described; and the plants may also be fed artificially on small pieces of meat or other nitrogenous substances, which give rise to the same processes and movements as we have observed in connection with the natural mode of feeding. LIST OF FLOWERS CLASSIFIED ACCORDING TO THEIR HABITATS AND HABITS The following list of wild flowers, classified according to their habits and principal habitats, will assist the student in his attempts to identify unknown species. A general acquaintance with the chief distinguishing features of the orders, or, failing this, a frequent reference to these features as given in Chapter I, will be a valuable help; and, the order once determined, the few particulars added to each name will generally narrow the search down to one or two species, leaving the final decision to the more detailed description given in the text. The first number given after each name is the height, or, in the case of climbing and trailing species, the length of the plant; and this is followed by the colour and diameter, of the flower, or, in the case of the _Dipsaceæ_, _Compositæ_, and some other plants in which the flowers are densely clustered, the diameter of the cluster or head. Abbreviations are used as follows:-- W. = white Y. = yellow G. = green R. = red P. = pink C. = crimson V. = violet Bl. = blue Br. = brown Pu. = purple Cr. = cream Li. = lilac Ro. = rose O. = orange Sc. = scarlet p. = pale d. = dark or deep.