FLOWER ARRANGEMENT 357 TYPES OF ARRANGEMENTS Line Arrangements. Compositions in which the element of line is of first importance are known as line arrangements. Only a relatively small amount of plant material is used in order that the beautiful and characteristic lines of plant growth will show clearly. A favorite line arrangement consists of three sprays of different lengths that go in the same direction or suggest a triangle. Some suitable materials are: columbines, petunias, iris, ixias, tiger lilies, bleeding hearts, Japanese quince, willow, and grasses. Americans have learned from the Japanese how to appreciate and to create line arrangements. The influence of Japanese re- straint, line emphasis, asymmetrical balance, triangular composi- tion, and use of foliage, buds, and plain containers has been exten- sive. Americans adapt these Oriental ideas with good results. Mass Arrangements. Full-bodied compositions in which a comparatively large amount of plant material is employed are known as mass or massed arrangements. The grouping as a whole and the color are more important than line interest. Mass com- positions may be compact, semi-compact, or airy. Mass arrangements may be natural, stylized, or of a period type. The natural effects are suitable for modest flowers in informal rooms. Stylized contemporary mass arrangements have a center of interest, segregated colors, and sometimes linear patterns within the mass. Period arrangements are adaptations of those used in the palaces of Europe at historic periods. Colonial, Federal, and Victorian arrangements are described on the following page. Combination or Line-plus-Mass Arrangements. This popu- lar type of arranging is contemporary American in origin. Line- plus-mass compositions combine the best features of line arrange- ments and mass arrangements; the charm of a color mass is augmented by line interest. The mass should not be much more important than the line element even though it provides the focal point and weight at the base of the composition. Design is emphasized in these arrangements; they are usually stylized, in fact they may be so severely stylized as to be entirely Modern. In such combination arrangements colors are segregated and so are the different kinds of flowers. Some popular shapes of line-plus-mass arrangements are: the triangle, pyramid, circle, up- right semicircle, crescent, fan, and S curve (Hogarth).