at the end. The carpels are numerous, 

 united by a short beak, and are one-seeded. 

 About half-a-dozen species are recorded, 

 and some of them are known in cultiva- 

 tion. C. digitata, which is one of the 

 original typical species, has no involucel 

 beneath the flowers. It is a herbaceous 

 perennial, with palmately five-parted root- 

 leaves, having lobed or toothed segments, 

 and a smooth slender branching stem two 

 to two and a half feet high, producing a 

 few leaves towards the base, but leafless 

 above, and producing the flowers in corym- 

 bosely racemose heads. The flowers are 

 five-petaled, a couple of inches across, the 

 1 petals fimbriately toothed at the truncate 

 ; apes, and bearded at the base, of a rich 

 '■ dark crimson-purple, and very handsome. 

 : This plant is sometimes called Nuttallia 

 grandiflora. C. Papover, another species of 

 j the genus, a good deal resembles digitata, 

 ■ but this is furnished with a three-leaved 

 I involucel. It has five-lobed leaves with 

 I lobate segments and large solitary long- 

 i stalked flowers from the upper axils, these 

 j being of a rich bright rosy-lake colour, 

 J and very showy. The name Callirhoe has 

 ! also been given by Link, to a group synony- 

 j mous with Amaryllis. [T. M.] 



CALLISIA. A genus of the order of 

 | spiderworts, distinguished by three sta- 

 mens having their filaments or supports 

 bearded, and in the form of a flat circular 

 surface at the top ; the style or appendage 

 on the top of the fruit thread-like and 

 ending in three points. The name is 

 derived from the Greek, and indicates the 

 beautiful or handsome aspect of the species, 

 which are natives of the warmer parts of 

 America, having stems trailing at the base, 

 the leaves shea'thing the stem, their ge- 

 neral outline lance-shaped, often with hard 

 projections at the margin. G. repens, a 

 native of the "West Indies, is one long 

 known in cultivation ; its graceful habit, 

 and brilliant leaves with purple, edges are 

 sufficient recommendations. [G. D.] 



CALLISTACHYS. A genus of pretty 

 Australian plants belonging to the legu- 

 minous family, and having alternate stalked 

 entire smooth or silky leaves, and long 

 | racemes of yellow or purple flowers. The 

 stalked pods are divided when young into 

 as many partitions as there are seeds, but 

 these divisions are obliterated as the pod 

 ripens. The generic name is derived from 

 the Greek, and signifies 'beautiful spike.' 

 A number of the species are in cultivation 

 in greenhouses. C. lanceolate/, has racemes 

 of golden yellow flowers, nearly as large as 

 those of the broom, and the stems and 

 leaves are covered with beautiful silky 

 hairs. C. linearis has dull purple flowers, 

 j while C. longifolia has racemes of yellow 

 i flowers with a purple keel. The species 

 with one exception, C. sparsa, which is 

 found in N.S. "Wales, are all natives of the 

 Swan Paver colony. [A. A. B.] 



CALLISTEM ON. A name indicative of 

 the beauty of the stamens in the eenus of 

 Myrtacece to which it is given. The calyx 



tube is hemispherical, while the limb is 

 divided into five obtuse lobes ; petals five ; 

 stamens numerous, of considerable length, 

 and not united together; style thread- 

 like ; capsule with three many-seeded eoni- 



| partments, included within the hardened 

 tube of the calyx. These handsome 

 flowering trees or shrubs are natives of 

 Australia. C. salignum has much the 

 appearance of the common weeping wil- 

 low. The young foliage of some of the 

 kinds is of a pink colour, so that the trees 

 when putting forth their leaves appear 

 from a distance to be in blossom. The 

 outer bark of some of the kinds, according 

 to Dr. Bennett, peels off in layers, hence the 



I trees are called Paper Bark trees. Many 

 of the kinds are grown in this country 

 for their handsome flowers. [M. T. MJ 



CALLISTEPHUS. The generic name of 

 plants belonging to the composite order, 

 the distinguishing characters of which 

 are the following : the involucre or part 

 surrounding the heads of flowers consists 

 of three or four series of spreading scales 

 fringed at the edge ; the receptacle or 

 surface which supports the flowers is 

 somewhat convex and slightly pitted ; the 

 fruit compressed, thickest above, its pap- 

 pus or crown in two rows, the outer of 

 partially united bristles, the inner of 

 longer rough hairs. The name is derived 

 from two Greek words, which together sig- 

 nify ' beautiful crown,' in allusion to the 

 appendages on the ripe fruit. The genus 

 was originally founded on the characters 

 of a plant long known as Aster sinensis. 

 The species are annuals, chiefly natives of 

 China; they have erect branched stems, 

 with stalkless alternate and toothed leaves, 

 the branches with single heads of flowers. 

 The one already alluded to as Aster sinensis, 

 and a very general favourite with culti- 

 vators, has the individual florets either 

 strap-shaped or tubular, and presenting 

 various tints of rose, violet and white ; it 

 is the ' Reine Marguerite' of gardeners. 

 It has these recommendations : it is hardy, 

 of easy cultivation, and flowers freely for 

 weeks in succession ; it is therefore a 

 desirable plant in flower-beds. [G. D.] 



CALLISTHENE. A genus of the Vo- 

 ch i..- iu family, found in Brazil, and composed 

 of a few somewhat resinous opposite- 

 leaved trees, which differ from the others 

 in the family in the following combined 

 characters : the five-parted unequal calyx, 

 the upper and larger segment of which is 

 prolonged behind into a spur; the single 

 inversely heart-shaped and stalked petal ; 

 and the solitary stamen whose anther is 

 four-celled. The leaves are either smooth 

 or downy, and have entire margins ; in one 

 species they are oval and about two inches 

 long, while in another they are linear and 

 scarcely half an inch in length. The yel- 

 low flowers (about the size of those of a 

 pea) are either single or numerous in the 

 axils of the leaves, and, like all the others 

 of the family, are remarkable for the 

 unsyrametrical arrangement of their parts. 

 We have first an irregularly five-parted 



