E UPHORBIA OE^. 



VI. DICHAPETALUM SERIES. 



Lichopitahim {Chiiillcliu) to. 



Dlchapetalum^ (figs- 221-225), long designated uuder the uame 

 of Chailletia, and of which a distinct family has been made, becaiise 

 the flowers are often hermaphi'odite, must be considered as the 

 highest in organisation of the Eu- 

 2)horhiaceœ with biovulate ovary cells. 

 They are sometimes polygamoiis. In 

 those flowers which combine both 

 sexes a receptacle is seen (frequently 

 convex), bearing a double perianth, 

 an isostemonous andi'occum and a 

 superior gynaeceum. The calyx is 

 formed of five unequal sepals, free 

 or united below, quincuncially im- 

 bricated, larger and more mem- 

 branous, as they are more interior in 

 praefloration, and the corolla, of five 

 alternate petals, more or less deeply 

 divided above into two spoon- or 

 hood-shaped lobes, slightly imbri- 

 cated or induplicate in the bud. The 

 androceum is formed of five sta- 

 mens, alternate with the petals, and 

 with a like number of hypogynous 

 glands, free or united, usually bifid. 

 Each stamen is composed of an hypo- 

 gynous filament and an anther, the 

 two introrse cells of which, dehis- 

 cing longitudinally, are applied on the internal surface of a thick, 

 glandular, coloui-ed connective. The gynteceum is composed of an 

 ovary with two or three cells, surmounted by a style divided 



Vv'. 221. Floriferoiis branch. 



1 Dvp.-Th. Nov. Gen. ft Spec. 78 (1806).— 

 H. Bn. in Adaiisoiiia, xi. 102, t. 9, fig. 7-9.— 

 Leucosia Dup.-Th. op. cit. 79- — Symphyllanthus 

 Vahl, in Natiirist. Sehk. vi. 86 (1810).- 

 ClKiillctia DC. in Ami. Mus. xvii. (1811), 1.53, 

 t. 1, fig. 1 ; Prodr. ii. 57.— Tl'rp. in Diet. Sc. 

 Nat. Atl. t. 247.— Endl. Gen. n. 5758.— B. H. 

 Gtn. 341, n. 1.— H. Bu. in Payer Fam. Nat. 



307.— Mottcuira RoxB. Fl. hnl. ii. 69.— H. Bn. 

 Ft. Gen. Euphothiae. 587.— M. Aug. in DC. 

 Prodi: XV. p. ii. 227. — f Quilesia Blanco, Fl. de 

 Filipp. 176. — Mestotes Soland. MSS (ex. R. Bb. 

 Conijo, U2).— JF<il/ienlier(/ta R. Br. in TVn/l. Cat. 

 n. 4332 (nee Bl. neo Schrad. nee Schum.). — 

 Plappertia Reichb. Con.ip. n. 3824 (ex Endl.). 



