RUBIACHJS. . 269 



longitudinally at the middle of the face, Nertera has also nearly the 

 flowers of Goprosma, axillary or terminal, solitary. They are slender 

 creeping plants, glahrous or slightly hairy. The flower has a short 

 annular calyx, entire or with five divisions in the true Nertera, the 

 fruit of which is also more fleshy, with two compressed putamens. 

 In one American species, of which the genus Gorynula has been made, 

 the exocarp is less fleshy, coriaceous, and the five calycinal divisions . 

 are less deep. This genus is found in both South America and 

 Oceania from the tropics to the Antarctic regions. Serissa has nearly 

 the flower of the preceding genera, ordinarily hermaphrodite, with 

 funnel-shaped, valvate-induplicate corolla, furnished internally with 

 papillose hairs. The bilocular ovary is surmounted by a tolerably 

 developed disk, and a style divided above into two stigmatiferous 

 branches. It comprises two shrubs of eastern Asia with opposite 

 leaves, setose stipules, axillar or terminal flowers, solitary or in few- 

 flowered cymes. Galopina has nearly the same flowers as Serissa, 

 but the corolla is glabrous within ; they are polygamo-dioecious and 

 in terminal cymes at the top of the branches of erect herbs with oval 

 or lanceolate leaves. The receptacle, lodging the ovary, is obcor- 

 date, punctuate, papillose or muricate ; the calyx is little developed 

 or nil and the fruit dicoccous. The flowers, small and 4, 5-merous, 

 are in much divided compound terminal cymes with slender pedicels. 

 It consists of Cape herbs. Kelloggia, a Californian herb, very near 

 Galopina, has tetramerous flowers of nearly the same organization. 

 The style is divided above into two branches, and the ovary, crowned 

 by a calyx of four pointed lobes, is quite covered with hooked points 

 like that of the Gircece. The fruit is dicoccous. The leaves are 

 opposite with pointed interpetiolar stipules, and the inflorescence is 

 in terminal few-flowered cymes. Gremocarpon, of Comoro, is a woody 

 plant whose characters ally it both to Kelloggia and Galopina. Its 

 axillary inflorescences are dichotomous cymes whose flowers have 

 a glabrous ovary crowned by four sepals and a corolla, the four 

 valvate lobes of which are surmounted, above and without, with a 

 small conical horn. The style is divided above only into two stig- 

 matiferous branches, and accompanied at the base by two reniform 

 glands, superposed to the cells and representing the epigynous disk. 

 The fruit is formed of two cocci with five salient ridges, united by a 

 sort of columella with two branches themselves bifurcate and corre- 



