RUTACE^. 351 



brate, pellucid-punctate, pinnately veined, with the veinlets slightly 

 reticulated, 4 or 5 inches long, 14 to 20 lines broad, not articulated 

 with the petiole; which is 9 or 10 lines long, narrowly channeled 

 above, and with the sides sharply but narrowly margined. Peduncles 

 axillary, solitary, short, the inflorescence as far as developed not 

 longer than the petiole, canescent, bearing pairs of opposite, oblong- 

 ovate, small bracts, from the axils of which are short pedicels (making 

 a short raceme) or perhaps branches, developing several flowers. 

 Calyx four-parted ; the ovate sepals, like the petals, canescent externally, 

 glabrous within, imbricated in aestivation. Petals 4, ovate, a little 

 longer than the calyx, 2 lines in length, thickish, imbricated in aesti- 

 vation, the narrow and thin edges overlapping. Stamens 8. shorter 

 than the petals : filaments thickish, subulate, glandular-clotted on the 

 back ; the four opposite the sepals longer than the others : anthers 

 oblong, emarginate at both ends, two-celled, incumbent. Hypogynous 

 disk crateriform, eight-lobed, the lobes alternate with the stamens. 

 The gyna3cium appears at first view to consist of a four-lobed and 

 four-celled umbilicate ovary, but on examination it is found that the 

 four rounded ovaries are connected only by means of the short style. 

 Stigmas 4, capitate. Ovules geminate, superposed, hemitropous ; the 

 micropyle superior. Fruit wholly unknown. 



Plate 39, A. — Melicope clnerea : a branch, of the natural size. 

 Fig. 1. A flower-bud. 2. Transverse section of the same (diagram). 

 3. Vertical section through the ovaries, &c. 4. Pistil, with the hypo- 

 gynous disk. — All the details magnified. 



3. Melicope barbigera, Sp. Nov. (Tab. 39.) 



M. foliis oblongis ntrinque obtusis, adultis viridibus supra glabris subtus 

 secus costam villoso-barbatis ; pedunculis axillaribus uni-trifloris pe- 

 tiolo brevioribus; folliculis lenticulari-ovoideis. 



Hab. On the mountains of Kauai, Sandwich Islands. 



The specimens, apparently of an arborescent plant, are in fruit, and 

 with some forming inflorescence ; but there are no flower-buds suffi- 

 ciently developed for examination. Manifestly it is a species nearly 

 related to the preceding, of which we possess the flowers alone, while 



