Cussonia.'] . lxx. araliace^ (hikrn). 33 



9^20J in. long, terete, striate. Leaves digitate, with G-9 leaflets ; 

 ovate, broad liear the base, bnt narrowed at the very base, mnch actimi- 

 nate or subcaudate at the apex, thinly coriaceous, serrate, about 5 in. 

 long, on stalks 1^ to 3 in. long, which bear at or near the top glands 

 or even teeth, and which in places tend to be winged. Stipules linear- 

 lanceolate, 1^ in. long. Inflorescence consisting of several erect racemes 

 crowded at the ends of the branches ; bracteoles deltoid-acuniinate, 

 pubescent ; rachis spongy, pubescent, with tawny setose hairs. Flowers 

 on pedicels tV~5 ^^- ^^ng, rather crowded, green. Margin of the calyx 

 sinuoso-5-dentate. Petals deltoid-lanceolate ; filaments not exceeding 

 the petals. Epigynous disk rather shortly conical, with several longi- 

 tudinal ridges in fruit, continuous with the short column of the bitid 

 styles, which are recurved in fruit. Fruit dry, ovoid, ^ in. long. — 

 Sphcerodendron angolenae, Seem, in Journ. Bot. 1865, p. 34, t. 26, et 

 Rev. Heder. 37, t. 1. 



Xiower Guinea. Angola, Pungo Andongo, 2400-3800 ft. alt., fl. Dec, fr. March ; 

 Huilla, 3800-5500 ft. alt. ; Ambaca, fr. October, Dr. Welwitsch ! 



Order LXX. RUBIACE^ffl. (By W. P. Hiem.) 



Flowers usually hermaphrodite, regular and symmetrical, rarely ir- 

 regular or unsymmetrical, sometimes dimorphic. Calyx-tube adnate 

 to the ovary ; limb various. Corolla inserted on the ovary, various in 

 form and aestivation. Stamens usually isomerous with the corolla- 

 lobes, inserted at the mouth or throat or on the tube of the corolla; 

 filaments various ; anthers usually oblong or linear, 2-celled, dehiscing 

 by lateral slits towards the face, rarely connivent and dehiscing by 

 apical pores ; attached at the back or base. Disk at the top of the 

 ovary, between the insertion of the corolla and that of the style, 

 usually annular or cushion- shaped, sometimes inconspicuous or lobed. 

 Ovary 1-12-celled, usually 2-celled; style solitary, entire toothed 

 cleft or partite ; stigma terminal, various in form, entire or lobed ; 

 placenta^ on the septum or at one of the extremities of the cells. 

 Ovules solitary or indefinite or a few in each cell, variously attached to 

 or impressed on the placentas. Fruit various. Seeds albuminous ; 

 albumen copious or scanty, uniform or occasionally ruminated ; embryo 

 straight or curved. 



Shrubs or trees, or in some genera herbs, occasionally scandent ; 

 rarely spinons. Leaves opposite or verticillate, simple, quite entire 

 (or rarely repand-dentate) ; stipules int^r- or intra-petiolar, various in 

 shape, persistent or deciduous, entire, cut or lobed, free or connate or 

 adnate to the leaf-base or petiole, absent (or foliaceous) in the tribe 

 Galiece. Inflorescence various, bracteate or ebracteate ; flowers usu- 

 ally tetramerous or pentamerous, but sometimes even decaraerous ; 

 rarely the calyx is spathaceous or the corolla only trimerous. 



One of the largest Natural Orders, chiefly tropical and subtropical, and most 

 richly represented in America. Al)out 30 genera are fudemio to thi.s Flora, and i 

 are here described for the first time. 



VOL. III. C 



