Salacia.] XLi. celastkaci:^ (olivkk). 377 



IMPEKFECTLY KNOWN SPECIES. 



14. S. rufescens, llook.f. Fl. Nigrit. 283. The only specimen whidi 

 I have seen is scarcely sufficient for examination. It is not identifiabU- with 

 any other. Ghibrous with verruculose Ijark. Leaves coriaceous, reddisii 

 when dry, oblong-elliptical to oblanceolate, obtusely acun)inatc, narrowed to 

 a cuneate base, distantly and obscurely denticulate, coarser reticulation sub- 

 prominent beneath, 2-3 in. long-, f-l^- in. broad ; petiole 1-2 lines. Flowers 

 1 or 2 in an axil, on short simple pedicels. "Calyx-lobes roundish; petals 

 shortly clawed. Disk flat, ample. Filaments very short ; anthers transversely 

 elongate, cylindrical." 



Upper Guinea, bierra Leone, T. Vogel ! 



15. S. erecta, Walp. Rep. i. 402. I have not seen flowering spccinuns. 

 Our specimens in leaf and fruit are glabrous ; leaves lanceolate or oblotig- 

 elliptical, obtusely acuminate, rounded or narrowed to tiie base, rf^gidarly 

 serrulate, with subprominent reticulation beneath, 1^-3 in. long, v-1 in. 

 broad ; petiole 1-2 lines. F^ruit subscssile or very shortly stalked, subglo- 

 bose. — Oahjpso erecta, Don, Gard. Diet. i. (J29. 



Upper Guinea. Sierra Leone, Don ! Barter ! 

 Iiower Guinea. Ambaca, Angola, Br. Weltoitsch! 



16. S. Ducis-Wurtembergiae, Iluchst. in Flora, 1844, 307 (odno/.). 

 Shrub. Branches subterete, with ashen bark. Leaves bbovate, obtusely serrate, 

 narrowed at the base into a short petiole, coriaceous, glabrous, copiously reti- 

 culate especially beneath. Axillary panicles diehotomous, six times shorter 

 than the leaves. 



Nile Iiand. Nubia, Scnnar. 

 Unknown to me. 



S. afncana, DC. Prod. i. 570 {Tonsella, Willd. Sp. PI. i. 194), described as with " Leaves 

 obtuse, sparingly glandulosc-deiiticulate ; anthers sessile," I have no means of identifying 



Oeder XLII. RHAMNE^ (by Mr. W. B. Hemsley). 



Flowers regular, hermaphrodite or polygamous. Calyx campanulate urreo- 

 late or cylindrical; the tube generally more or less unitid with the ovary or 

 disk and persistent ; limb 5-lobed ; lobes valvate, deciduous or rarely per- 

 sistent, often with a raised line or keel down the middle internally. Petals 

 4 or 5, hood-shaped or involute, often enclosing the stamens, inserted on the 

 throat of the calyx and alternating with its lobes, rarely absent. J>tamens 4 

 or 5, opposite the petals when the latter are present ; filaments filiform, rarely 

 dilated ; anthers small, 2-celled or rarely with the 2 cells confluent, (riclosed 

 in the petals or rarely protruding beyond them. Disk larije, fleshy, filling 

 the calyx-tube, annidar or cup-shaped and free or lining the calyx-tube, entire 

 or lobed, glabrous or tomentose. Ovary sessile, free or ind)ed(led in the disk, 

 superior or more or less adherent to the calyx-tube, 2-, 3- or 4-celled ; style 

 short, entire or divided into as nuiny lobes as ovary-cells; stigmas terminal, 



