FLOHA OF MADAGASCAB. 331 



its parts. Leaves subsessile, 0-9 in. long, 14,-2 in. broad at the 

 middle, entire or obscurely crenulate, narrowed to the base and a 

 subobtuse point, firm but not very rigid in texture, green and 

 rather glossy on both surfaces, with fine immersed veiiilets. 

 Peduncles lateral, slender, j>eudulous, ancipitous, £ ft. long. Ra- 

 cemes cylindrical, moderately dense, 4-6 in. long ; lower flowers 

 2-3nate ; pedicels articulated, 3 in. long. Calyx persistent, 5 in. 

 long; sepals oblong, reflexiug, brownish in the fruiting-stage. 

 Petals and stamens not seen. Pruit turbinate, containing 2-3 

 subglobose polished brown-black seeds the size of a pea. Style 

 finally ^ in. long. — Baron 2376 ! Allied to G. dependens, DC. 

 Mem. t. 6. 



Olax emibnensis, n. sp. 



Glaber, foliis ovatis acutis integris rigidulis uniuerviis, cymis axillaribus 

 sessilibus 6-8-floris, pedieellis brevibus basi bracteatis, calyce campanulato 

 parvo truncato, petalis 5 lanceolatis, antheris fertilibus 3, sterilibus 6 ligu- 

 latis, ovario globoso, stylo elongato. 



An erect shrub, glabrous in all its parts. Leaves alternate, 

 dull grey -green, moderately firm in texture, 2-3 in. long, obtuse 

 or subacute, the veins fine and entirely hidden except the midrib, 

 the petiole very short and articulated at the base. Cymes ses- 

 sile, axillary, deltoid ; pedicels %-\ in., with a minute deltoid per- 

 sistent bract at the base. Calyx campanulate, ^in. in diam., quite 

 truncate. Corolla reddish, cylindrical, 3 in. long. Stamens 3, 

 perfect, with small oblong anthers ; staminodia 6, ligulate, twice 

 as long as the anthers. Ovary ovoid, sessile ; style half as long 

 as the petals ; stigma capitate.— Baron 3078 ! A near ally of the 

 Mauritian O. psittacorum, Vahl (Fissilia, Lam.). 



PyKENACANTHA CnLOKANTHA, n. sp. 



Volubilis, ramulis obscure pilosis, foliis breviter petiolatis obovato- 

 oblongis rigidulis glabris subintegris, floribus foemineis racemosis, pedieellis 

 brevissimis, bracteis Iinearibus, perianthii segmentis 4 obovatis pdosis, 

 fructu oblongo eompresso acuto. 



A shrub, with climbing slender terete pubescent branchlets. 

 Leaves shortly petioled, bright green, moderately firm in texture, 

 obtusely cuspidate, narrowed to a slightly rounded base, 2-3 in. 

 lo ng, f-1 in. broad above the middle, entire or obscurely toothed. 

 Racemes axillary, shortly peduncled, shorter than the leaves; 

 rhachis, short pedicels, and linear bracts pilose. Bud globose, 



