324 TKANSACTIOXS AND PKOCEEDIXGS OF THE [Sess. lix. 



BORAGINACK^. 



Ehretia petiolakis, Lam. — Baker, Flor. Maur. Seych., 

 p. 201. Coralline limestone, 10 feet above sea-level, 18th 

 August 1888. Native. 



Shrub 4-7 feet high, with terete, glabrous, brown 

 branches and green branchlets. Leaves green above, paler 

 green beneath. Calyx ^ inch long, 5 -toothed, glabrous, 

 green, persistent, finally becoming yellowish-green ; teeth 

 deltoid, half as long as the tube. Corolla j inch long, 

 glabrous, white. Stamens glabrous, white. Ovary glab- 

 rous, green ; style glabrous, pale green ; stigma capitate, 

 2-lobed, green. Drupe |-i% inch broad, depresso- globose, 

 glabrous, shining-red, juicy, crowned with the persistent 

 black base of the style. Pyrenes 4, ^ inch long, triquetrous, 

 3'ellowish with a whitish spot on the inner border, flat on 

 the sides, convex on the back, which has 6 prominent 

 longitudinal cartilaoinous ridges. 



TouRNEFOETiA ARGENTEA, Linn. fil. — Baker, Flor. Maur. 

 Seych., p. 201. Coralline limestone, at seashore, 5 feet 

 above sea-level, 20th June 1890. Xative. Only one 

 shrub seen by me. 



COXVOLVULACE.E. 



*Ipom(ea nil, Pioth. (Convolvulus, Linn. Bot. Pieg. t. 

 276). — Common on waste ground, 5-20 feet above sea- 

 level, 18th August 1888. Naturalised. 



It was also found by me on coralline limestone, 10-15 

 feet above sea-level, rare at the north side of He de la 

 Passe, on 26th October 1888. Naturalised. 



This species, which occurs round the world in the 

 tropics, is recorded as naturalised in great quantity at 

 " Grand-Port," and in the ravines about " Eeduit," 

 Mauritius, under " Pharhitis Nil" in Bojer, Hort. Maur., 

 p. 227. It is recorded as naturalised in Ptodriguez by 

 Balfour, in Baker, Flor. Maur. Seych., p. 209. 



[Ipomcea Batatas, Lam. — Baker, Flor. Maur. Seych., 

 p. 210. Planted near the lime-kiln, 20th June 1890. 

 This species is the common cultivated sweet potato.] 



