694 Lxxxiii. ASCLEPiADEiE. [Dregea 



The following No. should be compared with this species, but it 

 differs by larger foliage, etc. : — 



LiBONGO. — A twining, widely climbing, lactescent shrub, with the 

 habit somewhat of Mundondo (Chlorocodon Whiteii Hook. f.). In 

 dense forests on the left bank of the river Lifune ; without either fl. 

 or fr. end of Sept. 1858. No. 4233. 



24. ORTHANTHERA Wight, Contrib. Bot. Ind. (ii.) p. 48 

 (1833 ?); K. Schum. in Engl. Nat. Pflanzenfam. iv. 2. p. 265 (1895). 



Barrowia Decaisne (1844) ; Benth. & Hook, f . Gen. PL ii. p. 779. 



1. 0. stricta Hiem, sp. n. 



A glaucous-pruinose, obsoletely tomentellous or glabrate, 

 leafless shrub, 3 ft. high, of a very sad grey aspect, much branched 

 from the base ; branches slender, terete, opposite or alternate, 

 sub-decumbent or oblique, indicating by their position the 

 direction of the prevailing winds ; flowers clustered several (5 to 7) 

 together, lateral on the branchlets or at or opposite the base of 

 the branchlets, about ^ in. long in the bud, tomentellous outside, 

 of a sordid-greenish colour ; calyx about x^. to |- in. long, 5- or 

 6-cleft, the lobes triangular or lanceolate ; corolla-tube inflated at 

 the base, somewhat constricted about or above the middle, |^ to j- 

 in. long ; the lobes of the limb 5 or very rarely 4, lanceolate, ^ 

 to ^ in. long, valvate in aestivation ; follicles solitary or rarely so, 

 2 to 3|^ in. long, f to f in. broad, tapering at each end, glabrate, 

 striate longitudinally ; body of the seeds about \ in. long. 



MossAMEDES. — In rocky maritime situations near Mosaamedes, to 

 the south of the town ; fl. and fr. end of June 1859. No. 4259. 



This should be compared with 0. alhida Schinz in Verh. Bot. 

 Brandenb. xxx. p. 265 (Oct. 1888), but it appears distinct. 



25. CEROPEGIA L. ; Benth. & Hook, f . Gen. PI. ii. p. 779. 

 1. C. tentaculata N. E. Br. in Kew Bull. 1895, p. 261. 

 LoANDA.^A succulent herb, lactescent, twining, springing from a 



depressed-hemispherical bun-shaped fleshy-compact tuber of 1^ to 5 in. 

 in transverse diameter, whitish both inside and out ; the older tubers 

 plunged deep in the ground, 6 inches in diameter, 1^ to 2 in. deep, 

 very juicy but insipid ; stem elongated, cylindrical, 2 to 10 ft. long, 

 branched, below densely leafy ; the leaves gradually decreasing in 

 size towards the apex of the flowering stem, opposite, cordate-ovate 

 lanceolate- or oblong-linear or almost linear, very thickly fleshy, very 

 rigid, brittle, herbaceous-green, more or less repand and undulate on 

 the margin, rather obtuse or acuminate at the apex, shortly mucronate, 

 mostly secund ; flowers subracemose-clustered on the abortive axillary 

 branchlets ; calyx green ; corolla-tube somewhat curved, dilated and 

 rosy-purple at the base, yellowish above ; the lobes of the limb green 

 or yellowish-brown, ciliolate, spreading in a star, gradually attenuate 

 into very long shiny capillary-filiform whitish more or leas twisted 

 extremities, not cohering at the apex ; staminal corona white-yellowish, 

 10-cleft ; the outer segments shell-shaped and concave, spreading ; 

 the inner ones linear-spathulate, erect, connivent at the apex ; all 

 thinly fleshy and green ; stigma flatly pentagonal, greenish ; follicles 

 geminate, 4 in. long, slender, flesh-coloured, striate, cylindrical- 



