ADDENDA 



5. Salsola Zeyheri, Schinz. Add : 



Iiower Guinea. German South-west Africa: Damaraland ; Kichthofen, 

 Gal]}iit and Pearson, 7546 ! 



3. Polygonum plebeium, R. Br. Add : 



Iiower Guinea. Damaraland : Mouth of Swakop River, Galpin and Pearson 

 7537 ! 



2a. Tylostemon jabassensis, Engl, dh Krause in Engl. Jahrb. 

 xlvi. 143, An erect shrub or tree of moderate height ; branchlets 

 .slender, terete, glabrous or very shortly puberulous when young ; bark 

 smooth, brown. Leaves oblong or oblanceolate-oblong, long-acuminate, 

 slightly attenuated towards the cordate-emarginate base, 6-10 in. long, 

 3-4|- in. broad, thinly coriaceous, glabrous, drying greyish above and 

 brownish beneath ; lateral nerves 9-12, slightly impressed (rarely raised) 

 above, prominent underneath ; petiole stout, 3-0 in. long, widely chan- 

 nelled above. Panicles many-Howered, 5-7 in. long, shortly puberulous. 

 Perianth campanulate, whitish when fresh, drying yellowish-brown, 

 scarcely over J lin. long, hairy within and without ; segments ovate. 

 Introrse stamens with broad, densely hairy filaments ; extrorse stamens 

 slightly narrower with a large roundish gland on each side of the base ; 

 staminodes subcordate-ovate. Ovary broad ovoid, gradually passing into 

 the short stout style. 



Upper Guinea. Cameroons: in a high forest on rocky ground, at Jabassi, 

 by the Wuri River, Ledermann, 1105, 1107. 



4a. Tylostemon ndongensis, Engl, d- Krause in Engl. Jahrb. 

 xlvi. 143. A tree 25-35 ft. high ; branchlets stout, up to 3 lin. thick, 

 terete, glabrous; bark dirty grey to greyish-black. Leaves oblong, 

 rarely obovate-oblong, long-acuminate, narrowed towards the base, t!-8 in. 

 long, 2-3 in. broad, coriaceous, quite glabrous, dark green, drying brown ; 

 lateral nerves 7-10 curved towards the margin and like the ^tout midrib 

 prominent beneath, slightly impressed or raised above ; petiole stout, 

 5-8 lin. long, channelled above. Panicles many-flowered, loose, 4 in. 

 long, sparingly and very shortly pubescent or glabrous, peduncle slightly 

 flattened. Perianth hemispheric, pale green when fresh, drying brownish- 

 black, scarcely over J lin. long, glabrous; segments short, ovate. In- 

 trorse stamens with slightly widened hairy filaments ; extrorse stamens 



1021 



