390 ADDENDA. 
6. Landolphia senegalensis, Hotschy d: Peyr. Add: Chevalier 
in Bull. Mus. Hist. Nat. Par. vi. (1900) 306, 421 and vii. (1901) 425, 
427; Hua in Rev. Cult. Colon. xi, 322-328. 
7. Landolphia florida, Benth. The stem of this liane sometimes 
attains a diameter of more than 1 foot, according to De Wildeman and 
Gentil. Add: Chevalier in Bull. Mus. Hist. Nat. Par. vi. (1900) 428; 
Lecomte in Bull. Mus. Hist. Nat. Par. vii. (1901) 196; Hua, in Bull. 
Mus. Hist. Nat. Par. viii. (1902) 65, 66; Busse in Engl. Jahrb. xxxii. 
172; De Wild. in Etudes Fl. Bas et Moyen Congo, i. 67; De Wild. 
& Gentil, Lian. Caoutch. Congo, 87, tab. xi., xii, 
Nile Land. Add: at Aboushendi, on the Blue Nile, Muriel, 49! 
Var. leiantha, Oliv. Add: De Wild. and Gentil, l.c. 89. 
Busse and De Wildeman and Gentil confirm Schlechter’s statement as to the 
wor thlessness of the latex of Z. florida for the production of caoutchouc. 
13. Landolphia scandens, Didr. Add: Hua in Bull. Mus. 
Hist. Nat. Par, viii, (1902), 66; De Wild. in Etudes Fl. Bas Congo, ion 
Upper Guinea. ‘Togo: near Lome, Warnecke, 252! 
South Central. Congo Free State : Kasai District, Lubue, Gentil. 
16. Landolphia ameena, Hua. Add: Ancylobotrys amena, 
Cheval. in Bull. Mus. Hist. Nat. Par. vi. (1900) 422. 
18. Landolphia petersiana, Dyer. Add: Dyer in Hook .Ic. Pl. 
t. 2756. L. scandens, Busse in Engl. Jahrb. xxxii. 169-172 (inel. 
vars, rotundifolia, petersiana, and Tubeufii). According to Busse, all 
the varieties enumerated by him yield some sort of caoutchouc, whilst 
the fruits are edible. 
19. Landolphia owariensis, Beauv. Add: Cheval in Bull. 
Mus. Hist. Nat. Par. vi. (1900) 424; Hua in Bull. Mus. Hist. Nat. Par. 
viii. (1902) 62-68 and in Rev. Cult. Colon, xi. 322-328 ; Busse in Engl. 
Jahrb, xxxii. 169; De Wild. & Gentil, Lian. Caoutch. Congo, 51-88, 
t.i. (not t. ii.). Z. Gentilii, De Wild. ex De Wild. & Gentil, l.c. 61, t.1v. 
Upper Guinea. Liberia: Greenville, Sim, 3! 6! 8! 12! 15! 17! 
Nile Land. Uganda: Dumu Forest, Dawe, 13 partly! 
Mozamb. Dist. German East Africa: Kondeland, Stolz, 94a (ex Busse). 
According to Johnson (label to No. 811), L. owariensis is the source of the 
“white rubber ” of the Gold Coast. 
Var. tomentella Sfapf. Add under Nile Land, Babr el Ghasal District: 
between Pongo River and Bisihi, Broun ! 
19a, Landolphia (Eu-Landolphia) Dawei, Stapf. A scan- 
dent shrub, quite glabrous with the exception of the finely rusty- 
tomentose leaf-buds and infloresences; tendrils unknown; branches 
brown, with numerous pale lenticels. Leaves oblong, shortly acum1- 
nate, subacute or obtuse at the base, 4-8 in. long, 13-2} in. broad, 
thinly coriaceous, glossy above; midrib channelled above, prominent 
