THE INDIGOFERAS OF TROPICAL AFRICA 189 
Hab. Sovra Cenrrat. In the interior near the Tropic of 
Capricorn, Baines! Herb. Ke 
Allied to I. dealbata and I. pungens from the Cap 
: 17. I. rerrasperma Thonn. Beskr. Guin. Pl. 865 * (1828) Baker, 
ep, 73. 
Hab. Upper Guinea. Guinea proper, Thonning. Senegambia, 
Heudelot ! 
Var. HEXASPERMA Vatke in Oesterr. Bot. ‘i XXVili. p. 203 (1878). 
Hab. Zanzibar, Hildebrandt, no. 989 
Allied to 7. simplicifolia Lam 
D. Flowers in aes axillary clusters. 
18. I. corprrotia Heyne ex Roth, Nov. Pl. Sp. 357 ie : 
Baker, J. c.; Schweinfurth in Bull. Herb. Boiss. 1896, App 
p- 236 ; Chiov. l.c. p. 88 (1903). 
Ha b. Nie Lanp, Kotschy, no.18! Abyssinia, Schimper! Col. 
Eritrea, Schweinfurth. 
E. Flowers in dense pedunculate heads. 
19. I. rracuypHyLua Benth. in Hook. Icones Plant. t. 1854 (1881). 
Hab. Bririse Centra Arrica. Shire Highlands, Buchanan, 
nos. 45! 65! 412! 
20. I. potyspn#ra Baker in Kew Bull. 1895, p. 65. 
Hab. Bnririsx Secor Arrica. Lake Saini Fwambo, 
Carson! Herb. 
Legume 2-3- saad Very alene allied we the preceding, 
which, however, branches copiously near the is more 
densely covered with ferruginous bestia cian 
F. Flowers in dense racemes. 
21. I. rusco-serosa Baker in Kew Bull. 1897, p. 256. 
Hab. British Centran Arrica. Masuku —— alt. 6000- 
7000 ft., and between Kebilews and Karonga, Whyt 
Legume 2-3-seede : 
22. I. Thomsoni, sp.nov. Fruticulus humilis erectus sub- 
similis habitu J. Guthrici Bolus (in Journ. Bot. 1896, p. 22). 
Caulis apt strigos Ree Stipule lineares quam petiolus 
) 
scentia tenuiter petiolata. Racemi pauci erecto- ae juniores 
densiflori adultiores laxioriflori, quam racemi I. Guthrtet manifeste 
oribundiores, foliis 13-2-plo longiores. Bractew setacer. Pedi- 
celli calyce breviores. Calycis tubus brevis calycis ov ane 
uam tubus multoties longiores. Vexillum ovatum gequi- 
lateraliter oblanceolatis. Ale: 5 lineari-teres a Pst thet 
ovulatum. Li en maturum haud visum 
aa pier te NTRAL AFRICA. North end of Lake Nyassa, 
J. Thomson ! 
I. acutifolia Schinz from Great t Namaqualand, igh ces 
know from the description, is venoanshe to have only 5-10-flow 
racemes. Stems 4-8 cm. long, terete, slender, slightly hairy. 
