474 FLORA NIGRITIANA. 
Doratanthera linearis, Benth., and Stemodia serrata, Benth., 
extend from Senegal to Nubia and Egypt; and the common 
East Indian Limnophila gratioloides, Br., is also found m 
Senegal. 
1. Herpestis calycina, Benth.; in DC. Prod. 10. p. 899. var.t 
Accra, Don. 
Don’s specimen is very bad, but appears to belong to the 
narrow-leaved Sierra Leone variety, with rather longer pedicels 
than in other specimens I have seen. The broad-leaved variety 
is from Senegal, as well as three other species, H. Hamilto- 
niana, Benth., H. floribunda, Br., and H. Monniera, H. B. K. 
All three are also East Indian, the H. floribunda extending to 
Tropical Australia, and H. Monniera being common to all the 
warmer regions of the globe. Senegal supplies also one species 
of Dopatrium, D. Senegalense, Benth. 
1. Vandellia diffusa, Linn.— Bent. in DC. Prod. 10. p. 416. 
— Sierra Leone, Vogel, both the sessile-flowered and pedun- 
culate varieties ; a common East Tropical American plant. 
2. Vandellia Senegalensis, Benth. in DC. Prod. 10. p. 416. 
— Sierra Leone, Don; on the Nun River, Vogel ; Senegal. 
The little East Indian Glossostigma spathulatum, Am., !$ 
also found in Senegal. 
1. Capraria biflora, Linn.—Benth. in DC. Prod. 10. p. 499.— 
Cape Coast, Vogel, Don ; frequent in America. 
1. Scoparia dulcis, Linn.—Benth. in DC. Prod. 10. p. 431.— 
Sierra Leone to the Niger, Vogel, Don, &c.; as common here 
as in all the warmer parts of Africa, Asia and America. 
There are three Senegambian species of Buchnera; B. dura, 
Benth.; common to S. Africa and Madagascar ; B. hispida, 
Hamilt., extending into Abyssinia, Madagascar and East India; 
and B.-leptostachya, Benth., found also in Madagascar. The 
Guinea plant described as B. linearifolia, Schum. et Thonn., 
belongs probably to some other genus. 
1. Striga orobanchoides, Benth. in DC. Prod. 10. p. 501.—0n 
the Quorra, Vogel; Senegal, East Africa and East India. 
2. Striga aspera, B. filiformis, Benth. in DC. Prod. 10. p. 501- 
