24 VIII. CRUCIFER^. [Xastiirtmm 



VIII. CRUCIFER^. 



The Oruciferse are represented in Angola proper by hardly more 

 than three indigenous species, namely, by two species of Nasturtium 

 in the coast region, and by a Cardamine in the cultivated fields of 

 Golungo Alto. In Huilla only one species was seen, a Lepidium. 

 The cauliflower, the cabbage, the turnip, radishes, and watercress 

 are cultivated in gardens at Loanda, and in the ariinos of the 

 neighbouring districts ; a species of mustard is cultivated in the 

 hilly and highland regions of Angola proper ; the ca'bbages of 

 Benguella are gigantic (Welw. Apont. p. 554). 



1. NASTURTIUM Br.; Benth. & Hook. f. Gen. PI i. p. 68. 



1. N. officinale Br. in Ait. Hort. Kew. edit. 2, iv. p. 110 (1812); 

 Oliv. Fl. Trop. Afr. i. p. 58. 



Golungo Alto. — Common and almost everywhere at the margins of 

 slowly flowing streams, spontaneous, especially near Sange and Bango, 

 and at the banks of the river Quiapoze ; not yet in flower May 1855. 

 No. 1192. 



Ambaca. — In great plenty, as it were covering the streams along 

 considerable tracts, in the marshy meadows between Puri-Cacarambola 

 and N-gombe ; fl. and fr. Oct. 1856. No. 1193. 



Indigenous or more probably introduced long ago. "VVelwitsch in 

 his manuscripts states that it occurred in one spot near Lopollo in the 

 district of Huilla, but there is no specimen in his herbarium. 



2. N. indicum DC. Syst. Veg. ii. p. 199 (1821); Oliv. Fl. Trop. 

 Afr. i. p. 58. 



Barra do Bengo. — Root annual and perennial, sometimes stiffly 

 twisted. In nearly dry pools near the banks of the river Bengo, 

 especially near Panda ; fl. and fr. Dec. 1853. No. 1194. 



ICOLO E Bengo. Not unfrequent around the nearly dry lake of 

 Quilunda, near Prata ; fl. and fr. Sept. 1854. No. 1188. 



Barra do Dande. — Flowers yellow. Frequent in marshy places at 

 the right bank of the river Dande, near Bom bo ; fl. and fr. Sept. 1858. 

 No. 1187. Annual or biennial, H to '1^ ft. high, formed like a 

 Barharea, at the margins of lakes near the river Dande, by Bombo : 

 fruits Sept. 1858. Coll. Carp. 201. 



Loanda. — At the margins of stagnant pools, between Quicuxe and 

 Mutollo ; not yet in full flower July 1854. No. 1187/v. 



3. N. humifusum Guill. & Perr. Fl. Senegamb. p. 19 (1830-31); 

 Oliv. Fl. Trop. Afr. i. p. 58. 



JV. (Clandestinaria) acaule, Welw. Apont. p. 589, n. 68. 



A stemless annual herb, with the habit of Cardamine. Leaves 

 radical, rosulate, spreading like a star, pinnatisect. Peduncles 

 radical, crowded, decumbent, quite leafless, slender. Flowers 

 racemose, greenish-white, very small, very shortly pedicelled. 

 Calyx- segments equal, concave, muricate at the back with 2 or 

 3 hyaline rather elongated acute spreading spines, soon deciduous. 

 Petals usually 2, linear-spathulate, shorter than the 6 toothless 

 stamens. Hypogynous glands 4 or 2, setuliform or sub-alate. 

 Style short, thick ; stigma discoid, undivided. Siliqua g in. long, 



