The leaves of certain kinds are preferred to others for eating. Thus, in the 

 Kota Kota District, those of the white tubered kind are much preferred to those 

 of either of the varieties, Joni or Kamciputu. 



Ref. 23. 



257. I. eriocarpa R. Br. (Convolv.). 



Kholowa thengo (N, Y), pundi (S, Port Herald), dowolowo (He), lilowolowo (Nk). 



A herbaceous annual, stem long, slender, prostrate or high twining; leaves 

 variable up to 5 ins, long; flowers in dense clusters, corolla quarter of an inch long, 

 white with purple eye or rose or purple ; fruits a globose capsule half an inch diameter, 

 two or four seeded. In flower and full fruit at end of May at the Lake-shore. A 

 weed of cultivated lands found at lake-shore and other low elevations. 



The leaves are cooked with groundnuts or sesame to form a popular side-dish. 



258. I. pes-capraea (L.) Roth. 

 Msaula (Y), malandalala (Nk). 



A straggling perennial on sandy foreshores with very long stems up to 25 ft. 

 or more, leaves simple, suborbicular to elliptic conspicuously emarginate at the apex, 

 thick up to 4 ins. long, bright green, flowers purple, 3 ins. diameter, fruits spherical, 

 I ins. in diameter. 



Stems used for ropes for pulling in fishing nets, the pounded leaves are also 

 rubbed into the nets to encourage the fish to enter. 



259. I. reptans (L.) Poir. 

 Lilowolowo (Nk), dowolowo (He). 



A perennial creeper with long slender stems rooted in sand, leaves cordate, 

 lanceolate or hostate, abundant purple flowers, 2 ins. diameter. 



The leaves are cooked with groundnuts or sesame oil to form a popular side- 

 dish. 



260. Ipomeasp.? 



Cikalandembe (Port Herald). 



The leaves are exposed to the sun for a short time to harden them and then 

 cooked with only a little water, groundnuts are not added. 



261. Ixora narcissodora K. Schum. (Rubiac). 



Msisita (Y). 



A shrub with large oblong leaves to 8 ins. long, flowers white, large up to 3 ins. 

 smelling like narcissi, found in swampy forest at 1,000 ft. (Tt). 



Wood probably useful and durable. 

 Ref. 14; 22; 26. 



262. Jateorhiza palmata (Lam.) Miers (Menisperm.) Calumba Root. 

 Njoka (Y). 



A climbing perennial herb with thick fleshy yellow roots and hairy stems and 

 leaves, leaves alternate broadly rounded in outline and palmately 5-lobed, cordate 

 at base. Male flowers yellow -green minute in compound racemes, fruits ovoid 

 thinly hairy. Found on alluvial soils in forest and bushland at low altitudes. 



Roots used by the Yao as an anthelmintic. An important local industry in the 

 Lindi District of Tanganyika where the roots are collected by the natives and exported 

 as Calumba Root to drug markets in Europe. 



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