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BOTANY OF FERNANDO NORONHA, 



47 



cultivated 



aud has run half wild in many spots ; but it is most abundant on 

 Rat Island at the place covered with guano. Here it is very 

 profuse, owing to the richness of the soil ; and the main island is 

 supplied with the tubers from this spot. 



Ipomcea digjtata, L. Sp. PI. p. 228 ; Meissn. in Mart. Fl. 

 Bras. vii. p. 278. — Batatas paniculata, Choisy, Conv. Or. p. 54. 



Tolerably common in spots in the central district, growing 

 among the Leguminosae. 



Distribution. Throughout the tropics, 



I. pentaphylla, Jacq. Coll. Bot. ii. p. 297 ; Ic. PI. Bar. ii. 

 p. 319. 



Meissn 



Mart 



This Convolvulus was very common in the central district of the 

 main island, and also in Eat Island. 

 Distribution. Over the whole world. 



Jacquemontia etjbicola, n. sp. 



Herba prostrata vel suberecta, ramosa pubescentia glauca un- 

 dique tecta. Folia cordata ovata acuta, 2 uncias longa, 1| uncias 

 lata, petiolus uncialis. Flores congesti in capitula parva, pedun- 

 culis 2-uncialibus suberectis axillaribus et subterminalibus. 







h 



iales. Sepala 5, 

 acuminata i-un- 



cialia, 3 minora ovata acuta. 



2 



longa, pallide azurea, \ unciam in diametro. Stamina 5, pistillum 

 haud superantia. Anthera ovalis, loculis haud disjunctis. 



Ova- 



rium conicum obtusum. 

 lobis ovalibus. 



Eat Island, southern 



gracilis rectus ; stigm 



southern 



from near San Antonio to Tangle Bay, growing on open spaces 

 facing the sea. 



A very pretty delicate lavender-blue Convolvulus, almost white 

 at times, with stem and leaves covered with a close grey 

 pubescence. 



. 



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*;* 



Americana. L. Sp. PI. p. 180 ; Jacq. Amer. p. 24 



Meissn. in Mart 



rare on the main island : parasitic on Cucumis 











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