BOTANY OF FERNAKDO NORONHA. 57 



Euphorbia thymifolia, Burm. f. Fl. Ind. p. 2 ; Boiss. in 

 DC. Frodr. xv. 2. p. Ji7 ; Ic. Thes. Zeyl. t. 105 ; MuelL-Arg. in 

 Mart. Fl. Bras. xi. 2. p. 681. — E. thymifolia, var. /3, L. Amcen. 

 Acad. iii. p. 115. 



A common weed in tlie garden and village ; also in other half- 

 cultivated S]}Ots. 



Distribution. Cosmopolitan. 



E. HYPERiciFOLiA, L. Sp. PI. ed. 1, p. 454 ; Hook. Exot. Fl. i. 

 t. 36; Boiss. in BG. Prod. xv. 2. p. 23. — E. cuspidata, Bertol. 

 Misc. Bot. iii. p. 433, t. 22. f. 2. 



On the sea-shore among stones, not common, below the Sapate 

 near Cape Placelliere. Eat Island, north side. 



Distribution. "West Indies, Mexico, Guatemala, Guiana. 



Makihot utilissima, Fold, Fl. Bras. i. p. 32, t. 24 ; Muell.-Arg. 

 in Mart. Fl. Bras. xi. 2. p. 457, et in DO. Frodr. xv. 1. p. 1064. 



The cultivation and preparation of the Cassava occupies much 

 of the time of the convicts. A considerable quantity is grown 

 for use in the island and for export. It does not appear to escape 

 from cultivation, nor have I seen it here in flower. 



EiciNus communis, L. Sp. PL ed. 1, p. 1006 ; Muell.-Arg. in 

 Mart. Fl. Bras. xi. 2. p. 420. 



The common form here seems to be the var. brasiliensis of 

 Muell.-Arg. It is very common in every part of the main island 

 except the wooded districts ; and also occurs plentifully on Rat 

 Island. It does not appear to be cultivated. 



Jatbopha Curcas, L. Sp. PI. ed. 1, p. 1006 ; Jacq. Flort. Vindob. 

 iii. p. 36, t. 63 ; Muell.-Arg. in Mart. Fl. Bras. xi. 2. p. 487. 



There were a few shrubs of this species in the village, forming 

 hedges with the other species. It is used in medicine. 



J. PoHLiANA, Muell.-Arg. in Mem. Soc. Phi/s. Genhv. xvii. 2, 

 p. 499 ; Boiss. in DC. Prodr. xv. 2. p. 1091 ; Muell.-Arg. in Mart. 

 Fl. Bras. xi. 2. p. 492. — Var. subglabba. 



This is the plant collected by Moseley during the ' Challenger ' 

 Expedition, and not I. gossgpifolia as published, from which 

 species it is very distinct. It is very abundant on Eat Island 

 and the main isle, and is very cousj^icuous from its bluish-grey 

 bare branches. It grows on the open parts of the whole island 



