16 THE VOYAGE OF H.M.S. CHALLENGER. 



Cassia occidentalis, Linn. 



Cassia occidentalis, Linn., Sp. PL, ed. 1, p. 377; Benth. in Trans. Linn. Soc. Lond., xxvii. p. 532; 

 Griseb., Fl. Brit. W. Ind., p. 209. 



Fernando-Noronha. Moseley. 



All over Tropical America, and also now common in Tropical Asia and Africa, though 

 probably of American origin. 



ONAGEAKIE^E. 



Jussisea Linifolia, Vahl. 



Jussicea linifolia, Vahl, Eclog. Bot., ii. p. 31 ; Micheli in Mart. Fl. Bras., xiii. pars 2, p. 162. 

 Jussicea acuminata, Swartz ; Griseb., Fl. Brit. W. Ind., p. 272. 



Fernando-Noronha. Moseley. 

 Nearly everywhere in the tropics. 



Cereus insularis, Hemsl., n. sp. (Plate XIV.) 



Cereus insularis, Hemsl., n. sp. 



Cereus rei)ens vel vagans, valde ramosus, ramis cylindricis 1-2 poll, diametro, 

 G-angulatis ; costse tenues, compressse, continuse ; areolae confertre, breviter tomentosse ; 

 aculei 12-15, insequales, radiati, teretes, flavi. Flores fiavi, circiter 5 poll, longi ; calycis 

 tubus prseter squamellas parvas paucissimas nudus, glaber, 3^-4 poll, longus, ut videtur 

 rectus, sepalis pauciseriatis augustis acutis, longioribus pollicaribus ; petala pauciserrata 

 augusta, acuta, sepala vix excedentia ; stamina numerosissima, multiseriata, quam petala 

 breviora, filamentis filiformibus ; ovarium inerme, paucisquamosum ; stylus stamina 

 superans, stigmate 13-radiato. 



St Michael's Mount. Moseley. 



This species is near Cereus flagelliformis , Haworth, Cereus flagriformis, Zuccarini, 

 and others of the group Flagriformes in habit ; but its yellow flowers more nearly approach 

 those of Cereus ccerulescens, Pfeiffer, in having an almost naked calyx tube. Moseley states 

 that it covers the cliffs with a tangled mass of branches. 



CUCURBITACE^E. 



Trianosperma racemosa, Griseb. 



TYianosperma racemosa, Griseb., Cat. PI. Cub., p. 112; Cogniaux in DC. Monogr. Thanerog., iii. 



p. 768 (varietates 7), sub Cat/upon in. 

 Cionandra racemosa, Griseb., Fl. Brit. W. Ind., p. 286. 



St Michael's Mount. Moseley. 



Mexico to Venezuela, and Cuba to Trinidad and Guiana. 



