LIST OF THE PLANTS OF BARKUDA. 307 



" On edge of wells, typical. Flowers in the rains. 

 Distfih. — Throughout India. 



XXXIV. CACTACEAE. 



68, Cereus Haw. 



90. Cereus sp. 



Loc. — -Barkuda. Nos. 1268 and 134. 



Columnar cactus, run wild. In Records Bot. Surv. Ind. iv, p. 287, etc. Mr. 

 Burkill mentions Cereus pterogonus Lemaire as a columnar Cereus common in India 

 and he cites fig. 5360 in Bot. Mag. as his authority. It has, however, been since 

 pointed out that C. pterogonus is a climbing species. The cactus generally believed 

 to be a Cereus and seen round Calcutta may not be a true Cereus. At this stage it is 

 therefore difficult to name any of the introduced Cerei. 



" Flowers in hot weather and rains." 



69. Opuntia Tourn. 



91. Opuntia sp. 



Loc. — Barkuda. Nos. 1269 and 1448. 



" In full flower in April. Only one species of this genus, with flowers of a curious 

 shade of orange shaded with pink, occurs on Barkuda. On the neighbouring islands 

 another species is also found (No. 1466) in smaller numbers. It has bright yellow 

 flowers the outer petals of which are stained with scarlet, and its spines growing 

 singly are larger, firmer and less easily detached." The latter is probably 0. mojw- 

 cantha, but there has been much confusion about the species of Opuntia feral in 

 India. 



XXXV. IvECYTHIDACEAE. 



70. Barringtonia Forst. 



92. B. acutangula Gaertn. F.B.I, ii, 508; Prain, Beng. PI. i, 493; Roxb. 

 Fl. Ind. ii, 508. 



Loc. — Barkuda. No. 1244. 



"A single tree growing at edge of lake. It flowers at several times in succession 

 between the beginning of June and October. In 1920 the first flowers opened at 

 the end of the first week in June. At this time the tree was the only tree or shrub 

 in full flower on the island." 



Distrib. — Throughout India. 



^ XXXVI. RHIZOPHORACEAE. 

 71. Weihea Spreng. 



93. W. ceylanica Baill. F.B.I, ii, 441. 



Loc. — Barkuda. Nos. 1240, 1265, 1381 and 1382. 



" In profuse flower in April for a few days only. Fruit-capsules dehiscing in 

 June." 



Distrib. — Mysore, Carnatic and Ceylon at low levels. 



