IA loseira \ diatomacks (< Somber). 
Loanda. Among Oscillaria in wooden bucket ox nol 
continually filled with water in gardens at Loanda ; in the oountrj 
garden of Sr. I>r. Blendes Alfonso; ifl Oct. 1858. No. 127. Sediment 
of Lemna and Chara from the Represa (pond) of Luis Gomez; Feb. 
1858. No. 281. No specimen. Sediment <>t' [nfuaoria; Bepresa d< 
Bemposta ; 17 June 1858. No. 283. 
Golungo Alto.- Yellowish-red slimy tufts, sometimes Boating in 
l)iibbly masses on the- Burface of ponds, sometimes submerged in oom 
pany with Conferva ; remarkable for their metallic lustre in the dry 
state : only once observed, ami then it was coimiion in ponds in the 
banks of the Cuan<^o river near Sauge ; in [sidro's V ar/.ea (marsh] 
meadow), July l s -">7. No. 133. With Conferva in rivulet- aeai 
Sange ; June 1856. No. 160. 
Bengi blla. A green Alga, very gregarious, forming yellowish 
screen scum-like strata over several miles of tl oean about a mile 
from the coast. Welwitsch records that on the 22nd and - >r<J of Jun< 
I860, the sea in the Bay of Benguella was for several miles parallel to 
the coast covered with strata of this Alga : and he hazards the surges 
tion that it might perhaps have been carried down with the Mood out 
of the river Catumbella. No. 184. 
