BOUGAINVILLE (Mamamolimo).—6° 12' S, 155° 15' E. This is the largest island in the Solomon Group, being 127 miles long (northwest to southeast) and about 59 miles across at the widest place. The highest elevations are 9850 and 10171 feet, at the tops of active volcanoes. Ecologically, Bougainville is mostly dense rain forest, which is less dense on the summits of higher mountains.
BUKA.—5° 15' S, 154° 38' E.
CHOISEUL.—7° 04' S, 157° 01' E. This island, formed along a northwest-southeast line of low mountains (maximum elevation of 3500 feet), is about 90 miles long and 20 miles wide. Most collecting was at Malangona (Sasamunga on some maps) on the southwestern coast.
FAURO.—6° 55' S, 156° 07' E. This small island, about 14 miles long (north-south) and six miles wide (east-west), lies about 10 miles south and east of Bougainville. Fauro is formed around a volcanic cone having a maximum elevation of 1925 feet; it has considerable dense mangrove swamp along the west coast, and mature rain forest with little understory growth. Most collecting was at Toumoa, on one of two southern peninsulas.
FLORIDA (Nggela).—9° 05' S, 160° 16' E. Florida, the main island in the Nggela Island Subgroup, is mountainous and except for some small grassy areas, supports dense rain forest. It is nearly 25 miles long (east-west) and nine miles wide (north-south), with a maximum elevation, at Mount Barnett, of about 1366 feet. Most collecting was at Haleta, on the southwestern coast. At this locality there were scattered mangrove swamps, rain forest, and gardens inland.
GANONGGA (Ronogo, Ronongo).—8° 03' S, 156° 35' E.
GATUKAI.—8° 47' S, 158° 12' E.
GHIZO (Gizo, Keso).—8° 05' S, 156° 59' E.
GOWER (N'dai).—7° 54' S, 160° 34' E.
GUADALCANAL (Guadalcanar).—9° 15' S, 159° 35' E. Guadalcanal is mostly of volcanic origin and has an irregular chain of mountains along the southern coast. The highest elevation is 8005 feet at Mount Popomanasiu. This large island is nearly 80 miles long (east-west) and 25 miles wide (north-south). Most of the northwestern part of Guadalcanal supports alang-alang grass. The remainder of the island is heavily wooded.