OF THE TONGA OR FRIENDLY ISLANDS. 199 
GYMNOSPERME#. 
CoNIFER®. 
Podocarpus elata, R. Br.— Harvey ; Lister. 
East Australia, from Rockingham Bay, southward to the 
Macquarrie river. 
CYCADACER. 
Cycas circinalis, Linn.— Lister. 
Solomon Islands, New Caledonia, New Britain, Fiji, North 
Australia, Malaya, India, eastern tropical Africa, and the Masca- 
rene Islands. 
With a numerous series of specimens, both wild and cultivated, 
before us, Mr. W. T. Thiselton Dyer and I find it impossible to 
sort them satisfactorily into the proposed species: C. circinalis, 
L., C. Rumphii, Migq., and C. celebica, Miq., to say nothing of the 
half-a-dozen or more other forms which have been described as 
such; but it would, perhaps, be premature to unite them without 
studying them where they grow in abundance. Cycas is rare in 
Polynesia and unknown in the Society, Marquesas, and Sandwich 
groups, and most abundant in the Malay Archipelago. 
FILIcEs. 
Gleichenia dichotoma, Hook.— Home; Lister. 
Fiji to the Marquesas and Sandwich Islands, and in tropical 
and subtropical regions generally. 
Alsophila lunulata, R. Br.—Lister. 
New Hebrides, Fiji, and Navigator Islands. 
Davallia elegans, Sw.— Lister. 
Society Islands, tropical Australia, Malaya, China, India, 
Madagascar, and western Tropical Africa. 
Davallia solida, Sw.— Home; Lister. 
Fiji and Society Islands, Java, and the Malayan Peninsula. 
Adiantum Capillus-Veneris, Linn.— Lister. 
Almost cosmopolitan, except in the colder regions. 
Adiantum diaphanum, Blume.— Lister. 
New Caledonia, Fiji and Navigator Islands, New Zealand, Aus- 
tralia, Malaya, and South-east China. 
