290 
On the Conifera of Tasmania. 
1. Microcacurys tetragona, Hook. fil.; Atlirotaxis tetragon^ 
Hook. Ic. Plant, t. 560. 
Hab. Tasmania, on the banks of Lake St. Clair, abundant 
Gunn (366.) 
This genus is distinguished from Atlirotaxis by the very dif. 
ferent form and structure of its amenta, which are not broader 
than the branches; by the solitary, exposed seed; and by th e 
hyaline membranous testa surrounding it. From Cupressus th e 
same character will also separate it. The pollen is of a different 
form from that of either of those genera, and the foliage also. 
4. Podocarpus, L’Herit. 
1. P. alpina, Brown, in Mirbel, Essai sur la Geographic de s 
Coniferes in Mem. Mus. d'Hist. Nat. v. 13, p. 15. Bennett 
in Plant, rar. Jav. p. 40. 
Hab. Tasmania, on the summit of Mount Wellington and nea r 
Marlborough, in the elevated central parts of the island 
Gunn (n. 226.) 
This is one of the few species of Coniferm which, excepting th c 
Junipers, never attains the size even of a shrub. It is allied to 
the P. Totarra of New Zealand, but is a very distinct plant. The 
Marlborough specimens are larger than those from Mount Wel¬ 
lington. In the former habitat it grows at about 3000 feet above 
the sea, and near the summit of the latter mountain at 4000 feet 
The pollen-grains of all the Podocarpi which I have examined 
except P. dacrydioides, namely those of P. Totarra, P. ferruyi- 
nea, and the present, are, as Mr. Bennett describes in his able 
paper, of a curved oval form, with dark granular extremities. Of 
P. dacrydioides I have seen only very old and perhaps mutilated 
grains, which were certainly trigonous with three opaque nuclei 
very much like those of Microcachrys. 
2. P. ? Lawrencii, Hook. fil.; foliis laxis subdistichis patentibus 
linearibus utrinque attenuatis pungentibus. 
Hab. Tasmania, Lawrence, n. 218. 
This is a very distinct species, though possessing neither flower 
nor fruit. Still the habit and appearance are altogether like P. 
spinulosa, Br., and the woody tissue presents a single series of 
