PTEROSTYLIS NANA. Native of New South Wales, Victoria, Tasmania, South 
Australia, Western Australia, and New Zealand. 
A small but dainty species which ranges between 2 and 12 inches in height with 
a single (or sometimes two) green flower. Leaves clustered at the base of the stem. 
Identifiable by the small green tooth in the fork of the lower lip. Grows in 
colonies under trees and shrubs and occasionally on the trunks of trees. Flowers 
in Winter and Spring. 
PTEROSTYLIS NUTANS. Native of Queensland, New South Wales, Victoria, 
South Australia, Tasmania and New Zealand. (Ilustrated.) 
This species grows in well sheltered situations in open forest country and occa- 
sionally in the coastal scrubs. It is variable in size, ranging from tiny plants 
an inch high to giants of 15 inches. Leaves from a typical rosette at the base 
of the stem, which is sheathed by four to five bracts. Flower solitary. Green 
with a number of fine brown or red lines. The whole flower bent forward or 
nodding, hence the specific name. Flowers in Winter and Spring. 
PTEROSTYLIS OBTUSA. Native of Queensland, New South Wales, Victoria, 
and South Australia. (Illustrated). 
A rather graceful species, the stem having a few pointed and undulated green 
leaves, topped, usually, by a solitary flower, though, occasionally, two flowers 
are produced. These are small, green, marked with brown or green lines. Some- 
times wholly green. The tongue is blunted at the tip. Flowers in Autumn. 
PTEROSTYLIS OPHIOGLOSSA. Native of Queensland, New South Wales, and 
New Caledonia. 
A small herb-like species, with a stem that ranges between 5 and 10 inches in 
height, and is clothed with a few cordate, pointed leaves. The flowers are 
solitary (rarely two) and are greenish-white with brown and green lines. The 
distinguishing feature is the forked tongue, which is more or less like that of a 
snake—hence the name. Flowers in Autumn. 
PTEROSTYLIS PARVIFLORA. Native of Queensland, New South Wales, Vic- 
toria, South Australia, and Tasmania. 
A very variable species. That found on the coast and in the dry ranges grows 
from a rosette, is slender and rarely more than 7 inches in height. In this type 
the flowers are about three or four in number and honey coloured. Another 
form, found in the open forests, is of deeper colouring, with prominent dark 
green lines, marked with yellowish-brown or red markings. This form grows up 
to 2 feet in height, and has up to 13 flowers. Another type (var. aphylla), found 
on the higher hills, is stouter in form and carries one or two flowers. This form 
is practically leafless. Flowers at various times throughout the year. 
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