162 FLORA OF SOUTH AUSTRALIA. 
Dipodium. 
Tall; calyx and pene almost Pals red- peoieds. labellum 
bilobed 
Graeratarn 
Leaves 6 to 12 inches long, keeled, channelled above 
Thelymitra. 
1. Column incurved (hood) over the anther, an 
appendage on each side terminated by a tuft 
of hairs. 
a. Petals blue or bluish. 
Hair-tufts reaching beyond the hood; hood 3-lobed, the 
central one crested a 
Hair-tufts turned upwards not eendint devon the Hibod. 
Hood bilobed ; the sinus narrow and deep, slightly 
denticulated ; flowers about 7, pale-violet ; stigma 
oblong-obcordate, anther ahi tie Rather tall, 
moderately stout 
Hood bilobed, the sinus short and bisa, both sith. 
out denticles ; flowers 2 to 4, bluish-v iolet ; ; stigma 
transversely round-oblong, anther distant. Slen- 
der, not tall sae 
Hair-tufts horizontal. 
Hood bilobed, denticulate along the edges and the 
base of the sinus; flowers about 10, purplish-blue ; 
anther much hidden behind the rear Rather 
tall 
Hood bilobed and Beenie dentict nine ‘suiall panei: 
lobe in the sinus; flowers about 30, large, greyish- 
blue ; anther hidden by the stigma. Tall, robust 
b. Petals yellow blotched with light-brown. 
Hood deeply fringed with linear mee with a club- 
shaped dorsal appendage 
c. Petals bric ight. beh 
Hood hardly developed, 3-lobed; hair-tufts turned 
upwards, ee 2 2-lobed at the base. Rather tall, 
stout ; : ; 
11. Column not hooded; lateral Aon he ii with- 
out hair-tufts; stems flexuose, never tall. 
a. Petals yellow; sepals reddish outside. 
Column produced in a terminal plate behind the anther. 
Terminal plate produced above the anther, undulate 
or almost denticulate; lateral appendages broad 
and rugose ; column of an urn-like form; flowers 
1 or 2 
punctatum 
canaliculatum 
ixioides 
longifolia 
parviflora 
aristata 
grandiflora 
fuscolutea 
luteocilium 
urnalis 
