ORCHIDS. 115 
Tima), one of the most handsome of all terrestrial Orchidee, 
belongs. The beautiful glands, which in varied arrangement 
and colors beset and tinge the labellum, gave rise to the name 
Caladenia. While the sepals of the Spider-Orchid are upwards 
long-attenuated, they are short and not much pointed in the 
blue-flowered Caladenia deformis and the still more frequent 
pink-flowerd Caladenia carnea, while its large and broad leaf dis- 
tinguishes Caladenia latifolia. Other species are rarer than 
these ; all bear only a solitary leaf, by which means the Caladenias 
can already be separated from the always two-leaved Chiloglottis- 
species. Their flowerstalks bear frequently only one single flower. 
These few are singled out for explaining some of the specific 
characteristics of our terrestrial Orchidez, because one or the 
other of the Caladenias is sure to be at hand for examination any- 
where in the spring. The sixth volume of the Flora Australiensis 
can be consulted for demarkation of these and allied plants; and 
excellent drawings of some of them are also published in Miss 
Charsley’s atlas of the “‘ Wild Flowers growing around Melbourne.” 
It is beyond the scope of these pages to define even in faint 
outline only the limits of the genera and species, which interest 
us as indigenous more particularly ; but it is here worthy of 
instructural remark, by what main-notes the principal other 
genera of this lovely group of plants can be readily recognised 
by any beginner of the study of plants. Acquainted with some 
Caladenias he may recognise the Glossodias (one of which here 
only common: Glossodia major) by the absence of the stalked 
glands of the labellum and by the presence of a tongue-like basal 
appendage, from which this genus derives its name. 
In Cyrtostylis and Acianthus the labellum is also smooth or 
nearly so, but it wants the appendage of Glossodia ; the pollen- 
masses in each cell of the anther of Cyrtostylis are two, in those 
of Acianthus four. The curved column gives the name to the 
former genus, the upwards much narrowed sepals to the latter. 
Our species are Cyrtostylis reniformis and Acianthus exsertus. 
In Lyperanthus the broadness of the upper sepal constitutes the 
main-distinction from Caladenia. It was designated generically 
from the gloomy darkness of its flowers, but the flowers of Lyper- 
H2 
