22 



r.ENERAL L'EVIKW OF THE 0|;('IIIDE.E. 



tlie lalii'Uum (kcuv in Saocolabiuin, in wliidi llif basal part is 



always hollowed out and extends downwards like a small sac ; in 



Cypi'ipediuni where it appears like a large slipper-like hag and also 



in several species of Catasetum. In nearly all the Cattleyas and 



Lrplias and also in other genera the l)asal part of the hhide i>f the 



labelluni is i-uUcd over the cohunn into a tuhe, while llie front pari 



Funnel-shapod lalielhim of Vamla tores. 



or intermediate lube is often crisped and fringed in a very curious 

 manner. In DendroUum Brymerianum, Lo'lia DujlnjatKi and Epidendrum 

 (Xanodes) Medusce the blade is conspicuously fimbriated, in the first-named 

 species very elaborately so, and in these and other genera it is often the 

 most richly coloured of all the floral segments. On the lal)ellum is 

 iiften developed a fleshy excrescence or callus wliiih in some ( )nrids 



Saccate lal nullum of Saccolabinui ln'Uinnni 



it 



reduced to small 



is (if very comi)lex form : in other genera it i.- 

 tubercles or simple keels or raised lines which, in some species of 

 (Idontoglossum and throughout Coelogyne and Thunia, are beautifully 

 fringed. In Zygopetalum the cre.st of the lip is very thick and often 

 euriouslv furrowed. 



