12 
It is also strictly an occidental division, saving the genus 
Polystachya, unless we admit Appendicula and Cryptoglottis , 
which are insular Indian. Those genera however require 
further examination. 
I do not profess to be able of myself to settle at present 
the true limits of what may be called the Maxillaridous divi- 
sion of Vande® ; but, in order to assist others who may be 
working in the Orchidaceous mine, I will just put down what 
I at present think will be the genera to be referred to it. 
The tabular form being the most convenient for study, I have 
adopted it, printing in italics those genera which seem certain, 
and in Romans such as require much further examination. 
Maxillarid^e. Sepala lateralia plus minus obliqua, saepius 
majora, unde alabastrus hinc gibbus. Labellum column® 
appressum, ecalcaratum. Columna semiteres, basi pro- 
ducta. Pollinia 2-4 (-8 ?). 
[The genus Zygopefcalum, whose lateral sepals are very 
little oblique, joins this Division of Vande® to that of 
Sarcanthid®, in consequence of its near affinity to 
Eulophia in the last mentioned division.] 
* Labellum medio interruptum. Stanhopea, Houlletia, Peristeria, Anguloa 
(Cuitlauzina ?). 
* Labellum continuum. 
a. Sepala lateralia divaricata incurva basi angustata ; Govenia, Batemannia. 
b. Sepala lateralia ascendentia ; Zygopetalum. 
c. Sepala lateralia recta, ssepiiis triangularia. 
|| Pollinia 2 ; Acropera , Chcenanthe, Malachadenia. 
j| || Pollinia 8 ; v. 4 plura ; Appendicula, Cryptoglottis. 
j| || || Pollinia 4 ; v. 2 biloba. 
X Flores regulares clausi ; Ornithidium. 
+ X Flores regulares expansi; Trigonidium, Psittacoglossum, Stenia, 
Promencea, Warrea. 
£ + £ Flores ringentes . 
1 . Caudiculae 2 ; Bifrenaria. 
2. Caudicula 1 . 
H Kolomna maxima navicularis, clinandrio cucullato. 
Huntley a. 
If If Columna clavata, angusta, clinandrio nudo. 
Glandula lunata, caudiculis brevissimis v. nullis ; 
Maxillaria, Dicrypt a, Xylobium, Camaridium, 
Siagonantbus, Scuticaria. 
dAW Glandula ovata, caudicula brevissima, v. 0. 
Scaphy glottis. 
Glandula minuta ; caudicula setacea. 
Polystachya, Paphinia, Lycast 
